22.9.8.7. The MysqlndUhConnection class (MysqlndUhConnection)

<?phpclass proxy extends MysqlndUhConnection { /* Hook mysqlnd's connection::change_user call */ public function changeUser($res, $user, $passwd, $db, $silent, $passwd_len) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::changeUser($res, $user, $passwd, $db, $silent, $passwd_len);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}/* Install proxy/hooks to be used with all future mysqlnd connection */mysqlnd_uh_set_connection_proxy(new proxy());/* Create mysqli connection which is using the mysqlnd library */$mysqli = new mysqli("localhost", "root", "", "test");/* Example of a user API call which triggers the hooked mysqlnd call */var_dump($mysqli->change_user("root", "bar", "test"));?>    

The above example will output:

proxy::changeUser(array (  0 => NULL,  1 => 'root',  2 => 'bar',  3 => 'test',  4 => false,  5 => 3,))proxy::changeUser returns falsebool(false)

<?phpclass proxy extends MysqlndUhConnection {  public function charsetName($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::charsetName($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump(mysqli_character_set_name($mysqli));?>    

The above example will output:

proxy::charsetName(array (  0 => NULL,))proxy::charsetName returns 'latin1'string(6) "latin1"

<?phpfunction close_type_to_string($close_type) { $mapping = array(  MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED => "MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED",  MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT => "MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT",  MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT => "MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT",  MYSQLND_UH_MYSQLND_CLOSE_LAST => "MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT" ); return (isset($mapping[$close_type])) ? $mapping[$close_type] : 'unknown';}class proxy extends MysqlndUhConnection {  public function close($res, $close_type) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   printf("close_type = %s\n", close_type_to_string($close_type));   /* WARNING: you must call the parent */   $ret = parent::close($res, $close_type);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->close();?>    

The above example will output:

proxy::close(array (  0 => NULL,  1 => 0,))close_type = MYSQLND_UH_MYSQLND_CLOSE_EXPLICITproxy::close returns true

<?phpclass proxy extends MysqlndUhConnection { public function connect($res, $host, $user, $passwd, $db, $port, $socket, $mysql_flags) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::connect($res, $host, $user, $passwd, $db, $port, $socket, $mysql_flags);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");?>    

The above example will output:

proxy::connect(array (  0 => NULL,  1 => 'localhost',  2 => 'root',  3 => '',  4 => 'test',  5 => 3306,  6 => NULL,  7 => 131072,))proxy::connect returns true

<?phpclass proxy extends MysqlndUhConnection { public function endPSession($conn) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::endPSession($conn);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("p:localhost", "root", "", "test");$mysqli->close();?>    

The above example will output:

proxy::endPSession(array (  0 => NULL,))proxy::endPSession returns true

<?phpclass proxy extends MysqlndUhConnection { public function escapeString($res, $string) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::escapeString($res, $string);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->set_charset("latin1");$mysqli->real_escape_string("test0'test");?>    

The above example will output:

proxy::escapeString(array (  0 => NULL,  1 => 'test0\'test',))proxy::escapeString returns 'test0\\\'test'

<?phpclass proxy extends MysqlndUhConnection { public function getAffectedRows($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getAffectedRows($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->query("DROP TABLE IF EXISTS test");$mysqli->query("CREATE TABLE test(id INT)");$mysqli->query("INSERT INTO test(id) VALUES (1)");var_dump($mysqli->affected_rows);?>    

The above example will output:

proxy::getAffectedRows(array (  0 => NULL,))proxy::getAffectedRows returns 1int(1)

<?phpclass proxy extends MysqlndUhConnection { public function getErrorNumber($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getErrorNumber($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());printf("connect...\n");$mysqli = new mysqli("localhost", "root", "", "test");printf("query...\n");$mysqli->query("PLEASE_LET_THIS_BE_INVALID_SQL");printf("errno...\n");var_dump($mysqli->errno);printf("close...\n");$mysqli->close();?>    

The above example will output:

connect...proxy::getErrorNumber(array (  0 => NULL,))proxy::getErrorNumber returns 0query...errno...proxy::getErrorNumber(array (  0 => NULL,))proxy::getErrorNumber returns 1064int(1064)close...

<?phpclass proxy extends MysqlndUhConnection { public function getErrorString($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getErrorString($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());printf("connect...\n");$mysqli = new mysqli("localhost", "root", "", "test");printf("query...\n");$mysqli->query("WILL_I_EVER_LEARN_SQL?");printf("errno...\n");var_dump($mysqli->error);printf("close...\n");$mysqli->close();?>    

The above example will output:

connect...proxy::getErrorString(array (  0 => NULL,))proxy::getErrorString returns ''query...errno...proxy::getErrorString(array (  0 => NULL,))proxy::getErrorString returns 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'WILL_I_EVER_LEARN_SQL?\' at line 1'string(168) "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WILL_I_EVER_LEARN_SQL?' at line 1"close...

<?phpclass proxy extends MysqlndUhConnection { public function getFieldCount($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getFieldCount($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->query("WILL_I_EVER_LEARN_SQL?");var_dump($mysqli->field_count);$mysqli->query("SELECT 1, 2, 3 FROM DUAL");var_dump($mysqli->field_count);?>    

The above example will output:

proxy::getFieldCount(array (  0 => NULL,))proxy::getFieldCount returns 0int(0)proxy::getFieldCount(array (  0 => NULL,))proxy::getFieldCount returns 3proxy::getFieldCount(array (  0 => NULL,))proxy::getFieldCount returns 3int(3)

<?phpclass proxy extends MysqlndUhConnection { public function getHostInformation($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getHostInformation($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->host_info);?>    

The above example will output:

proxy::getHostInformation(array (  0 => NULL,))proxy::getHostInformation returns 'Localhost via UNIX socket'string(25) "Localhost via UNIX socket"

<?phpclass proxy extends MysqlndUhConnection { public function getLastInsertId($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getLastInsertId($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->query("DROP TABLE IF EXISTS test");$mysqli->query("CREATE TABLE test(id INT AUTO_INCREMENT PRIMARY KEY, col VARCHAR(255))");$mysqli->query("INSERT INTO test(col) VALUES ('a')");var_dump($mysqli->insert_id);?>    

The above example will output:

proxy::getLastInsertId(array (  0 => NULL,))proxy::getLastInsertId returns 1int(1)

<?phpclass proxy extends MysqlndUhConnection { public function getLastMessage($res) {   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));   $ret = parent::getLastMessage($res);   printf("%s returns %s\n", __METHOD__, var_export($ret, true));   return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->info);$mysqli->query("DROP TABLE IF EXISTS test");var_dump($mysqli->info);?>    

The above example will output:

proxy::getLastMessage(array (  0 => NULL,))proxy::getLastMessage returns ''string(0) ""proxy::getLastMessage(array (  0 => NULL,))proxy::getLastMessage returns ''string(0) ""

<?phpclass proxy extends MysqlndUhConnection { public function getProtocolInformation($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getProtocolInformation($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->protocol_version);?>    

The above example will output:

proxy::getProtocolInformation(array (  0 => NULL,))proxy::getProtocolInformation returns 10int(10)

<?phpclass proxy extends MysqlndUhConnection { public function getServerInformation($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getServerInformation($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->server_info);?>    

The above example will output:

proxy::getServerInformation(array (  0 => NULL,))proxy::getServerInformation returns '5.1.45-debug-log'string(16) "5.1.45-debug-log"

<?phpclass proxy extends MysqlndUhConnection { public function getServerStatistics($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getServerStatistics($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump(mysqli_stat($mysqli));?>    

The above example will output:

proxy::getServerStatistics(array (  0 => NULL,))proxy::getServerStatistics returns 'Uptime: 2059995  Threads: 1  Questions: 126157  Slow queries: 0  Opens: 6377  Flush tables: 1  Open tables: 18  Queries per second avg: 0.61'string(140) "Uptime: 2059995  Threads: 1  Questions: 126157  Slow queries: 0  Opens: 6377  Flush tables: 1  Open tables: 18  Queries per second avg: 0.61"

<?phpclass proxy extends MysqlndUhConnection { public function getServerVersion($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getServerVersion($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->server_version);?>    

The above example will output:

proxy::getServerVersion(array (  0 => NULL,))proxy::getServerVersion returns 50145int(50145)

<?phpclass proxy extends MysqlndUhConnection { public function getSqlstate($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getSqlstate($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->sqlstate);$mysqli->query("AN_INVALID_REQUEST_TO_PROVOKE_AN_ERROR");var_dump($mysqli->sqlstate);?>    

The above example will output:

proxy::getSqlstate(array (  0 => NULL,))proxy::getSqlstate returns '00000'string(5) "00000"proxy::getSqlstate(array (  0 => NULL,))proxy::getSqlstate returns '42000'string(5) "42000"

<?phpclass proxy extends MysqlndUhConnection { public function getStatistics($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getStatistics($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->get_connection_stats());?>    

The above example will output:

proxy::getStatistics(array (  0 => NULL,))proxy::getStatistics returns array (  'bytes_sent' => '73',  'bytes_received' => '77',  'packets_sent' => '2',  'packets_received' => '2',  'protocol_overhead_in' => '8',  'protocol_overhead_out' => '8',  'bytes_received_ok_packet' => '0',  'bytes_received_eof_packet' => '0',  'bytes_received_rset_header_packet' => '0',  'bytes_received_rset_field_meta_packet' => '0',  'bytes_received_rset_row_packet' => '0',  'bytes_received_prepare_response_packet' => '0',  'bytes_received_change_user_packet' => '0',  'packets_sent_command' => '0',  'packets_received_ok' => '0',  'packets_received_eof' => '0',  'packets_received_rset_header' => '0',  'packets_received_rset_field_meta' => '0',  'packets_received_rset_row' => '0',  'packets_received_prepare_response' => '0',  'packets_received_change_user' => '0',  'result_set_queries' => '0',  'non_result_set_queries' => '0',  'no_index_used' => '0',  'bad_index_used' => '0',  'slow_queries' => '0',  'buffered_sets' => '0',  'unbuffered_sets' => '0',  'ps_buffered_sets' => '0',  'ps_unbuffered_sets' => '0',  'flushed_normal_sets' => '0',  'flushed_ps_sets' => '0',  'ps_prepared_never_executed' => '0',  'ps_prepared_once_executed' => '0',  'rows_fetched_from_server_normal' => '0',  'rows_fetched_from_server_ps' => '0',  'rows_buffered_from_client_normal' => '0',  'rows_buffered_from_client_ps' => '0',  'rows_fetched_from_client_normal_buffered' => '0',  'rows_fetched_from_client_normal_unbuffered' => '0',  'rows_fetched_from_client_ps_buffered' => '0',  'rows_fetched_from_client_ps_unbuffered' => '0',  'rows_fetched_from_client_ps_cursor' => '0',  'rows_affected_normal' => '0',  'rows_affected_ps' => '0',  'rows_skipped_normal' => '0',  'rows_skipped_ps' => '0',  'copy_on_write_saved' => '0',  'copy_on_write_performed' => '0',  'command_buffer_too_small' => '0',  'connect_success' => '1',  'connect_failure' => '0',  'connection_reused' => '0',  'reconnect' => '0',  'pconnect_success' => '0',  'active_connections' => '1',  'active_persistent_connections' => '0',  'explicit_close' => '0',  'implicit_close' => '0',  'disconnect_close' => '0',  'in_middle_of_command_close' => '0',  'explicit_free_result' => '0',  'implicit_free_result' => '0',  'explicit_stmt_close' => '0',  'implicit_stmt_close' => '0',  'mem_emalloc_count' => '0',  'mem_emalloc_amount' => '0',  'mem_ecalloc_count' => '0',  'mem_ecalloc_amount' => '0',  'mem_erealloc_count' => '0',  'mem_erealloc_amount' => '0',  'mem_efree_count' => '0',  'mem_efree_amount' => '0',  'mem_malloc_count' => '0',  'mem_malloc_amount' => '0',  'mem_calloc_count' => '0',  'mem_calloc_amount' => '0',  'mem_realloc_count' => '0',  'mem_realloc_amount' => '0',  'mem_free_count' => '0',  'mem_free_amount' => '0',  'mem_estrndup_count' => '0',  'mem_strndup_count' => '0',  'mem_estndup_count' => '0',  'mem_strdup_count' => '0',  'proto_text_fetched_null' => '0',  'proto_text_fetched_bit' => '0',  'proto_text_fetched_tinyint' => '0',  'proto_text_fetched_short' => '0',  'proto_text_fetched_int24' => '0',  'proto_text_fetched_int' => '0',  'proto_text_fetched_bigint' => '0',  'proto_text_fetched_decimal' => '0',  'proto_text_fetched_float' => '0',  'proto_text_fetched_double' => '0',  'proto_text_fetched_date' => '0',  'proto_text_fetched_year' => '0',  'proto_text_fetched_time' => '0',  'proto_text_fetched_datetime' => '0',  'proto_text_fetched_timestamp' => '0',  'proto_text_fetched_string' => '0',  'proto_text_fetched_blob' => '0',  'proto_text_fetched_enum' => '0',  'proto_text_fetched_set' => '0',  'proto_text_fetched_geometry' => '0',  'proto_text_fetched_other' => '0',  'proto_binary_fetched_null' => '0',  'proto_binary_fetched_bit' => '0',  'proto_binary_fetched_tinyint' => '0',  'proto_binary_fetched_short' => '0',  'proto_binary_fetched_int24' => '0',  'proto_binary_fetched_int' => '0',  'proto_binary_fetched_bigint' => '0',  'proto_binary_fetched_decimal' => '0',  'proto_binary_fetched_float' => '0',  'proto_binary_fetched_double' => '0',  'proto_binary_fetched_date' => '0',  'proto_binary_fetched_year' => '0',  'proto_binary_fetched_time' => '0',  'proto_binary_fetched_datetime' => '0',  'proto_binary_fetched_timestamp' => '0',  'proto_binary_fetched_string' => '0',  'proto_binary_fetched_blob' => '0',  'proto_binary_fetched_enum' => '0',  'proto_binary_fetched_set' => '0',  'proto_binary_fetched_geometry' => '0',  'proto_binary_fetched_other' => '0',  'init_command_executed_count' => '0',  'init_command_failed_count' => '0',  'com_quit' => '0',  'com_init_db' => '0',  'com_query' => '0',  'com_field_list' => '0',  'com_create_db' => '0',  'com_drop_db' => '0',  'com_refresh' => '0',  'com_shutdown' => '0',  'com_statistics' => '0',  'com_process_info' => '0',  'com_connect' => '0',  'com_process_kill' => '0',  'com_debug' => '0',  'com_ping' => '0',  'com_time' => '0',  'com_delayed_insert' => '0',  'com_change_user' => '0',  'com_binlog_dump' => '0',  'com_table_dump' => '0',  'com_connect_out' => '0',  'com_register_slave' => '0',  'com_stmt_prepare' => '0',  'com_stmt_execute' => '0',  'com_stmt_send_long_data' => '0',  'com_stmt_close' => '0',  'com_stmt_reset' => '0',  'com_stmt_set_option' => '0',  'com_stmt_fetch' => '0',  'com_deamon' => '0',  'bytes_received_real_data_normal' => '0',  'bytes_received_real_data_ps' => '0',)array(160) {  ["bytes_sent"]=>  string(2) "73"  ["bytes_received"]=>  string(2) "77"  ["packets_sent"]=>  string(1) "2"  ["packets_received"]=>  string(1) "2"  ["protocol_overhead_in"]=>  string(1) "8"  ["protocol_overhead_out"]=>  string(1) "8"  ["bytes_received_ok_packet"]=>  string(1) "0"  ["bytes_received_eof_packet"]=>  string(1) "0"  ["bytes_received_rset_header_packet"]=>  string(1) "0"  ["bytes_received_rset_field_meta_packet"]=>  string(1) "0"  ["bytes_received_rset_row_packet"]=>  string(1) "0"  ["bytes_received_prepare_response_packet"]=>  string(1) "0"  ["bytes_received_change_user_packet"]=>  string(1) "0"  ["packets_sent_command"]=>  string(1) "0"  ["packets_received_ok"]=>  string(1) "0"  ["packets_received_eof"]=>  string(1) "0"  ["packets_received_rset_header"]=>  string(1) "0"  ["packets_received_rset_field_meta"]=>  string(1) "0"  ["packets_received_rset_row"]=>  string(1) "0"  ["packets_received_prepare_response"]=>  string(1) "0"  ["packets_received_change_user"]=>  string(1) "0"  ["result_set_queries"]=>  string(1) "0"  ["non_result_set_queries"]=>  string(1) "0"  ["no_index_used"]=>  string(1) "0"  ["bad_index_used"]=>  string(1) "0"  ["slow_queries"]=>  string(1) "0"  ["buffered_sets"]=>  string(1) "0"  ["unbuffered_sets"]=>  string(1) "0"  ["ps_buffered_sets"]=>  string(1) "0"  ["ps_unbuffered_sets"]=>  string(1) "0"  ["flushed_normal_sets"]=>  string(1) "0"  ["flushed_ps_sets"]=>  string(1) "0"  ["ps_prepared_never_executed"]=>  string(1) "0"  ["ps_prepared_once_executed"]=>  string(1) "0"  ["rows_fetched_from_server_normal"]=>  string(1) "0"  ["rows_fetched_from_server_ps"]=>  string(1) "0"  ["rows_buffered_from_client_normal"]=>  string(1) "0"  ["rows_buffered_from_client_ps"]=>  string(1) "0"  ["rows_fetched_from_client_normal_buffered"]=>  string(1) "0"  ["rows_fetched_from_client_normal_unbuffered"]=>  string(1) "0"  ["rows_fetched_from_client_ps_buffered"]=>  string(1) "0"  ["rows_fetched_from_client_ps_unbuffered"]=>  string(1) "0"  ["rows_fetched_from_client_ps_cursor"]=>  string(1) "0"  ["rows_affected_normal"]=>  string(1) "0"  ["rows_affected_ps"]=>  string(1) "0"  ["rows_skipped_normal"]=>  string(1) "0"  ["rows_skipped_ps"]=>  string(1) "0"  ["copy_on_write_saved"]=>  string(1) "0"  ["copy_on_write_performed"]=>  string(1) "0"  ["command_buffer_too_small"]=>  string(1) "0"  ["connect_success"]=>  string(1) "1"  ["connect_failure"]=>  string(1) "0"  ["connection_reused"]=>  string(1) "0"  ["reconnect"]=>  string(1) "0"  ["pconnect_success"]=>  string(1) "0"  ["active_connections"]=>  string(1) "1"  ["active_persistent_connections"]=>  string(1) "0"  ["explicit_close"]=>  string(1) "0"  ["implicit_close"]=>  string(1) "0"  ["disconnect_close"]=>  string(1) "0"  ["in_middle_of_command_close"]=>  string(1) "0"  ["explicit_free_result"]=>  string(1) "0"  ["implicit_free_result"]=>  string(1) "0"  ["explicit_stmt_close"]=>  string(1) "0"  ["implicit_stmt_close"]=>  string(1) "0"  ["mem_emalloc_count"]=>  string(1) "0"  ["mem_emalloc_amount"]=>  string(1) "0"  ["mem_ecalloc_count"]=>  string(1) "0"  ["mem_ecalloc_amount"]=>  string(1) "0"  ["mem_erealloc_count"]=>  string(1) "0"  ["mem_erealloc_amount"]=>  string(1) "0"  ["mem_efree_count"]=>  string(1) "0"  ["mem_efree_amount"]=>  string(1) "0"  ["mem_malloc_count"]=>  string(1) "0"  ["mem_malloc_amount"]=>  string(1) "0"  ["mem_calloc_count"]=>  string(1) "0"  ["mem_calloc_amount"]=>  string(1) "0"  ["mem_realloc_count"]=>  string(1) "0"  ["mem_realloc_amount"]=>  string(1) "0"  ["mem_free_count"]=>  string(1) "0"  ["mem_free_amount"]=>  string(1) "0"  ["mem_estrndup_count"]=>  string(1) "0"  ["mem_strndup_count"]=>  string(1) "0"  ["mem_estndup_count"]=>  string(1) "0"  ["mem_strdup_count"]=>  string(1) "0"  ["proto_text_fetched_null"]=>  string(1) "0"  ["proto_text_fetched_bit"]=>  string(1) "0"  ["proto_text_fetched_tinyint"]=>  string(1) "0"  ["proto_text_fetched_short"]=>  string(1) "0"  ["proto_text_fetched_int24"]=>  string(1) "0"  ["proto_text_fetched_int"]=>  string(1) "0"  ["proto_text_fetched_bigint"]=>  string(1) "0"  ["proto_text_fetched_decimal"]=>  string(1) "0"  ["proto_text_fetched_float"]=>  string(1) "0"  ["proto_text_fetched_double"]=>  string(1) "0"  ["proto_text_fetched_date"]=>  string(1) "0"  ["proto_text_fetched_year"]=>  string(1) "0"  ["proto_text_fetched_time"]=>  string(1) "0"  ["proto_text_fetched_datetime"]=>  string(1) "0"  ["proto_text_fetched_timestamp"]=>  string(1) "0"  ["proto_text_fetched_string"]=>  string(1) "0"  ["proto_text_fetched_blob"]=>  string(1) "0"  ["proto_text_fetched_enum"]=>  string(1) "0"  ["proto_text_fetched_set"]=>  string(1) "0"  ["proto_text_fetched_geometry"]=>  string(1) "0"  ["proto_text_fetched_other"]=>  string(1) "0"  ["proto_binary_fetched_null"]=>  string(1) "0"  ["proto_binary_fetched_bit"]=>  string(1) "0"  ["proto_binary_fetched_tinyint"]=>  string(1) "0"  ["proto_binary_fetched_short"]=>  string(1) "0"  ["proto_binary_fetched_int24"]=>  string(1) "0"  ["proto_binary_fetched_int"]=>  string(1) "0"  ["proto_binary_fetched_bigint"]=>  string(1) "0"  ["proto_binary_fetched_decimal"]=>  string(1) "0"  ["proto_binary_fetched_float"]=>  string(1) "0"  ["proto_binary_fetched_double"]=>  string(1) "0"  ["proto_binary_fetched_date"]=>  string(1) "0"  ["proto_binary_fetched_year"]=>  string(1) "0"  ["proto_binary_fetched_time"]=>  string(1) "0"  ["proto_binary_fetched_datetime"]=>  string(1) "0"  ["proto_binary_fetched_timestamp"]=>  string(1) "0"  ["proto_binary_fetched_string"]=>  string(1) "0"  ["proto_binary_fetched_blob"]=>  string(1) "0"  ["proto_binary_fetched_enum"]=>  string(1) "0"  ["proto_binary_fetched_set"]=>  string(1) "0"  ["proto_binary_fetched_geometry"]=>  string(1) "0"  ["proto_binary_fetched_other"]=>  string(1) "0"  ["init_command_executed_count"]=>  string(1) "0"  ["init_command_failed_count"]=>  string(1) "0"  ["com_quit"]=>  string(1) "0"  ["com_init_db"]=>  string(1) "0"  ["com_query"]=>  string(1) "0"  ["com_field_list"]=>  string(1) "0"  ["com_create_db"]=>  string(1) "0"  ["com_drop_db"]=>  string(1) "0"  ["com_refresh"]=>  string(1) "0"  ["com_shutdown"]=>  string(1) "0"  ["com_statistics"]=>  string(1) "0"  ["com_process_info"]=>  string(1) "0"  ["com_connect"]=>  string(1) "0"  ["com_process_kill"]=>  string(1) "0"  ["com_debug"]=>  string(1) "0"  ["com_ping"]=>  string(1) "0"  ["com_time"]=>  string(1) "0"  ["com_delayed_insert"]=>  string(1) "0"  ["com_change_user"]=>  string(1) "0"  ["com_binlog_dump"]=>  string(1) "0"  ["com_table_dump"]=>  string(1) "0"  ["com_connect_out"]=>  string(1) "0"  ["com_register_slave"]=>  string(1) "0"  ["com_stmt_prepare"]=>  string(1) "0"  ["com_stmt_execute"]=>  string(1) "0"  ["com_stmt_send_long_data"]=>  string(1) "0"  ["com_stmt_close"]=>  string(1) "0"  ["com_stmt_reset"]=>  string(1) "0"  ["com_stmt_set_option"]=>  string(1) "0"  ["com_stmt_fetch"]=>  string(1) "0"  ["com_deamon"]=>  string(1) "0"  ["bytes_received_real_data_normal"]=>  string(1) "0"  ["bytes_received_real_data_ps"]=>  string(1) "0"}

<?phpclass proxy extends MysqlndUhConnection { public function getThreadId($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getThreadId($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->thread_id);?>    

The above example will output:

proxy::getThreadId(array (  0 => NULL,))proxy::getThreadId returns 27646int(27646)

<?phpclass proxy extends MysqlndUhConnection { public function getWarningCount($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::getWarningCount($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");var_dump($mysqli->warning_count);?>    

The above example will output:

proxy::getWarningCount(array (  0 => NULL,))proxy::getWarningCount returns 0int(0)

<?phpclass proxy extends MysqlndUhConnection { public function init($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::init($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");?>    

The above example will output:

proxy::init(array (  0 => NULL,))proxy::init returns true

<?phpclass proxy extends MysqlndUhConnection { public function killConnection($res, $pid) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::killConnection($res, $pid);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->kill($mysqli->thread_id);?>    

The above example will output:

proxy::killConnection(array (  0 => NULL,  1 => 27650,))proxy::killConnection returns true

<?phpclass proxy extends MysqlndUhConnection { public function listFields($res, $table, $pattern) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::listFields($res, $table, $pattern);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysql = mysql_connect("localhost", "root", "");mysql_select_db("test", $mysql);mysql_query("DROP TABLE IF EXISTS test_a", $mysql);mysql_query("CREATE TABLE test_a(id INT, col1 VARCHAR(255))", $mysql);$res = mysql_list_fields("test", "test_a", $mysql);printf("num_rows = %d\n", mysql_num_rows($res));while ($row = mysql_fetch_assoc($res)) var_dump($row);?>    

The above example will output:

proxy::listFields(array (  0 => NULL,  1 => 'test_a',  2 => '',))proxy::listFields returns NULLnum_rows = 0

<?phpclass proxy extends MysqlndUhConnection { public function listMethod($res, $query, $pattern, $par1) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::listMethod($res, $query, $pattern, $par1);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysql = mysql_connect("localhost", "root", "");$res = mysql_list_dbs($mysql);printf("num_rows = %d\n", mysql_num_rows($res));while ($row = mysql_fetch_assoc($res)) var_dump($row);?>    

The above example will output:

proxy::listMethod(array (  0 => NULL,  1 => 'SHOW DATABASES',  2 => '',  3 => '',))proxy::listMethod returns NULLnum_rows = 6array(1) {  ["Database"]=>  string(18) "information_schema"}array(1) {  ["Database"]=>  string(5) "mysql"}array(1) {  ["Database"]=>  string(8) "oxid_new"}array(1) {  ["Database"]=>  string(7) "phptest"}array(1) {  ["Database"]=>  string(7) "pushphp"}array(1) {  ["Database"]=>  string(4) "test"}

<?phpclass proxy extends MysqlndUhConnection { public function moreResults($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::moreResults($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->multi_query("SELECT 1 AS _one; SELECT 2 AS _two");do {  $res = $mysqli->store_result();  var_dump($res->fetch_assoc());  printf("%s\n", str_repeat("-", 40));} while ($mysqli->more_results() && $mysqli->next_result());?>    

The above example will output:

array(1) {  ["_one"]=>  string(1) "1"}----------------------------------------proxy::moreResults(array (  0 => NULL,))proxy::moreResults returns trueproxy::moreResults(array (  0 => NULL,))proxy::moreResults returns truearray(1) {  ["_two"]=>  string(1) "2"}----------------------------------------proxy::moreResults(array (  0 => NULL,))proxy::moreResults returns false

<?phpclass proxy extends MysqlndUhConnection { public function nextResult($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::nextResult($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->multi_query("SELECT 1 AS _one; SELECT 2 AS _two");do {  $res = $mysqli->store_result();  var_dump($res->fetch_assoc());  printf("%s\n", str_repeat("-", 40));} while ($mysqli->more_results() && $mysqli->next_result());?>    

The above example will output:

array(1) {  ["_one"]=>  string(1) "1"}----------------------------------------proxy::nextResult(array (  0 => NULL,))proxy::nextResult returns truearray(1) {  ["_two"]=>  string(1) "2"}----------------------------------------

<?phpclass proxy extends MysqlndUhConnection { public function ping($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::ping($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->ping();?>    

The above example will output:

proxy::ping(array (  0 => NULL,))proxy::ping returns true

<?phpclass proxy extends MysqlndUhConnection { public function query($res, $query) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $query = "SELECT 'How about query rewriting?'";  $ret = parent::query($res, $query);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$res = $mysqli->query("SELECT 'Welcome mysqlnd_uh!' FROM DUAL");var_dump($res->fetch_assoc());?>    

The above example will output:

proxy::query(array (  0 => NULL,  1 => 'SELECT \'Welcome mysqlnd_uh!\' FROM DUAL',))proxy::query returns truearray(1) {  ["How about query rewriting?"]=>  string(26) "How about query rewriting?"}

<?phpclass proxy extends MysqlndUhConnection { public function queryReadResultsetHeader($res, $stmt) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::queryReadResultsetHeader($res, $stmt);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$res = $mysqli->query("SELECT 'Welcome mysqlnd_uh!' FROM DUAL");var_dump($res->fetch_assoc());?>    

The above example will output:

proxy::queryReadResultsetHeader(array (  0 => NULL,  1 => NULL,))proxy::queryReadResultsetHeader returns truearray(1) {  ["Welcome mysqlnd_uh!"]=>  string(19) "Welcome mysqlnd_uh!"}

<?phpclass proxy extends MysqlndUhConnection { public function reapQuery($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::reapQuery($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$conn1 = new mysqli("localhost", "root", "", "test");$conn2 = new mysqli("localhost", "root", "", "test");$conn1->query("SELECT 1 as 'one', SLEEP(1) AS _sleep FROM DUAL", MYSQLI_ASYNC |  MYSQLI_USE_RESULT);$conn2->query("SELECT 1.1 as 'one dot one' FROM DUAL", MYSQLI_ASYNC |  MYSQLI_USE_RESULT);$links = array( $conn1->thread_id => array('link' => $conn1, 'processed' => false), $conn2->thread_id => array('link' => $conn2, 'processed' => false));$saved_errors = array();do { $poll_links = $poll_errors = $poll_reject = array(); foreach ($links as $thread_id => $link) {  if (!$link['processed']) {   $poll_links[] = $link['link'];   $poll_errors[] = $link['link'];   $poll_reject[] = $link['link'];  } } if (0 == count($poll_links))  break; if (0 == ($num_ready = mysqli_poll($poll_links, $poll_errors, $poll_reject, 0, 200000)))  continue; if (!empty($poll_errors)) {  die(var_dump($poll_errors)); } foreach ($poll_links as $link) {  $thread_id = mysqli_thread_id($link);  $links[$thread_id]['processed'] = true;  if (is_object($res = mysqli_reap_async_query($link))) {   // result set object   while ($row = mysqli_fetch_assoc($res)) {    // eat up all results    var_dump($row);   }   mysqli_free_result($res);  } else {   // either there is no result (no SELECT) or there is an error   if (mysqli_errno($link) > 0) {    $saved_errors[$thread_id] = mysqli_errno($link);    printf("'%s' caused %d\n", $links[$thread_id]['query'],     mysqli_errno($link));   }  } }} while (true);?>    

The above example will output:

proxy::reapQuery(array (  0 => NULL,))proxy::reapQuery returns truearray(1) {  ["one dot one"]=>  string(3) "1.1"}proxy::reapQuery(array (  0 => NULL,))proxy::reapQuery returns truearray(2) {  ["one"]=>  string(1) "1"  ["_sleep"]=>  string(1) "0"}

<?phpclass proxy extends MysqlndUhConnection { public function refreshServer($res, $option) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::refreshServer($res, $option);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");mysqli_refresh($mysqli, 1);?>    

The above example will output:

proxy::refreshServer(array (  0 => NULL,  1 => 1,))proxy::refreshServer returns false

<?phpclass proxy extends MysqlndUhConnection { public function ping($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::ping($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->ping();?>    

The above example will output:

proxy::restartPSession(array (  0 => NULL,))proxy::restartPSession returns true

<?phpclass proxy extends MysqlndUhConnection { public function selectDb($res, $database) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::selectDb($res, $database);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->select_db("mysql");?>    

The above example will output:

proxy::selectDb(array (  0 => NULL,  1 => 'mysql',))proxy::selectDb returns true

<?phpclass proxy extends MysqlndUhConnection { public function sendClose($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::sendClose($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->close();?>    

The above example will output:

proxy::sendClose(array (  0 => NULL,))proxy::sendClose returns trueproxy::sendClose(array (  0 => NULL,))proxy::sendClose returns true

<?phpclass proxy extends MysqlndUhConnection { public function sendQuery($res, $query) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::sendQuery($res, $query);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->query("SELECT 1");?>    

The above example will output:

proxy::sendQuery(array (  0 => NULL,  1 => 'SELECT 1',))proxy::sendQuery returns true

<?phpclass proxy extends MysqlndUhConnection { public function serverDumpDebugInformation($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::serverDumpDebugInformation($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->dump_debug_info();?>    

The above example will output:

proxy::serverDumpDebugInformation(array (  0 => NULL,))proxy::serverDumpDebugInformation returns true

<?phpclass proxy extends MysqlndUhConnection { public function setAutocommit($res, $mode) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::setAutocommit($res, $mode);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->autocommit(false);$mysqli->autocommit(true);?>    

The above example will output:

proxy::setAutocommit(array (  0 => NULL,  1 => 0,))proxy::setAutocommit returns trueproxy::setAutocommit(array (  0 => NULL,  1 => 1,))proxy::setAutocommit returns true

<?phpclass proxy extends MysqlndUhConnection { public function setCharset($res, $charset) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::setCharset($res, $charset);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->set_charset("latin1");?>    

The above example will output:

proxy::setCharset(array (  0 => NULL,  1 => 'latin1',))proxy::setCharset returns true

<?phpfunction client_option_to_string($option) { static $mapping = array(  MYSQLND_UH_MYSQLND_OPTION_OPT_CONNECT_TIMEOUT => "MYSQLND_UH_MYSQLND_OPTION_OPT_CONNECT_TIMEOUT",  MYSQLND_UH_MYSQLND_OPTION_OPT_COMPRESS => "MYSQLND_UH_MYSQLND_OPTION_OPT_COMPRESS",  MYSQLND_UH_MYSQLND_OPTION_OPT_NAMED_PIPE => "MYSQLND_UH_MYSQLND_OPTION_OPT_NAMED_PIPE",  MYSQLND_UH_MYSQLND_OPTION_INIT_COMMAND => "MYSQLND_UH_MYSQLND_OPTION_INIT_COMMAND",  MYSQLND_UH_MYSQLND_READ_DEFAULT_FILE => "MYSQLND_UH_MYSQLND_READ_DEFAULT_FILE",  MYSQLND_UH_MYSQLND_READ_DEFAULT_GROUP => "MYSQLND_UH_MYSQLND_READ_DEFAULT_GROUP",  MYSQLND_UH_MYSQLND_SET_CHARSET_DIR => "MYSQLND_UH_MYSQLND_SET_CHARSET_DIR",  MYSQLND_UH_MYSQLND_SET_CHARSET_NAME => "MYSQLND_UH_MYSQLND_SET_CHARSET_NAME",  MYSQLND_UH_MYSQLND_OPT_LOCAL_INFILE => "MYSQLND_UH_MYSQLND_OPT_LOCAL_INFILE",  MYSQLND_UH_MYSQLND_OPT_PROTOCOL => "MYSQLND_UH_MYSQLND_OPT_PROTOCOL",  MYSQLND_UH_MYSQLND_SHARED_MEMORY_BASE_NAME => "MYSQLND_UH_MYSQLND_SHARED_MEMORY_BASE_NAME",  MYSQLND_UH_MYSQLND_OPT_READ_TIMEOUT => "MYSQLND_UH_MYSQLND_OPT_READ_TIMEOUT",  MYSQLND_UH_MYSQLND_OPT_WRITE_TIMEOUT => "MYSQLND_UH_MYSQLND_OPT_WRITE_TIMEOUT",  MYSQLND_UH_MYSQLND_OPT_USE_RESULT => "MYSQLND_UH_MYSQLND_OPT_USE_RESULT",  MYSQLND_UH_MYSQLND_OPT_USE_REMOTE_CONNECTION => "MYSQLND_UH_MYSQLND_OPT_USE_REMOTE_CONNECTION",  MYSQLND_UH_MYSQLND_OPT_USE_EMBEDDED_CONNECTION => "MYSQLND_UH_MYSQLND_OPT_USE_EMBEDDED_CONNECTION",  MYSQLND_UH_MYSQLND_OPT_GUESS_CONNECTION => "MYSQLND_UH_MYSQLND_OPT_GUESS_CONNECTION",  MYSQLND_UH_MYSQLND_SET_CLIENT_IP => "MYSQLND_UH_MYSQLND_SET_CLIENT_IP",  MYSQLND_UH_MYSQLND_SECURE_AUTH => "MYSQLND_UH_MYSQLND_SECURE_AUTH",  MYSQLND_UH_MYSQLND_REPORT_DATA_TRUNCATION => "MYSQLND_UH_MYSQLND_REPORT_DATA_TRUNCATION",  MYSQLND_UH_MYSQLND_OPT_RECONNECT => "MYSQLND_UH_MYSQLND_OPT_RECONNECT",  MYSQLND_UH_MYSQLND_OPT_SSL_VERIFY_SERVER_CERT => "MYSQLND_UH_MYSQLND_OPT_SSL_VERIFY_SERVER_CERT",  MYSQLND_UH_MYSQLND_OPT_NET_CMD_BUFFER_SIZE => "MYSQLND_UH_MYSQLND_OPT_NET_CMD_BUFFER_SIZE",  MYSQLND_UH_MYSQLND_OPT_NET_READ_BUFFER_SIZE => "MYSQLND_UH_MYSQLND_OPT_NET_READ_BUFFER_SIZE",  MYSQLND_UH_MYSQLND_OPT_SSL_KEY => "MYSQLND_UH_MYSQLND_OPT_SSL_KEY",  MYSQLND_UH_MYSQLND_OPT_SSL_CERT => "MYSQLND_UH_MYSQLND_OPT_SSL_CERT",  MYSQLND_UH_MYSQLND_OPT_SSL_CA => "MYSQLND_UH_MYSQLND_OPT_SSL_CA",  MYSQLND_UH_MYSQLND_OPT_SSL_CAPATH => "MYSQLND_UH_MYSQLND_OPT_SSL_CAPATH",  MYSQLND_UH_MYSQLND_OPT_SSL_CIPHER => "MYSQLND_UH_MYSQLND_OPT_SSL_CIPHER",  MYSQLND_UH_MYSQLND_OPT_SSL_PASSPHRASE => "MYSQLND_UH_MYSQLND_OPT_SSL_PASSPHRASE",  MYSQLND_UH_SERVER_OPTION_PLUGIN_DIR => "MYSQLND_UH_SERVER_OPTION_PLUGIN_DIR",  MYSQLND_UH_SERVER_OPTION_DEFAULT_AUTH => "MYSQLND_UH_SERVER_OPTION_DEFAULT_AUTH",  MYSQLND_UH_SERVER_OPTION_SET_CLIENT_IP => "MYSQLND_UH_SERVER_OPTION_SET_CLIENT_IP" ); if (version_compare(PHP_VERSION, '5.3.99-dev', '>')) {  $mapping[MYSQLND_UH_MYSQLND_OPT_MAX_ALLOWED_PACKET] = "MYSQLND_UH_MYSQLND_OPT_MAX_ALLOWED_PACKET";  $mapping[MYSQLND_UH_MYSQLND_OPT_AUTH_PROTOCOL] = "MYSQLND_UH_MYSQLND_OPT_AUTH_PROTOCOL"; } if (defined("MYSQLND_UH_MYSQLND_OPT_INT_AND_FLOAT_NATIVE")) {  /* special mysqlnd build */  $mapping["MYSQLND_UH_MYSQLND_OPT_INT_AND_FLOAT_NATIVE"] = "MYSQLND_UH_MYSQLND_OPT_INT_AND_FLOAT_NATIVE"; } return (isset($mapping[$option])) ? $mapping[$option] : 'unknown';}class proxy extends MysqlndUhConnection { public function setClientOption($res, $option, $value) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  printf("Option '%s' set to %s\n", client_option_to_string($option), var_export($value, true));  $ret = parent::setClientOption($res, $option, $value);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");?>    

The above example will output:

proxy::setClientOption(array (  0 => NULL,  1 => 210,  2 => 3221225472,))Option 'MYSQLND_UH_MYSQLND_OPT_MAX_ALLOWED_PACKET' set to 3221225472proxy::setClientOption returns trueproxy::setClientOption(array (  0 => NULL,  1 => 211,  2 => 'mysql_native_password',))Option 'MYSQLND_UH_MYSQLND_OPT_AUTH_PROTOCOL' set to 'mysql_native_password'proxy::setClientOption returns trueproxy::setClientOption(array (  0 => NULL,  1 => 8,  2 => 1,))Option 'MYSQLND_UH_MYSQLND_OPT_LOCAL_INFILE' set to 1proxy::setClientOption returns true

<?phpfunction server_option_to_string($option) { $ret = 'unknown'; switch ($option) {  case MYSQLND_UH_SERVER_OPTION_MULTI_STATEMENTS_ON:   $ret = 'MYSQLND_UH_SERVER_OPTION_MULTI_STATEMENTS_ON';   break;  case MYSQLND_UH_SERVER_OPTION_MULTI_STATEMENTS_OFF:   $ret = 'MYSQLND_UH_SERVER_OPTION_MULTI_STATEMENTS_ON';   break; } return $ret;}class proxy extends MysqlndUhConnection { public function setServerOption($res, $option) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  printf("Option '%s' set\n", server_option_to_string($option));  $ret = parent::setServerOption($res, $option);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->multi_query("SELECT 1; SELECT 2");?>    

The above example will output:

proxy::setServerOption(array (  0 => NULL,  1 => 0,))Option 'MYSQLND_UH_SERVER_OPTION_MULTI_STATEMENTS_ON' setproxy::setServerOption returns true

<?phpfunction server_cmd_2_string($command) { $mapping = array(  MYSQLND_UH_MYSQLND_COM_SLEEP => "MYSQLND_UH_MYSQLND_COM_SLEEP",  MYSQLND_UH_MYSQLND_COM_QUIT => "MYSQLND_UH_MYSQLND_COM_QUIT",  MYSQLND_UH_MYSQLND_COM_INIT_DB => "MYSQLND_UH_MYSQLND_COM_INIT_DB",  MYSQLND_UH_MYSQLND_COM_QUERY => "MYSQLND_UH_MYSQLND_COM_QUERY",  MYSQLND_UH_MYSQLND_COM_FIELD_LIST => "MYSQLND_UH_MYSQLND_COM_FIELD_LIST",  MYSQLND_UH_MYSQLND_COM_CREATE_DB => "MYSQLND_UH_MYSQLND_COM_CREATE_DB",  MYSQLND_UH_MYSQLND_COM_DROP_DB => "MYSQLND_UH_MYSQLND_COM_DROP_DB",  MYSQLND_UH_MYSQLND_COM_REFRESH => "MYSQLND_UH_MYSQLND_COM_REFRESH",  MYSQLND_UH_MYSQLND_COM_SHUTDOWN => "MYSQLND_UH_MYSQLND_COM_SHUTDOWN",  MYSQLND_UH_MYSQLND_COM_STATISTICS => "MYSQLND_UH_MYSQLND_COM_STATISTICS",  MYSQLND_UH_MYSQLND_COM_PROCESS_INFO => "MYSQLND_UH_MYSQLND_COM_PROCESS_INFO",  MYSQLND_UH_MYSQLND_COM_CONNECT => "MYSQLND_UH_MYSQLND_COM_CONNECT",  MYSQLND_UH_MYSQLND_COM_PROCESS_KILL => "MYSQLND_UH_MYSQLND_COM_PROCESS_KILL",  MYSQLND_UH_MYSQLND_COM_DEBUG => "MYSQLND_UH_MYSQLND_COM_DEBUG",  MYSQLND_UH_MYSQLND_COM_PING => "MYSQLND_UH_MYSQLND_COM_PING",  MYSQLND_UH_MYSQLND_COM_TIME => "MYSQLND_UH_MYSQLND_COM_TIME",  MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT => "MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT",  MYSQLND_UH_MYSQLND_COM_CHANGE_USER => "MYSQLND_UH_MYSQLND_COM_CHANGE_USER",  MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP => "MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP",  MYSQLND_UH_MYSQLND_COM_TABLE_DUMP => "MYSQLND_UH_MYSQLND_COM_TABLE_DUMP",  MYSQLND_UH_MYSQLND_COM_CONNECT_OUT => "MYSQLND_UH_MYSQLND_COM_CONNECT_OUT",  MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED => "MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED",  MYSQLND_UH_MYSQLND_COM_STMT_PREPARE => "MYSQLND_UH_MYSQLND_COM_STMT_PREPARE",  MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE => "MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE",  MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA => "MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA",  MYSQLND_UH_MYSQLND_COM_STMT_CLOSE => "MYSQLND_UH_MYSQLND_COM_STMT_CLOSE",  MYSQLND_UH_MYSQLND_COM_STMT_RESET => "MYSQLND_UH_MYSQLND_COM_STMT_RESET",  MYSQLND_UH_MYSQLND_COM_SET_OPTION => "MYSQLND_UH_MYSQLND_COM_SET_OPTION",  MYSQLND_UH_MYSQLND_COM_STMT_FETCH => "MYSQLND_UH_MYSQLND_COM_STMT_FETCH",  MYSQLND_UH_MYSQLND_COM_DAEMON => "MYSQLND_UH_MYSQLND_COM_DAEMON",  MYSQLND_UH_MYSQLND_COM_END => "MYSQLND_UH_MYSQLND_COM_END", ); return (isset($mapping[$command])) ? $mapping[$command] : 'unknown';}function ok_packet_2_string($ok_packet) { $mapping = array(  MYSQLND_UH_MYSQLND_PROT_GREET_PACKET => "MYSQLND_UH_MYSQLND_PROT_GREET_PACKET",  MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET => "MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET",  MYSQLND_UH_MYSQLND_PROT_OK_PACKET => "MYSQLND_UH_MYSQLND_PROT_OK_PACKET",  MYSQLND_UH_MYSQLND_PROT_EOF_PACKET => "MYSQLND_UH_MYSQLND_PROT_EOF_PACKET",  MYSQLND_UH_MYSQLND_PROT_CMD_PACKET => "MYSQLND_UH_MYSQLND_PROT_CMD_PACKET",  MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET",  MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET",  MYSQLND_UH_MYSQLND_PROT_ROW_PACKET => "MYSQLND_UH_MYSQLND_PROT_ROW_PACKET",  MYSQLND_UH_MYSQLND_PROT_STATS_PACKET => "MYSQLND_UH_MYSQLND_PROT_STATS_PACKET",  MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET => "MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET",  MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET => "MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET",  MYSQLND_UH_MYSQLND_PROT_LAST => "MYSQLND_UH_MYSQLND_PROT_LAST", ); return (isset($mapping[$ok_packet])) ? $mapping[$ok_packet] : 'unknown';}class proxy extends MysqlndUhConnection { public function simpleCommand($conn, $command, $arg, $ok_packet, $silent, $ignore_upsert_status) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  printf("Command '%s'\n", server_cmd_2_string($command));  printf("OK packet '%s'\n",  ok_packet_2_string($ok_packet));  $ret = parent::simpleCommand($conn, $command, $arg, $ok_packet, $silent, $ignore_upsert_status);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->query("SELECT 1");?>    

The above example will output:

proxy::simpleCommand(array (  0 => NULL,  1 => 3,  2 => 'SELECT 1',  3 => 13,  4 => false,  5 => false,))Command 'MYSQLND_UH_MYSQLND_COM_QUERY'OK packet 'MYSQLND_UH_MYSQLND_PROT_LAST'proxy::simpleCommand returns true:)proxy::simpleCommand(array (  0 => NULL,  1 => 1,  2 => '',  3 => 13,  4 => true,  5 => true,))Command 'MYSQLND_UH_MYSQLND_COM_QUIT'OK packet 'MYSQLND_UH_MYSQLND_PROT_LAST'proxy::simpleCommand returns true

<?phpfunction server_cmd_2_string($command) { $mapping = array(  MYSQLND_UH_MYSQLND_COM_SLEEP => "MYSQLND_UH_MYSQLND_COM_SLEEP",  MYSQLND_UH_MYSQLND_COM_QUIT => "MYSQLND_UH_MYSQLND_COM_QUIT",  MYSQLND_UH_MYSQLND_COM_INIT_DB => "MYSQLND_UH_MYSQLND_COM_INIT_DB",  MYSQLND_UH_MYSQLND_COM_QUERY => "MYSQLND_UH_MYSQLND_COM_QUERY",  MYSQLND_UH_MYSQLND_COM_FIELD_LIST => "MYSQLND_UH_MYSQLND_COM_FIELD_LIST",  MYSQLND_UH_MYSQLND_COM_CREATE_DB => "MYSQLND_UH_MYSQLND_COM_CREATE_DB",  MYSQLND_UH_MYSQLND_COM_DROP_DB => "MYSQLND_UH_MYSQLND_COM_DROP_DB",  MYSQLND_UH_MYSQLND_COM_REFRESH => "MYSQLND_UH_MYSQLND_COM_REFRESH",  MYSQLND_UH_MYSQLND_COM_SHUTDOWN => "MYSQLND_UH_MYSQLND_COM_SHUTDOWN",  MYSQLND_UH_MYSQLND_COM_STATISTICS => "MYSQLND_UH_MYSQLND_COM_STATISTICS",  MYSQLND_UH_MYSQLND_COM_PROCESS_INFO => "MYSQLND_UH_MYSQLND_COM_PROCESS_INFO",  MYSQLND_UH_MYSQLND_COM_CONNECT => "MYSQLND_UH_MYSQLND_COM_CONNECT",  MYSQLND_UH_MYSQLND_COM_PROCESS_KILL => "MYSQLND_UH_MYSQLND_COM_PROCESS_KILL",  MYSQLND_UH_MYSQLND_COM_DEBUG => "MYSQLND_UH_MYSQLND_COM_DEBUG",  MYSQLND_UH_MYSQLND_COM_PING => "MYSQLND_UH_MYSQLND_COM_PING",  MYSQLND_UH_MYSQLND_COM_TIME => "MYSQLND_UH_MYSQLND_COM_TIME",  MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT => "MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT",  MYSQLND_UH_MYSQLND_COM_CHANGE_USER => "MYSQLND_UH_MYSQLND_COM_CHANGE_USER",  MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP => "MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP",  MYSQLND_UH_MYSQLND_COM_TABLE_DUMP => "MYSQLND_UH_MYSQLND_COM_TABLE_DUMP",  MYSQLND_UH_MYSQLND_COM_CONNECT_OUT => "MYSQLND_UH_MYSQLND_COM_CONNECT_OUT",  MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED => "MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED",  MYSQLND_UH_MYSQLND_COM_STMT_PREPARE => "MYSQLND_UH_MYSQLND_COM_STMT_PREPARE",  MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE => "MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE",  MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA => "MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA",  MYSQLND_UH_MYSQLND_COM_STMT_CLOSE => "MYSQLND_UH_MYSQLND_COM_STMT_CLOSE",  MYSQLND_UH_MYSQLND_COM_STMT_RESET => "MYSQLND_UH_MYSQLND_COM_STMT_RESET",  MYSQLND_UH_MYSQLND_COM_SET_OPTION => "MYSQLND_UH_MYSQLND_COM_SET_OPTION",  MYSQLND_UH_MYSQLND_COM_STMT_FETCH => "MYSQLND_UH_MYSQLND_COM_STMT_FETCH",  MYSQLND_UH_MYSQLND_COM_DAEMON => "MYSQLND_UH_MYSQLND_COM_DAEMON",  MYSQLND_UH_MYSQLND_COM_END => "MYSQLND_UH_MYSQLND_COM_END", ); return (isset($mapping[$command])) ? $mapping[$command] : 'unknown';}function ok_packet_2_string($ok_packet) { $mapping = array(  MYSQLND_UH_MYSQLND_PROT_GREET_PACKET => "MYSQLND_UH_MYSQLND_PROT_GREET_PACKET",  MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET => "MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET",  MYSQLND_UH_MYSQLND_PROT_OK_PACKET => "MYSQLND_UH_MYSQLND_PROT_OK_PACKET",  MYSQLND_UH_MYSQLND_PROT_EOF_PACKET => "MYSQLND_UH_MYSQLND_PROT_EOF_PACKET",  MYSQLND_UH_MYSQLND_PROT_CMD_PACKET => "MYSQLND_UH_MYSQLND_PROT_CMD_PACKET",  MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET",  MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET",  MYSQLND_UH_MYSQLND_PROT_ROW_PACKET => "MYSQLND_UH_MYSQLND_PROT_ROW_PACKET",  MYSQLND_UH_MYSQLND_PROT_STATS_PACKET => "MYSQLND_UH_MYSQLND_PROT_STATS_PACKET",  MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET => "MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET",  MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET => "MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET",  MYSQLND_UH_MYSQLND_PROT_LAST => "MYSQLND_UH_MYSQLND_PROT_LAST", ); return (isset($mapping[$ok_packet])) ? $mapping[$ok_packet] : 'unknown';}class proxy extends MysqlndUhConnection { public function simpleCommandHandleResponse($conn, $ok_packet, $silent, $command, $ignore_upsert_status) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  printf("Command '%s'\n", server_cmd_2_string($command));  printf("OK packet '%s'\n",  ok_packet_2_string($ok_packet));  $ret = parent::simpleCommandHandleResponse($conn, $ok_packet, $silent, $command, $ignore_upsert_status);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysql = mysql_connect("localhost", "root", "");mysql_query("SELECT 1 FROM DUAL", $mysql);?>    

The above example will output:

proxy::simpleCommandHandleResponse(array (  0 => NULL,  1 => 5,  2 => false,  3 => 27,  4 => true,))Command 'MYSQLND_UH_MYSQLND_COM_SET_OPTION'OK packet 'MYSQLND_UH_MYSQLND_PROT_EOF_PACKET'proxy::simpleCommandHandleResponse returns true

<?phpclass proxy extends MysqlndUhConnection { public function sslSet($conn, $key, $cert, $ca, $capath, $cipher) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::sslSet($conn, $key, $cert, $ca, $capath, $cipher);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->ssl_set("key", "cert", "ca", "capath", "cipher");?>    

The above example will output:

proxy::sslSet(array (  0 => NULL,  1 => 'key',  2 => 'cert',  3 => 'ca',  4 => 'capath',  5 => 'cipher',))proxy::sslSet returns true

<?phpclass proxy extends MysqlndUhConnection { public function stmtInit($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  var_dump($res);  $ret = parent::stmtInit($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  var_dump($ret);  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$stmt = $mysqli->prepare("SELECT 1 AS _one FROM DUAL");$stmt->execute();$one = NULL;$stmt->bind_result($one);$stmt->fetch();var_dump($one);?>    

The above example will output:

proxy::stmtInit(array (  0 => NULL,))resource(19) of type (Mysqlnd Connection)proxy::stmtInit returns NULLresource(246) of type (Mysqlnd Prepared Statement (internal only - you must not modify it!))int(1)

<?phpclass proxy extends MysqlndUhConnection { public function storeResult($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::storeResult($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  var_dump($ret);  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$res = $mysqli->query("SELECT 'Also called buffered result' AS _msg FROM DUAL");var_dump($res->fetch_assoc());$mysqli->real_query("SELECT 'Good morning!' AS _msg FROM DUAL");$res = $mysqli->store_result();var_dump($res->fetch_assoc());?>    

The above example will output:

proxy::storeResult(array (  0 => NULL,))proxy::storeResult returns NULLresource(475) of type (Mysqlnd Resultset (internal only - you must not modify it!))array(1) {  ["_msg"]=>  string(27) "Also called buffered result"}proxy::storeResult(array (  0 => NULL,))proxy::storeResult returns NULLresource(730) of type (Mysqlnd Resultset (internal only - you must not modify it!))array(1) {  ["_msg"]=>  string(13) "Good morning!"}

<?phpclass proxy extends MysqlndUhConnection { public function txCommit($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::txCommit($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->commit();?>    

The above example will output:

proxy::txCommit(array (  0 => NULL,))proxy::txCommit returns true

<?phpclass proxy extends MysqlndUhConnection { public function txRollback($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::txRollback($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->rollback();?>    

The above example will output:

proxy::txRollback(array (  0 => NULL,))proxy::txRollback returns true

<?phpclass proxy extends MysqlndUhConnection { public function useResult($res) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::useResult($res);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  var_dump($ret);  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->real_query("SELECT 'Good morning!' AS _msg FROM DUAL");$res = $mysqli->use_result();var_dump($res->fetch_assoc());?>    

The above example will output:

proxy::useResult(array (  0 => NULL,))proxy::useResult returns NULLresource(425) of type (Mysqlnd Resultset (internal only - you must not modify it!))array(1) {  ["_msg"]=>  string(13) "Good morning!"}