MysqlndUhConnection::close Closes a previously opened database connection &reftitle.description; public boolMysqlndUhConnection::close mysqlnd_connectionconnection intclose_type Closes a previously opened database connection. Failing to call the parent implementation may cause memory leaks or crash PHP. This is not considered a bug. Please, keep in mind that the mysqlnd library functions have never been designed to be exposed to the user space. &reftitle.parameters; connection The connection to be closed. Do not modify! close_type Why the connection is to be closed. The value of close_type is one of MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT, MYSQLND_UH_MYSQLND_CLOSE_IMPLICIT, MYSQLND_UH_MYSQLND_CLOSE_DISCONNECTED or MYSQLND_UH_MYSQLND_CLOSE_LAST. The latter should never be seen, unless the default behaviour of the mysqlnd library has been changed by a plugin. &reftitle.returnvalues; Returns &true; on success. Otherwise, returns &false; &reftitle.examples; "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(); ?> ]]> &example.outputs; NULL, 1 => 0, )) close_type = MYSQLND_UH_MYSQLND_CLOSE_EXPLICIT proxy::close returns true ]]> &reftitle.seealso; mysqlnd_uh_set_connection_proxy mysqli_close mysql_close