The MySQLi Extension Function Summary

MySQLi Class
OOP Interface	Procedural Interface	Alias (Do not use)	Description
Properties
$mysqli->affected_rows	mysqli_affected_rows()	N/A	Gets the number of affected rows in a previous MySQL operation
$mysqli->client_info	mysqli_get_client_info()	N/A	Returns the MySQL client version as a string
$mysqli->client_version	mysqli_get_client_version()	N/A	Returns MySQL client version info as an integer
$mysqli->connect_errno	mysqli_connect_errno()	N/A	Returns the error code from last connect call
$mysqli->connect_error	mysqli_connect_error()	N/A	Returns a string description of the last connect error
$mysqli->errno	mysqli_errno()	N/A	Returns the error code for the most recent function call
$mysqli->error	mysqli_error()	N/A	Returns a string description of the last error
$mysqli->field_count	mysqli_field_count()	N/A	Returns the number of columns for the most recent query
$mysqli->host_info	mysqli_get_host_info()	N/A	Returns a string representing the type of connection used
$mysqli->protocol_version	mysqli_get_proto_info()	N/A	Returns the version of the MySQL protocol used
$mysqli->server_info	mysqli_get_server_info()	N/A	Returns the version of the MySQL server
$mysqli->server_version	mysqli_get_server_version()	N/A	Returns the version of the MySQL server as an integer
$mysqli->info	mysqli_info()	N/A	Retrieves information about the most recently executed query
$mysqli->insert_id	mysqli_insert_id()	N/A	Returns the auto generated id used in the last query
$mysqli->sqlstate	mysqli_sqlstate()	N/A	Returns the SQLSTATE error from previous MySQL operation
$mysqli->warning_count	mysqli_warning_count()	N/A	Returns the number of warnings from the last query for the given link
Methods
mysqli->autocommit()	mysqli_autocommit()	N/A	Turns on or off auto-commiting database modifications
mysqli->change_user()	mysqli_change_user()	N/A	Changes the user of the specified database connection
mysqli->character_set_name(), mysqli->client_encoding	mysqli_character_set_name()	mysqli_client_encoding()	Returns the default character set for the database connection
mysqli->close()	mysqli_close()	N/A	Closes a previously opened database connection
mysqli->commit()	mysqli_commit()	N/A	Commits the current transaction
mysqli::__construct()	mysqli_connect()	N/A	Open a new connection to the MySQL server [Note: static (i.e. class) method]
mysqli->debug()	mysqli_debug()	N/A	Performs debugging operations
mysqli->dump_debug_info()	mysqli_dump_debug_info()	N/A	Dump debugging information into the log
mysqli->get_charset()	mysqli_get_charset()	N/A	Returns a character set object
mysqli->get_connection_stats()	mysqli_get_connection_stats()	N/A	Returns client connection statistics. 仅可用于 mysqlnd。
mysqli->get_client_info()	mysqli_get_client_info()	N/A	Returns the MySQL client version as a string
mysqli->get_client_stats()	mysqli_get_client_stats()	N/A	Returns client per-process statistics. 仅可用于 mysqlnd。
mysqli->get_cache_stats()	mysqli_get_cache_stats()	N/A	Returns client Zval cache statistics. 仅可用于 mysqlnd。
mysqli->get_server_info()	mysqli_get_server_info()	N/A	NOT DOCUMENTED
mysqli->get_warnings()	mysqli_get_warnings()	N/A	NOT DOCUMENTED
mysqli::init()	mysqli_init()	N/A	Initializes MySQLi and returns a resource for use with mysqli_real_connect. [Not called on an object, as it returns a $mysqli object.]
mysqli->kill()	mysqli_kill()	N/A	Asks the server to kill a MySQL thread
mysqli->more_results()	mysqli_more_results()	N/A	Check if there are any more query results from a multi query
mysqli->multi_query()	mysqli_multi_query()	N/A	Performs a query on the database
mysqli->next_result()	mysqli_next_result()	N/A	Prepare next result from multi_query
mysqli->options()	mysqli_options()	mysqli_set_opt()	Set options
mysqli->ping()	mysqli_ping()	N/A	Pings a server connection, or tries to reconnect if the connection has gone down
mysqli->prepare()	mysqli_prepare()	N/A	Prepare an SQL statement for execution
mysqli->query()	mysqli_query()	N/A	Performs a query on the database
mysqli->real_connect()	mysqli_real_connect()	N/A	Opens a connection to a mysql server
mysqli->real_escape_string(), mysqli->escape_string()	mysqli_real_escape_string()	mysqli_escape_string()	Escapes special characters in a string for use in an SQL statement, taking into account the current charset of the connection
mysqli->real_query()	mysqli_real_query()	N/A	Execute an SQL query
mysqli->rollback()	mysqli_rollback()	N/A	Rolls back current transaction
mysqli->select_db()	mysqli_select_db()	N/A	Selects the default database for database queries
mysqli->set_charset()	mysqli_set_charset()	N/A	Sets the default client character set
mysqli->set_local_infile_default()	mysqli_set_local_infile_default()	N/A	Unsets user defined handler for load local infile command
mysqli->set_local_infile_handler()	mysqli_set_local_infile_handler()	N/A	Set callback function for LOAD DATA LOCAL INFILE command
mysqli->ssl_set()	mysqli_ssl_set()	N/A	Used for establishing secure connections using SSL
mysqli->stat()	mysqli_stat()	N/A	Gets the current system status
mysqli->stmt_init()	mysqli_stmt_init()	N/A	Initializes a statement and returns an object for use with mysqli_stmt_prepare
mysqli->store_result()	mysqli_store_result()	N/A	Transfers a result set from the last query
mysqli->thread_id()	mysqli_thread_id()	N/A	Returns the thread ID for the current connection
mysqli->thread_safe()	mysqli_thread_safe()	N/A	Returns whether thread safety is given or not
mysqli->use_result()	mysqli_use_result()	N/A	Initiate a result set retrieval

MySQL_STMT
OOP Interface	Procedural Interface	Alias (Do not use)	Description
Properties
$mysqli_stmt->affected_rows	mysqli_stmt_affected_rows()	N/A	Returns the total number of rows changed, deleted, or inserted by the last executed statement
$mysqli_stmt->errno	mysqli_stmt_errno()	N/A	Returns the error code for the most recent statement call
$mysqli_stmt->error	mysqli_stmt_error()	N/A	Returns a string description for last statement error
$mysqli_stmt->field_count	mysqli_stmt_field_count()	N/A	Returns the number of field in the given statement - not documented
$mysqli_stmt->insert_id	mysqli_stmt_insert_id()	N/A	Get the ID generated from the previous INSERT operation
$mysqli_stmt->num_rows	mysqli_stmt_num_rows()	N/A	Return the number of rows in statements result set
$mysqli_stmt->param_count	mysqli_stmt_param_count()	mysqli_param_count()	Returns the number of parameter for the given statement
$mysqli_stmt->sqlstate	mysqli_stmt_sqlstate()	N/A	Returns SQLSTATE error from previous statement operation
Methods
mysqli_stmt->attr_get()	mysqli_stmt_attr_get()	N/A	Used to get the current value of a statement attribute
mysqli_stmt->attr_set()	mysqli_stmt_attr_set()	N/A	Used to modify the behavior of a prepared statement
mysqli_stmt->bind_param()	mysqli_stmt_bind_param()	mysqli_bind_param()	Binds variables to a prepared statement as parameters
mysqli_stmt->bind_result()	mysqli_stmt_bind_result()	mysqli_bind_result()	Binds variables to a prepared statement for result storage
mysqli_stmt->close()	mysqli_stmt_close()	N/A	Closes a prepared statement
mysqli_stmt->data_seek()	mysqli_stmt_data_seek()	N/A	Seeks to an arbitrary row in statement result set
mysqli_stmt->execute()	mysqli_stmt_execute()	mysqli_execute()	Executes a prepared Query
mysqli_stmt->fetch()	mysqli_stmt_fetch()	mysqli_fetch()	Fetch results from a prepared statement into the bound variables
mysqli_stmt->free_result()	mysqli_stmt_free_result()	N/A	Frees stored result memory for the given statement handle
$mysqli_stmt->get_result()	mysqli_stmt_get_result	N/A	NOT DOCUMENTED 仅可用于 mysqlnd。
mysqli_stmt->get_warnings()	mysqli_stmt_get_warnings()	N/A	NOT DOCUMENTED
$mysqli_stmt->more_results()	mysqli_stmt_more_results()	N/A	NOT DOCUMENTED 仅可用于 mysqlnd。
$mysqli_stmt->next_result()	mysqli_stmt_next_result()	N/A	NOT DOCUMENTED 仅可用于 mysqlnd。
mysqli_stmt->num_rows()	mysqli_stmt_num_rows()	N/A	See also property $mysqli_stmt->num_rows
mysqli_stmt->prepare()	mysqli_stmt_prepare()	N/A	Prepare an SQL statement for execution
mysqli_stmt->reset()	mysqli_stmt_reset()	N/A	Resets a prepared statement
mysqli_stmt->result_metadata()	mysqli_stmt_result_metadata()	mysqli_get_metadata()	Returns result set metadata from a prepared statement
mysqli_stmt->send_long_data()	mysqli_stmt_send_long_data()	mysqli_send_long_data()	Send data in blocks
mysqli_stmt->store_result()	mysqli_stmt_store_result()	N/A	Transfers a result set from a prepared statement

MySQLi_RESULT
OOP Interface	Procedural Interface	Alias (Do not use)	Description
Properties
$mysqli_result->current_field	mysqli_field_tell()	N/A	Get current field offset of a result pointer
$mysqli_result->field_count	mysqli_num_fields()	N/A	Get the number of fields in a result
$mysqli_result->lengths	mysqli_fetch_lengths()	N/A	Returns the lengths of the columns of the current row in the result set
$mysqli_result->num_rows	mysqli_num_rows()	N/A	Gets the number of rows in a result
Methods
mysqli_result->data_seek()	mysqli_data_seek()	N/A	Adjusts the result pointer to an arbitary row in the result
mysqli_result->fetch_all()	mysqli_fetch_all()	N/A	Fetches all result rows and returns the result set as an associative array, a numeric array, or both. 仅可用于 mysqlnd。
mysqli_result->fetch_array()	mysqli_fetch_array()	N/A	Fetch a result row as an associative, a numeric array, or both
mysqli_result->fetch_assoc()	mysqli_fetch_assoc()	N/A	Fetch a result row as an associative array
mysqli_result->fetch_field_direct()	mysqli_fetch_field_direct()	N/A	Fetch meta-data for a single field
mysqli_result->fetch_field()	mysqli_fetch_field()	N/A	Returns the next field in the result set
mysqli_result->fetch_fields()	mysqli_fetch_fields()	N/A	Returns an array of objects representing the fields in a result set
mysqli_result->fetch_object()	mysqli_fetch_object()	N/A	Returns the current row of a result set as an object
mysqli_result->fetch_row()	mysqli_fetch_row()	N/A	Get a result row as an enumerated array
mysqli_result->field_seek()	mysqli_field_seek()	N/A	Set result pointer to a specified field offset
mysqli_result->free(), mysqli_result->close, mysqli_result->free_result	mysqli_free_result()	N/A	Frees the memory associated with a result

MySQL_Driver
OOP Interface	Procedural Interface	Alias (Do not use)	Description
Properties
N/A
Methods
mysqli_driver->embedded_server_end()	mysqli_embedded_server_end()	N/A	NOT DOCUMENTED
mysqli_driver->embedded_server_start()	mysqli_embedded_server_start()	N/A	NOT DOCUMENTED

Note:

Alias functions are provided for backward compatibility purposes only. Do not use them in new projects.