The mysqli class

(PHP 5, PHP 7)

Introduction

Represents a connection between PHP and a MySQL database.

Class synopsis

mysqli {

/* Properties */

int $affected_rows;

string $client_info;

int $client_version;

int $connect_errno;

string $connect_error;

int $errno;

array $error_list;

string $error;

int $field_count;

int $client_version;

string $host_info;

string $protocol_version;

string $server_info;

int $server_version;

string $info;

mixed $insert_id;

string $sqlstate;

int $thread_id;

int $warning_count;

/* Methods */

__construct ([ string $host = ini_get("mysqli.default_host") [, string $username = ini_get("mysqli.default_user") [, string $passwd = ini_get("mysqli.default_pw") [, string $dbname = "" [, int $port = ini_get("mysqli.default_port") [, string $socket = ini_get("mysqli.default_socket") ]]]]]] )

bool autocommit ( bool $mode )

bool change_user ( string $user , string $password , string $database )

string character_set_name ( void )

bool close ( void )

bool commit ([ int $flags [, string $name ]] )

bool debug ( string $message )

bool dump_debug_info ( void )

object get_charset ( void )

string get_client_info ( void )

bool get_connection_stats ( void )

mysqli_warning get_warnings ( void )

mysqli init ( void )

bool kill ( int $processid )

bool more_results ( void )

bool multi_query ( string $query )

bool next_result ( void )

bool options ( int $option , mixed $value )

bool ping ( void )

public static int poll ( array &$read , array &$error , array &$reject , int $sec [, int $usec ] )

mysqli_stmt prepare ( string $query )

mixed query ( string $query [, int $resultmode = MYSQLI_STORE_RESULT ] )

bool real_connect ([ string $host [, string $username [, string $passwd [, string $dbname [, int $port [, string $socket [, int $flags ]]]]]]] )

string escape_string ( string $escapestr )

bool real_query ( string $query )

public mysqli_result reap_async_query ( void )

public bool refresh ( int $options )

bool rollback ([ int $flags [, string $name ]] )

int rpl_query_type ( string $query )

bool select_db ( string $dbname )

bool send_query ( string $query )

bool set_charset ( string $charset )

bool set_local_infile_handler ( mysqli $link , callable $read_func )

bool ssl_set ( string $key , string $cert , string $ca , string $capath , string $cipher )

string stat ( void )

mysqli_stmt stmt_init ( void )

mysqli_result store_result ([ int $option ] )

mysqli_result use_result ( void )

}

mysqli::$affected_rows — Gets the number of affected rows in a previous MySQL operation
mysqli::autocommit — Turns on or off auto-committing database modifications
mysqli::begin_transaction — Starts a transaction
mysqli::change_user — Changes the user of the specified database connection
mysqli::character_set_name — Returns the default character set for the database connection
mysqli::$client_info — Get MySQL client info
mysqli::$client_version — Returns the MySQL client version as a string
mysqli::close — Closes a previously opened database connection
mysqli::commit — Commits the current transaction
mysqli::$connect_errno — Returns the error code from last connect call
mysqli::$connect_error — Returns a string description of the last connect error
mysqli::__construct — Open a new connection to the MySQL server
mysqli::debug — Performs debugging operations
mysqli::dump_debug_info — Dump debugging information into the log
mysqli::$errno — Returns the error code for the most recent function call
mysqli::$error_list — Returns a list of errors from the last command executed
mysqli::$error — Returns a string description of the last error
mysqli::$field_count — Returns the number of columns for the most recent query
mysqli::get_charset — Returns a character set object
mysqli::get_client_info — Get MySQL client info
mysqli_get_client_stats — Returns client per-process statistics
mysqli_get_client_version — Returns the MySQL client version as an integer
mysqli::get_connection_stats — Returns statistics about the client connection
mysqli::$host_info — Returns a string representing the type of connection used
mysqli::$protocol_version — Returns the version of the MySQL protocol used
mysqli::$server_info — Returns the version of the MySQL server
mysqli::$server_version — Returns the version of the MySQL server as an integer
mysqli::get_warnings — Get result of SHOW WARNINGS
mysqli::$info — Retrieves information about the most recently executed query
mysqli::init — Initializes MySQLi and returns a resource for use with mysqli_real_connect()
mysqli::$insert_id — Returns the auto generated id used in the last query
mysqli::kill — Asks the server to kill a MySQL thread
mysqli::more_results — Check if there are any more query results from a multi query
mysqli::multi_query — Performs a query on the database
mysqli::next_result — Prepare next result from multi_query
mysqli::options — Set options
mysqli::ping — Pings a server connection, or tries to reconnect if the connection has gone down
mysqli::poll — Poll connections
mysqli::prepare — Prepare an SQL statement for execution
mysqli::query — Performs a query on the database
mysqli::real_connect — Opens a connection to a mysql server
mysqli::real_escape_string — Escapes special characters in a string for use in an SQL statement, taking into account the current charset of the connection
mysqli::real_query — Execute an SQL query
mysqli::reap_async_query — Get result from async query
mysqli::refresh — Refreshes
mysqli::release_savepoint — Removes the named savepoint from the set of savepoints of the current transaction
mysqli::rollback — Rolls back current transaction
mysqli::rpl_query_type — Returns RPL query type
mysqli::savepoint — Set a named transaction savepoint
mysqli::select_db — Selects the default database for database queries
mysqli::send_query — Send the query and return
mysqli::set_charset — Sets the default client character set
mysqli::set_local_infile_default — Unsets user defined handler for load local infile command
mysqli::set_local_infile_handler — Set callback function for LOAD DATA LOCAL INFILE command
mysqli::$sqlstate — Returns the SQLSTATE error from previous MySQL operation
mysqli::ssl_set — Used for establishing secure connections using SSL
mysqli::stat — Gets the current system status
mysqli::stmt_init — Initializes a statement and returns an object for use with mysqli_stmt_prepare
mysqli::store_result — Transfers a result set from the last query
mysqli::$thread_id — Returns the thread ID for the current connection
mysqli::thread_safe — Returns whether thread safety is given or not
mysqli::use_result — Initiate a result set retrieval
mysqli::$warning_count — Returns the number of warnings from the last query for the given link

User Contributed Notes

There are no user contributed notes for this page.

The mysqli class

Introduction

Class synopsis

Table of Contents

User Contributed Notes