Can be either a host name or an IP address. Passing the NULL value
or the string "localhost" to this parameter, the local host is
assumed. When possible, pipes will be used instead of the TCP/IP
protocol.
username
The MySQL user name.
passwd
If provided or NULL, the MySQL server will attempt to authenticate
the user against those user records which have no password only. This
allows one username to be used with different permissions (depending
on if a password as provided or not).
dbname
If provided will specify the default database to be used when
performing queries.
port
Specifies the port number to attempt to connect to the MySQL server.
socket
Specifies the socket or named pipe that should be used.
Замечание:
Specifying the socket parameter will not
explicitly determine the type of connection to be used when
connecting to the MySQL server. How the connection is made to the
MySQL database is determined by the host
parameter.
flags
With the parameter flags you can set different
connection options:
Supported flags
Name
Description
MYSQLI_CLIENT_COMPRESS
Use compression protocol
MYSQLI_CLIENT_FOUND_ROWS
return number of matched rows, not the number of affected rows
MYSQLI_CLIENT_IGNORE_SPACE
Allow spaces after function names. Makes all function names reserved words.
MYSQLI_CLIENT_INTERACTIVE
Allow interactive_timeout seconds (instead of
wait_timeout seconds) of inactivity before closing the connection
MYSQLI_CLIENT_SSL
Use SSL (encryption)
Замечание:
For security reasons the MULTI_STATEMENT flag is
not supported in PHP. If you want to execute multiple queries use the
mysqli_multi_query() function.
Возвращаемые значения
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
Примеры
Пример #1 mysqli::real_connect() example
Объектно-ориентированный стиль
<?php
$mysqli = mysqli_init(); if (!$mysqli) { die('mysqli_init failed'); }
MySQLnd всегда подразумевает кодировку, которую использует по умолчанию сервер. Эта кодировка передается во время
установки соединения/авторизации, которе использует mysqlnd.
Libmysql по умолчанию использует
кодировку, установленную в my.cnf или специальным вызовом mysqli_options() до
использования mysqli_real_connect(), но после mysqli_init().