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PHP mysqli real_connect() Function

PHP MySQLi Reference : Open a new connection to the MySQL server, with extra connect options

Definition and Usage

The real_connect() / mysqli_real_connect() function opens a new connection to the MySQL server.

This function differs from connect() in the following ways:

real_connect() requires a valid object created by init()

real_connect() can be used with options() to set different options for the connection

real_connect() has a flag parameter

Syntax

Object oriented style:

$mysqli -> real_connect(host, username, password, dbname, port, socket, flag)

Procedural style:

mysqli_real_connect(connection, host, username, password, dbname, port, socket, flag)

Parameter Values

Parameter	Description
connection	Required. Specifies the MySQL connection to use
host	Optional. Specifies a host name or an IP address
username	Optional. Specifies the MySQL username
password	Optional. Specifies the MySQL password
dbname	Optional. Specifies the default database to be used
port	Optional. Specifies the port number to attempt to connect to the MySQL server
socket	Optional. Specifies the socket or named pipe to be used
flag	Optional. Specifies different connection options. Possible values: MYSQLI_CLIENT_COMPRESS - Use compression protocol MYSQLI_CLIENT_FOUND_ROWS - Return number of matched rows (not affected rows) MYSQLI_CLIENT_IGNORE_SPACE - Allow spaces after function names. Make function names reserved words MYSQLI_CLIENT_INTERACTIVE - Allow interactive_timeout seconds of inactivity before closing connection MYSQLI_CLIENT_SSL - Use SSL encryption MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT

Technical Details

Return Value:	TRUE on success. FALSE on failure
PHP Version:	5+
PHP Changelog:	PHP 5.6: Added MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT flag

Example - Procedural style

Open a new connection to the MySQL server, with extra connect options:

<?php
$con = mysqli_init();
if (!$con) {
die("mysqli_init failed");
}

// Specify connection timeout
mysqli_options($con, MYSQLI_OPT_CONNECT_TIMEOUT, 10);

// Specify read options from named file instead of my.cnf
mysqli_options($con, MYSQLI_READ_DEFAULT_FILE, "myfile.cnf");

mysqli_real_connect($con,"localhost","my_user","my_password","my_db");
?>

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