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^mysqliLast updated: Mon, 26 Oct 2026

mysqli::init

mysqli_init

(PHP 5, PHP 7, PHP 8)

mysqli::init -- mysqli_init — Initializes MySQLi and returns an object for use with mysqli_real_connect()

Description

Object-oriented style

#[\Deprecated(
    since: '8.1',
    message: 'replace calls to parent::init() with parent::__construct()',
)]
public function mysqli::init(): ?bool

Procedural style

function mysqli_init(): mysqli|false

Allocates or initializes a MYSQL object suitable for mysqli_options() and mysqli_real_connect().

Note:

Any subsequent call to any mysqli function (except mysqli_options() and mysqli_ssl_set()) will fail until mysqli_real_connect() is called.

Parameters

This function has no parameters.

Return Values

mysqli::init() returns null on success, or false on failure. mysqli_init() returns an object on success, or false on failure.

Changelog

Version Description
8.1.0 The object-oriented style mysqli::init() method has been deprecated. Replace calls to parent::init() with parent::__construct().

Examples

See mysqli_real_connect().

See Also


<mysqli::$infomysqli::$insert_id>
^mysqliLast updated: Mon, 26 Oct 2026