Summery Summery

Check or set whether WordPress is in “installation” mode.

Syntax Syntax

wp_installing( bool $is_installing = null )

Description Description

If the WP_INSTALLING constant is defined during the bootstrap, wp_installing() will default to true.

Parameters Parameters


(bool) (Optional) True to set WP into Installing mode, false to turn Installing mode off. Omit this parameter if you only want to fetch the current status.

Default value: null

Return Return

(bool) True if WP is installing, otherwise false. When a $is_installing is passed, the function will report whether WP was in installing mode prior to the change to $is_installing.

Source Source

File: wp-includes/load.php

			$locations[] = ABSPATH . 'wp-content/languages';

		if ( @is_dir( ABSPATH . WPINC . '/languages' ) ) {
			$locations[] = ABSPATH . WPINC . '/languages';

		if ( ! $locations ) {

		$locations = array_unique( $locations );

		foreach ( $locales as $locale ) {
			foreach ( $locations as $location ) {
				if ( file_exists( $location . '/' . $locale . '.mo' ) ) {


Changelog Changelog

Version Description
4.4.0 Introduced.


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