upgrade_400()

Uses · 4

• is_multisite()Determines whether Multisite is enabled.
• get_option()Retrieves an option value based on an option name.
• get_available_languages()Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory.
• update_option()Updates the value of an option that was already added.

Used by · 1

• upgrade_all()Functions to be called in installation and upgrade scripts.

Source

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1962function upgrade_400() {1963	global $wp_current_db_version;1964 1965	if ( $wp_current_db_version < 29630 ) {1966		if ( ! is_multisite() && false === get_option( 'WPLANG' ) ) {1967			if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && in_array( WPLANG, get_available_languages(), true ) ) {1968				update_option( 'WPLANG', WPLANG );1969			} else {1970				update_option( 'WPLANG', '' );1971			}1972		}1973	}1974}

History

Introduced in 4.0.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.9.7 tag, from src/wp-admin/includes/upgrade.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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