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wp_cache_get_last_changed( string $group )

Get last changed date for the specified cache group.

Description

Parameters

$group

(string) (Required) Where the cache contents are grouped.

Return

(string) $last_changed UNIX timestamp with microseconds representing when the group was last changed.

Source

File: wp-includes/functions.php

function wp_cache_get_last_changed( $group ) {
	$last_changed = wp_cache_get( 'last_changed', $group );

	if ( ! $last_changed ) {
		$last_changed = microtime();
		wp_cache_set( 'last_changed', $last_changed, $group );
	}

	return $last_changed;
}

Changelog

Version Description
4.7.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_cache_get_last_changed