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Description

Sets last changed date for the specified cache group to now.

Usage

$string = wp_cache_set_last_changed( $group );

Parameters

$group

( string ) required – Where the cache contents are grouped.

Returns

string UNIX timestamp when the group was last changed.

Source

File name: wordpress/wp-includes/functions.php
Lines:

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

  $time = microtime();

  wp_cache_set( 'last_changed', $time, $group );

  
/**
 * Fires after a cache group `last_changed` time is updated.
 * This may occur multiple times per page load and registered
 * actions must be performant.
 *
 * @since 6.3.0
 *
 * @param string    $group         The cache group name.
 * @param int       $time          The new last changed time.
 * @param int|false $previous_time The previous last changed time. False if not previously set.
 */
  do_action( 'wp_cache_set_last_changed', $group, $time, $previous_time );

  return $time;
}
 

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