wp_cache_add() WP 1.0

Adds data to the cache, if the cache key doesn't already exist.

No Hooks.

Return

true/false. True on success, false if cache key and group already exist.

Usage

wp_cache_add( $key, $data, $group, $expire );

$key(int/string) (required)

The cache key to use for retrieval later.

$data(mixed) (required)

The data to add to the cache.

$group(string)

The group to add the cache to. Enables the same key to be used across groups.
Default: ''

$expire(int)

When the cache data should expire, in seconds.
Default: 0 (no expiration)

Notes

• See: WP_Object_Cache::add()
• Global. WP_Object_Cache. $wp_object_cache Object cache global instance.

Changelog

Code of wp cache add: wp-includes/cache.php ^{WP 5.4.2}

<?php
function wp_cache_add( $key, $data, $group = '', $expire = 0 ) {
	global $wp_object_cache;

	return $wp_object_cache->add( $key, $data, $group, (int) $expire );
}

Related Functions

From tag: cache (caching)