Summery Summery

Saves the data to the cache.

Syntax Syntax

wp_cache_set( int|string $key, mixed $data, string $group = '', int $expire )

Description Description

Differs from wp_cache_add() and wp_cache_replace() in that it will always write data.

Parameters Parameters


(Required) The cache key to use for retrieval later.


(Required) The contents to store in the cache.


(Optional) Where to group the cache contents. Enables the same key to be used across groups.

Default value: ''


(Optional) When to expire the cache contents, in seconds. Default 0 (no expiration).

Return Return

(bool) True on success, false on failure.

Source Source

File: wp-includes/cache.php

function wp_cache_set( $key, $data, $group = '', $expire = 0 ) {
	global $wp_object_cache;

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


Changelog Changelog

Version Description
2.0.0 Introduced.

See also See also


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