function wp_cache_add($key, $data, $group = '', $expire = 0) {}

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


  • int|string $key: The cache key to use for retrieval later
  • mixed $data: The data to add to the cache store
  • string $group: The group to add the cache to
  • int $expire: When the cache data should be expired

Source code

function wp_cache_add($key, $data, $group = '', $expire = 0) {

	global $wp_object_cache;

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



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