WP_Object_Cache::_exists() WordPress Method
The WP_Object_Cache::_exists() method is a private method used to check if a given key exists in the cache. This is a helper method used by the public methods such as get(), set(), and add().
WP_Object_Cache::_exists( int|string $key, string $group ) #
Serves as a utility function to determine whether a key exists in the cache.
Parameters
- $key
(int|string)(Required)Cache key to check for existence.
- $group
(string)(Required)Cache group for the key existence check.
Return
(bool) Whether the key exists in the cache for the given group.
Source
File: wp-includes/class-wp-object-cache.php
protected function _exists( $key, $group ) {
return isset( $this->cache[ $group ] ) && ( isset( $this->cache[ $group ][ $key ] ) || array_key_exists( $key, $this->cache[ $group ] ) );
}
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Changelog
| Version | Description |
|---|---|
| 3.4.0 | Introduced. |