WP_Object_Cache::_exists( int|string $key, string $group ): bool

In this article

Serves as a utility function to determine whether a key exists in the cache.

Parameters

$keyint|stringrequired
Cache key to check for existence.
$groupstringrequired
Cache group for the key existence check.

Return

bool Whether the key exists in the cache for the given group.

Source

protected function _exists( $key, $group ) {
	return isset( $this->cache[ $group ] ) && ( isset( $this->cache[ $group ][ $key ] ) || array_key_exists( $key, $this->cache[ $group ] ) );
}

Changelog

VersionDescription
3.4.0Introduced.

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