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

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

Parameters
Return
Source
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- Used By
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User Contributed Notes

Parameters

$key int|string Required: Cache key to check for existence.
$group string Required: Cache group for the key existence check.

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Return

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

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Source

File: wp-includes/class-wp-object-cache.php. View all references

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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Used By

Used By
Used By	Description
WP_Object_Cache::replace() wp-includes/class-wp-object-cache.php	Replaces the contents in the cache, if contents already exist.
WP_Object_Cache::get() wp-includes/class-wp-object-cache.php	Retrieves the cache contents, if it exists.
WP_Object_Cache::delete() wp-includes/class-wp-object-cache.php	Removes the contents of the cache key in the group.
WP_Object_Cache::incr() wp-includes/class-wp-object-cache.php	Increments numeric cache item’s value.
WP_Object_Cache::decr() wp-includes/class-wp-object-cache.php	Decrements numeric cache item’s value.
WP_Object_Cache::add() wp-includes/class-wp-object-cache.php	Adds data to the cache if it doesn’t already exist.