X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCore%2FCache%2FCache.php;h=cf5b15d052afb877b36ac0b3a47c38abcc2ac3e2;hb=cbe435bb708ccf17a4b5bea1e20c3258c9524700;hp=4e24246e886e584f4c2d24b16b1c5aea2a5012ad;hpb=19777baa793f51e744adb8e3fc12bb857bd111e3;p=friendica.git

diff --git a/src/Core/Cache/Cache.php b/src/Core/Cache/Cache.php
index 4e24246e88..cf5b15d052 100644
--- a/src/Core/Cache/Cache.php
+++ b/src/Core/Cache/Cache.php
@@ -28,13 +28,6 @@ abstract class Cache implements ICache
 	const MINUTE       = 60;
 	const INFINITE     = 0;
 
-	/**
-	 * Force each Cache implementation to define the ToString method
-	 *
-	 * @return string
-	 */
-	abstract function __toString();
-
 	/**
 	 * @var string The hostname
 	 */
@@ -91,19 +84,19 @@ abstract class Cache implements ICache
 	 * Filters the keys of an array with a given prefix
 	 * Returns the filtered keys as an new array
 	 *
-	 * @param array $array The array, which should get filtered
+	 * @param array $keys The keys, which should get filtered
 	 * @param string|null $prefix The prefix (if null, all keys will get returned)
 	 *
 	 * @return array The filtered array with just the keys
 	 */
-	protected function filterArrayKeysByPrefix($array, $prefix = null)
+	protected function filterArrayKeysByPrefix(array $keys, string $prefix = null)
 	{
 		if (empty($prefix)) {
-			return array_keys($array);
+			return $keys;
 		} else {
 			$result = [];
 
-			foreach (array_keys($array) as $key) {
+			foreach ($keys as $key) {
 				if (strpos($key, $prefix) === 0) {
 					array_push($result, $key);
 				}