Simplify array filter

Signed-off-by: Joas Schilling <coding@schilljs.com>

diff --git a/lib/private/Security/Bruteforce/Throttler.php b/lib/private/Security/Bruteforce/Throttler.php
index 1e92eeed3b21f86f4176d27a0e21d8cfdeb2e1d1..ef870f4b99a15a9ed2ab5ab61e8cd62e9ed846c6 100644 (file)
--- a/lib/private/Security/Bruteforce/Throttler.php
+++ b/lib/private/Security/Bruteforce/Throttler.php
@@ -162,8 +162,7 @@ class Throttler {
 
                $keys = $this->config->getAppKeys('bruteForce');
                $keys = array_filter($keys, function ($key) {
-                       $regex = '/^whitelist_/S';
-                       return preg_match($regex, $key) === 1;
+                       return 0 === strpos($key, 'whitelist_');
                });
 
                if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {