refactor: don't call array_key_exists() twice

Author: kenjis

system/Security/CheckPhpIni.php

@@ -141,9 +141,10 @@ public static function checkIni(): array
         $ini    = ini_get_all();
 
         foreach ($items as $key => $values) {
+            $hasKeyInIni  = array_key_exists($key, $ini);
             $output[$key] = [
-                'global'      => array_key_exists($key, $ini) ? $ini[$key]['global_value'] : 'disabled',
-                'current'     => array_key_exists($key, $ini) ? $ini[$key]['local_value'] : 'disabled',
+                'global'      => $hasKeyInIni ? $ini[$key]['global_value'] : 'disabled',
+                'current'     => $hasKeyInIni ? $ini[$key]['local_value'] : 'disabled',
                 'recommended' => $values['recommended'] ?? '',
                 'remark'      => $values['remark'] ?? '',
             ];