QM_Backtrace::get_caller PHP Méthode

        public function get_caller()
        {
            $trace = $this->get_filtered_trace();
            return reset($trace);
        }

 public function error_handler($errno, $message, $file = null, $line = null)
 {
     switch ($errno) {
         case E_WARNING:
         case E_USER_WARNING:
             $type = 'warning';
             break;
         case E_NOTICE:
         case E_USER_NOTICE:
             $type = 'notice';
             break;
         case E_STRICT:
             $type = 'strict';
             break;
         case QM_E_DEPRECATED:
         case QM_E_USER_DEPRECATED:
             $type = 'deprecated';
             break;
         default:
             return false;
             break;
     }
     if (!class_exists('QM_Backtrace')) {
         return false;
     }
     if (!isset(self::$unexpected_error)) {
         // These strings are from core. They're passed through `__()` as variables so they get translated at runtime
         // but do not get seen by GlotPress when it populates its database of translatable strings for QM.
         $unexpected_error = 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.';
         $wordpress_couldnt = '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)';
         self::$unexpected_error = __($unexpected_error);
         self::$wordpress_couldnt = __($wordpress_couldnt);
     }
     // Intentionally skip reporting these core warnings. They're a distraction when developing offline.
     // The failed HTTP request will still appear in QM's output so it's not a big problem hiding these warnings.
     if (self::$unexpected_error === $message) {
         return false;
     }
     if (self::$unexpected_error . ' ' . self::$wordpress_couldnt === $message) {
         return false;
     }
     $trace = new QM_Backtrace(array('ignore_current_filter' => false));
     $caller = $trace->get_caller();
     $key = md5($message . $file . $line . $caller['id']);
     $filename = QM_Util::standard_dir($file, '');
     if (isset($this->data['errors'][$type][$key])) {
         $this->data['errors'][$type][$key]->calls++;
     } else {
         $this->data['errors'][$type][$key] = (object) array('errno' => $errno, 'type' => $type, 'message' => $message, 'file' => $file, 'filename' => $filename, 'line' => $line, 'trace' => $trace, 'calls' => 1);
     }
     return apply_filters('qm/collect/php_errors_return_value', false);
 }