protected function processFrame(Util\Frame $frame) { $function = $frame->getClass() ?: ''; $function .= $frame->getClass() && $frame->getFunction() ? ":" : ""; $function .= $frame->getFunction() ?: ''; $fileline = $frame->getFile() ?: '<#unknown>'; $fileline .= ':'; $fileline .= (int) $frame->getLine(); return [$function, $fileline]; }