<?php

function error_handler($errno, $errstr, $errfile, $errline ) {
    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
}
set_error_handler("error_handler");

$doc = new DOMDocument();
try {  
  $doc->loadXML('<root><sajats xml></root>');
} catch (Exception $e){
  echo "lalala";
}

lalala