<?php
$html = '<img src="/webapp/safilo/gen_img/p_verde.gif" width="15" height="15" alt="" border="0">';
$xpath = new DOMXPath(@DOMDocument::loadHTML($html));
$src = $xpath->evaluate("string(//img/@src)");
echo $src;
?>
PD9waHAKJGh0bWwgPSAnPGltZyBzcmM9Ii93ZWJhcHAvc2FmaWxvL2dlbl9pbWcvcF92ZXJkZS5naWYiIHdpZHRoPSIxNSIgaGVpZ2h0PSIxNSIgYWx0PSIiIGJvcmRlcj0iMCI+JzsKJHhwYXRoID0gbmV3IERPTVhQYXRoKEBET01Eb2N1bWVudDo6bG9hZEhUTUwoJGh0bWwpKTsKJHNyYyA9ICR4cGF0aC0+ZXZhbHVhdGUoInN0cmluZygvL2ltZy9Ac3JjKSIpOwplY2hvICRzcmM7Cj8+