Get img src with PHP

$html = '<img id="12" border="0" src="/images/image.jpg" alt="Image" width="100" height="100" />';

$doc = new DOMDocument();

$doc->loadHTML($html);

$xpath = new DOMXPath($doc);

$src = $xpath->evaluate("string(//img/@src)"); # "/images/image.jpg"

Or for those who really need to save space:

$xpath = new DOMXPath(@DOMDocument::loadHTML($html));

$src = $xpath->evaluate("string(//img/@src)");

And for the one-liners out there:

$src = (string) reset(simplexml_import_dom(DOMDocument::loadHTML($html))->xpath("//img/@src"));