Regex & PHP - isolate src attribute from img tag

Question

With PHP, how can I isolate the contents of the src attribute from $foo? The end result I\'m looking for would give me just \"http://example.com/img/image.jpg\"

Answer 1

I got this code:

$dom = new DOMDocument();
$dom->loadHTML($img);
echo $dom->getElementsByTagName('img')->item(0)->getAttribute('src');

Assuming there is only one img :P