Preg_match在特定的img-tag中查找img src

Question

I have a line of sourcecode looking like this

 <img alt="this field is variable" title="this one too" itemprop="photo" border="0" style="width:608px;" src="imgurl.jpg">

There's lots of other images on the site, so i can't just preg_match all images, i need the specific one, i had a lot of trouble doing a specific preg_match, because content of the "alt"-tag and "title"-tag is variable. Anyone knows how to do so? Thanks in advance.

Itemprop="photo" is the thing unique for this picture.

Answer 1

This regex should work:

preg_match('/<img[^>]*itemprop="photo"[^>]*src="([^"]+)">/',$source,$matches);

An explanation of the regex (from regex101):

The result will be in the array $matches.