Regular expression - delimiter problem in PHP

I'm trying to extract src attributes from: [attname src="http://example.org"] somecontent [attname src="http://www.example.com"]

What I have now:

preg_match_all('#attname src=".*[^"]#', $buffer, $bufferarr);

However it doesn't work - there's no stop after second ", what r开发者_JAVA百科esults in: attname src="http://example.org"] somecontent [attname src="http://www.example.com

By default, + and * are "greedy" - they gobble up as many characters as they can. That's why you get more than you want. If you add ? to them (+? and *?) they will be non-greedy and will stop as soon as they can.

You regexp also looks wrong. It should be something like #attname src="[^"]*?"#.

preg_match_all('#attname src="([^"]*)"#', $buffer, $bufferarr);

Not the best solution but anyways it get's the job done :

$str = '[attname src="http://example.org"] somecontent [attname src="http://www.example.com"]';
preg_match_all('/attname src=\"(.*?)\"/', $str, $match);
var_dump($match);