preg_match find a link

Question

http://example.com/codeThatIHave?killcode=codeIWant

How do I get the code I want using preg_match

tried this

preg_match_all("#killcode=([^=<]+)<#", $page, $del)

but not working

Answer 1

Try :

preg_match_all("#\?.+?=([^\s]+)#i",$page,$del)