3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "<!-- static comment--> <a href='/dir1/dir2/DYNAMIC'> STRING1 STRING2 </a>"; $pattern ="# comment-->\n\s*<a href...dir1.dir2..*?>\s*([\w]+)\s*([\w]+)#s"; preg_match($pattern, $string, $match); var_dump($match[1]);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 1 in /in/I6cVN on line 10 NULL
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 1 in /in/I6cVN on line 10 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 1 in /in/I6cVN on line 10 NULL