3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '<a href="hello">world</a><div>wow <div>such depth</div> with another <a href="foo">link</a></div> <h1>and other html stuff</h1>'; $id = 1; print 'original: '.$str."\n\n"; $new_str = preg_replace_callback("/(<a|<div)/", function($match) use (&$id) { switch ($match[1]) { case '<div': $result = '<div id="b_'.$id.'"'; break; case '<a': $result = '<!-- UNIT'.$id.' --><a id="a_'.$id.'"'; break; default: $result = ""; break; } $id++; return $result; }, $str); print 'parsed: '.$new_str;
Output for git.master, git.master_jit, rfc.property-hooks
original: <a href="hello">world</a><div>wow <div>such depth</div> with another <a href="foo">link</a></div> <h1>and other html stuff</h1> parsed: <!-- UNIT1 --><a id="a_1" href="hello">world</a><div id="b_2">wow <div id="b_3">such depth</div> with another <!-- UNIT4 --><a id="a_4" href="foo">link</a></div> <h1>and other html stuff</h1>

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
44.5 ms | 402 KiB | 8 Q