3v4l.org

run code in 300+ PHP versions simultaneously
<?php $etag = '"123-456\"789"'; $regex = '~(?:^|[\h,]+)(?:W/)?(")?(?(1)((?:[^"\\\\]|\\\\.)*(*MARK:Q))(?:"|\\\\|$)|([^,]*(*MARK:T)))~'; \preg_match_all($regex, $etag, $matches, \PREG_SET_ORDER); print_r($matches); echo \preg_replace('/\\\\(.)/', '$1', $matches[0][2]); var_dump(strpos($etag, '\\'));
Output for git.master_jit, git.master, rfc.property-hooks
Array ( [0] => Array ( [0] => "123-456\"789" [1] => " [2] => 123-456\"789 [MARK] => Q ) ) 123-456"789int(8)

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:
56.25 ms | 401 KiB | 8 Q