3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match_all("/(?J)(?|(?P<A>a)!|(?P<A>a)=(?P<type>[si])) (?|(?P<B>b)!|(?P<B>b)=(?P<type>[si]))/", "a! b=s a=i b!", $m, PREG_SET_ORDER); foreach ($m as $s) { foreach ($s as $k => $v) { if (is_int($k)) { unset($s[$k]); } } print_r($s); }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [A] => a [type] => s [B] => b ) Array ( [A] => a [type] => i [B] => b )

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:
45.61 ms | 401 KiB | 8 Q