3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= array( 'mela' => 'pera', 'pippo'=> 'pera', 'carlo'=>'banana', 'saverio'=>'pera', 'antonio'=>'banana', ); $b= array_diff_key( $a , array_unique( $a ) ); $i=0; print_r($b); foreach($b as $c => $key){ print_r($c); print_r($key); }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [pippo] => pera [saverio] => pera [antonio] => banana ) pippoperasaverioperaantoniobanana

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:
42.01 ms | 401 KiB | 8 Q