3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_POST['foo'] = ''; $_POST['bar'] = ''; $_POST['baz'] = ''; // fields $fields = [['Label_Field' => 'foo']]; // just labels $labels = array_column($fields, 'Label_Field'); // filter $_POST by keys which are in $labels $data = array_filter($_POST, fn($k) => in_array($k, $labels), ARRAY_FILTER_USE_KEY); print_r($data);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [foo] => )

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:
39.29 ms | 401 KiB | 8 Q