3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mapped = [ [ 'key1' => false, ], [ 'key2' => 'value', ], ]; $flatMapped = array_filter(array_merge(...$mapped)); print_r($flatMapped); $csvData = [ [ 'key1' => 42, 'key2' => 142, 'key3' => 242, ], [ 'key1' => 342, 'key2' => 442, 'key3' => 542, ], ]; $newData = []; foreach ($csvData as &$item) { $item = array_intersect_key($item, $flatMapped); } print_r($csvData);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [key2] => value ) Array ( [0] => Array ( [key2] => 142 ) [1] => Array ( [key2] => 442 ) )

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:
170.39 ms | 405 KiB | 5 Q