3v4l.org

run code in 300+ PHP versions simultaneously
<?php $langs = array('en', 'de', 'pt'); $arr = array(); foreach($langs as $key => $lang){ $arr[$lang] = $langs; unset($arr[$lang][$key]); } print_r($arr);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [en] => Array ( [1] => de [2] => pt ) [de] => Array ( [0] => en [2] => pt ) [pt] => Array ( [0] => en [1] => de ) )
preferences:
268.01 ms | 406 KiB | 459 Q