3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1,2,3,4,5,6,7,8,9); function soma_1($chave, $valor){ $array[$chave][$valor] = $valor + 1; } function echo_array($chave, $valor){ echo "$chave \n"; } array_walk($array,'soma_1'); array_walk($array,'echo_array');

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41.71 ms | 402 KiB | 5 Q