3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [[1,2,3,4,5],"abc",3,4,5]; echo "<pre>"; print_r($arr);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<pre>Array ( [0] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 ) [1] => abc [2] => 3 [3] => 4 [4] => 5 )

preferences:
144.62 ms | 404 KiB | 169 Q