3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pole = array ( 9, '6' => 2, 'x' => 0, 9 => 'b', 15, 'a', 8 ); print_r($pole);
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 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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
Array ( [0] => 9 [6] => 2 [x] => 0 [9] => b [10] => 15 [11] => a [12] => 8 )

preferences:
239.17 ms | 405 KiB | 339 Q