3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array('subcategory' => array('0' => 18,'1' => 19)); print_r($test);
Output for 4.3.0, 5.3.28 - 5.3.29, 5.4.19 - 5.4.45, 5.5.4 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 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 ( [subcategory] => Array ( [0] => 18 [1] => 19 ) )
preferences:
193.52 ms | 405 KiB | 293 Q