3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('test_1' => 1, 'test_2' => 1, 'test_3' => 1); $array['test_1']++; $array['test_2'] = $array['test_2'] + 1; $array['test_3'] = $array['test_3']++; var_dump($array);
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 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(3) { ["test_1"]=> int(2) ["test_2"]=> int(2) ["test_3"]=> int(1) }
preferences:
224.5 ms | 406 KiB | 341 Q