3v4l.org

run code in 300+ PHP versions simultaneously
<?php $options['key'][] = 'testkey1'; $options['value'][] = 'testvalue1'; $options['key'][] = 'testkey2'; $options['value'][] = 'testvalue2'; $options['key'][] = 'testkey3'; $options['value'][] = 'testvalue3'; print_r($options);
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 ( [key] => Array ( [0] => testkey1 [1] => testkey2 [2] => testkey3 ) [value] => Array ( [0] => testvalue1 [1] => testvalue2 [2] => testvalue3 ) )
preferences:
185.98 ms | 406 KiB | 342 Q