3v4l.org

run code in 500+ PHP versions simultaneously
<?php $haystack = array(); $haystack[0] = 'German'; $haystack[1] = 'English'; $haystack_lower = array_map('strtolower', $haystack); print_r($haystack); print_r('<br>'); print_r($haystack_lower); print_r('<br>'); if (array_search('german',$haystack_lower) !== FALSE) { print_r('match'); } ?>
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Array ( [0] => German [1] => English ) <br>Array ( [0] => german [1] => english ) <br>match
preferences:
29.34 ms | 1138 KiB | 7 Q