3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'str i ng'; $chars = preg_split('/\s/', $str); var_dump( $chars );
Output for 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 - 7.2.33, 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) { [0]=> string(3) "str" [1]=> string(1) "i" [2]=> string(2) "ng" }
preferences:
175.81 ms | 404 KiB | 329 Q