3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(str_split(''));
Output for 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
array(0) { }
Output for 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 - 8.1.30
array(1) { [0]=> string(0) "" }
preferences:
66.87 ms | 408 KiB | 5 Q