3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump(str_split('')); var_dump(mb_str_split(''));
Output for 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
array(0) { } array(0) { }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34
array(1) { [0]=> string(0) "" } array(0) { }
preferences:
96.03 ms | 1292 KiB | 4 Q