3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(str_split('')); var_dump(mb_str_split(''));
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.6
array(0) { } array(0) { }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.27
array(1) { [0]=> string(0) "" } array(0) { }
preferences:
133.92 ms | 402 KiB | 119 Q