3v4l.org

run code in 300+ PHP versions simultaneously
<?php function subString($str, $limit) { $char = ''; if($limit >= strlen($str)) $limit = strlen($str); for ($i = 0; $i < $limit; $i++) { $char .= $str[$i]; } return $char; } $string = 'aaaaaaaaaa bbbbbbbbbb ccccccccc dddddddddd eeeeeeeeee ffffffffff gggggggggg'; print subString($string, 100);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
aaaaaaaaaa bbbbbbbbbb ccccccccc dddddddddd eeeeeeeeee ffffffffff gggggggggg

preferences:
265.42 ms | 405 KiB | 396 Q