3v4l.org

run code in 300+ PHP versions simultaneously
<?php // calculate sum of ordinal values of chars // starting from $start until the end of $str function charsum($str, $start) { $sum = 0; for ($i = $start, $max = strlen($str); $i < $max; ++$i) { $sum += ord($str[$i]); } return $sum; } $str = 'hello world'; echo charsum($str, strpos($str, ' ')); $x = false; echo $str[$x]; // sh/b h
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
584 Warning: String offset cast occurred in /in/csmfq on line 18 h
Output for 5.4.5 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
584 Notice: String offset cast occurred in /in/csmfq on line 18 h
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 7.3.32 - 7.3.33
584h
Output for 5.4.0 - 5.4.4
584 Notice: String offset cast occured in /in/csmfq on line 18 h
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/csmfq on line 18
Process exited with code 255.

preferences:
258.26 ms | 401 KiB | 424 Q