3v4l.org

run code in 300+ PHP versions simultaneously
<?php class T { public $a = string_to_ascii("Perkele") function string_to_ascii($string) { $ascii = NULL; for ($i = 0; $i < strlen($string); $i++) { $ascii += ord($string[$i]); } return($ascii); } } $t = new T(); var_dump($t->a);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.0.20.0170.04020.33
7.0.10.0000.05020.22
7.0.00.0130.05020.33
5.6.170.0270.08020.49
5.6.160.0100.04020.54
5.6.150.0030.05718.18
5.6.140.0030.04018.30
5.6.130.0130.08318.14
5.6.120.0000.04321.02
5.6.110.0070.05320.98
5.6.100.0030.05320.99
5.6.90.0000.04321.09
5.6.80.0070.08020.50
5.5.310.0230.07720.25
5.5.300.0070.03718.04
5.5.290.0070.08718.07
5.5.280.0130.08020.76
5.5.270.0000.04320.75
5.5.260.0100.07320.75
5.5.250.0070.08320.71
5.5.240.0170.07320.23

preferences:
147.45 ms | 1394 KiB | 7 Q