3v4l.org

run code in 300+ PHP versions simultaneously
<?php function callWithArgs(callable $callback, ...$args) { return function(...$params) use($callback, $args) { $args = array_merge($params, $args); return $callback(...$args); } } $t = callWithArgs('substr', 0, 5); $string = 'Lorem ipsum dolor simet'; var_dump( $t($string) ); // "Lorem"

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)
7.0.20.0330.07020.12
7.0.10.0030.09020.09
7.0.00.0130.07720.16
5.6.170.0200.07720.58
5.6.160.0000.04320.61
5.6.150.0070.04718.19
5.6.140.0000.04018.11
5.6.130.0030.05018.13
5.6.120.0100.08021.04
5.6.110.0100.04720.99
5.6.100.0130.05320.97
5.6.90.0030.04021.03
5.6.80.0100.07720.38
5.5.310.0500.05720.36
5.5.300.0070.03718.07
5.5.290.0030.08017.95
5.5.280.0070.08320.88
5.5.270.0100.07720.67
5.5.260.0000.04720.60
5.5.250.0170.07320.68
5.5.240.0370.05720.29

preferences:
142.26 ms | 1394 KiB | 7 Q