3v4l.org

run code in 300+ PHP versions simultaneously
<?php final class ArrayUtils { private static $visited = []; private static $sum = 0; private static $data = []; public static function containsSum($data, $sum) { self::$data = $data; self::$sum = $sum; self::$visited = []; return self::found(); } private static function found() { if (! self::$data) { return false; } $value = array_pop(self::$data); if (isset(self::$visited[self::$sum - $value])) { return true; } self::$visited[$value] = true; return self::found(); } } $data = range(0, 49999); shuffle($data); var_dump(ArrayUtils::containsSum($data, 1220)); var_dump(ArrayUtils::containsSum($data, -7));

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)
7.2.110.2650.03335.87
7.2.100.4790.02635.88
7.2.90.6210.01736.01
7.2.80.6230.03037.68
7.2.70.0200.02338.70
7.2.60.0280.03138.55
7.2.50.0220.02938.34
7.2.40.0240.03138.74
7.2.30.0150.03038.59
7.2.20.0190.03738.50
7.2.10.0170.03438.52
7.2.00.0150.03438.66
7.1.230.2600.02635.16
7.1.220.3330.02635.15
7.1.210.4840.03234.70
7.1.200.6470.02735.17
7.1.190.0200.02337.63
7.1.180.0140.03137.56
7.1.170.0240.03437.46
7.1.160.0100.03737.67
7.1.150.0170.03337.36
7.1.140.0260.01937.45
7.1.130.0240.02437.68
7.1.120.0200.03237.78
7.1.110.0200.02337.46
7.1.100.0160.04337.47
7.1.90.0190.02337.69
7.1.80.0190.03437.39
7.1.70.0130.03437.76
7.1.60.0430.02355.71
7.1.50.0350.02655.87
7.1.40.0330.02755.46
7.1.30.0380.04155.55
7.1.20.0400.03155.59
7.1.10.0140.03737.35
7.1.00.0250.03837.56
5.6.380.0540.16969.68

preferences:
24.75 ms | 401 KiB | 5 Q