3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B extends A { const A = 'a'; } class C extends B { const B = 'b'; } abstract class A { private static $constants = array(); public static function get() { self::resolve(); } private static function resolve() { if (empty() $r = new ReflectionClass(get_called_class()); var_dump($r->getConstants()); } } $arr = array(false); var_dump(in_array(false, $arr, true));

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)
5.4.170.0160.04314.52
5.4.160.0100.04914.52
5.4.150.0090.04514.50
5.4.140.0050.04413.47
5.4.130.0090.04013.45
5.4.120.0110.04713.50
5.4.110.0100.04613.41
5.4.100.0060.05213.48
5.4.90.0070.04913.44
5.4.80.0080.04713.49
5.4.70.0120.04913.46
5.4.60.0120.05613.48
5.4.50.0130.05413.47
5.4.40.0110.05413.39
5.4.30.0040.04913.47
5.4.20.0110.04313.43
5.4.10.0090.04513.38
5.4.00.0090.04812.90
5.3.270.0120.05313.36
5.3.260.0130.04613.36
5.3.250.0090.04813.36
5.3.240.0080.04513.39
5.3.230.0110.04813.36
5.3.220.0130.04413.33
5.3.210.0080.04813.38
5.3.200.0070.05313.31
5.3.190.0120.04113.35
5.3.180.0080.05013.32
5.3.170.0080.05313.30
5.3.160.0120.04513.34
5.3.150.0080.04913.33
5.3.140.0150.05613.33
5.3.130.0120.05213.33
5.3.120.0090.05413.29
5.3.110.0080.04713.35
5.3.100.0100.04112.82
5.3.90.0120.05012.75
5.3.80.0060.04612.77
5.3.70.0080.04612.80
5.3.60.0080.05212.73
5.3.50.0080.05112.68
5.3.40.0080.05212.70
5.3.30.0060.04212.64
5.3.20.0070.04212.48
5.3.10.0060.04312.39
5.3.00.0090.04312.36

preferences:
138.41 ms | 1394 KiB | 7 Q