3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = array_reduce(array({'a':1,'b':2}), function ($cur, $x) { $cur[$x] = $x; return $cur; }, array()); var_dump($result);

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)
5.4.260.0030.05718.98
5.4.250.0100.05018.75
5.4.240.0130.04718.75
5.4.230.0100.04718.81
5.4.220.0100.05019.07
5.4.210.0100.05318.96
5.4.200.0130.05718.99
5.4.190.0030.05318.77
5.4.180.0130.05018.91
5.4.170.0170.05318.73
5.4.160.0000.06718.63
5.4.150.0030.06018.87
5.4.140.0030.05316.43
5.4.130.0130.04316.39
5.4.120.0030.05316.40
5.4.110.0130.04316.39
5.4.100.0100.04716.47
5.4.90.0000.05316.34
5.4.80.0070.04316.51
5.4.70.0030.05316.38
5.4.60.0130.06716.43
5.4.50.0130.04016.30
5.4.40.0100.04316.34
5.4.30.0100.04716.33
5.4.20.0100.04716.46
5.4.10.0030.05316.43
5.4.00.0070.05315.88
5.3.280.0000.05714.47
5.3.270.0030.05714.45
5.3.260.0100.07014.66
5.3.250.0100.05314.38
5.3.240.0070.05014.48
5.3.230.0030.05714.30
5.3.220.0130.04714.34
5.3.210.0100.05314.41
5.3.200.0070.04714.44
5.3.190.0070.05014.61
5.3.180.0030.05314.72
5.3.170.0200.05314.57
5.3.160.0070.05314.56
5.3.150.0070.05014.33
5.3.140.0100.04714.55
5.3.130.0000.05714.56
5.3.120.0130.04314.56
5.3.110.0130.04314.54
5.3.100.0100.06313.96
5.3.90.0070.05713.90
5.3.80.0030.05014.17
5.3.70.0000.05314.07
5.3.60.0100.04714.04
5.3.50.0070.04713.99
5.3.40.0070.05713.93
5.3.30.0100.04313.60
5.3.20.0070.04713.73
5.3.10.0030.05013.61
5.3.00.0100.07013.66
5.2.170.0030.04311.13
5.2.160.0070.03711.04
5.2.150.0030.04311.16
5.2.140.0000.04711.29
5.2.130.0030.04011.25
5.2.120.0070.03710.98
5.2.110.0070.03711.20
5.2.100.0030.04011.25
5.2.90.0000.05010.86
5.2.80.0070.03710.92
5.2.70.0100.05311.08
5.2.60.0070.04011.04
5.2.50.0070.03711.03
5.2.40.0070.03711.00
5.2.30.0070.04010.96
5.2.20.0070.04710.96
5.2.10.0000.04010.94
5.2.00.0070.04310.79
5.1.60.0070.03010.01
5.1.50.0070.03010.09
5.1.40.0030.0339.87
5.1.30.0130.02710.23
5.1.20.0000.04010.53
5.1.10.0070.04310.25
5.1.00.0030.0379.97
5.0.50.0030.0278.51
5.0.40.0000.0438.29
5.0.30.0030.0438.31
5.0.20.0070.0308.16
5.0.10.0000.0308.14
5.0.00.0000.0437.98
4.4.90.0070.0276.50
4.4.80.0070.0176.50
4.4.70.0030.0206.50
4.4.60.0000.0236.50
4.4.50.0070.0176.50
4.4.40.0000.0376.50
4.4.30.0030.0236.50
4.4.20.0070.0176.50
4.4.10.0070.0176.50
4.4.00.0070.0306.50
4.3.110.0000.0236.50
4.3.100.0030.0236.50
4.3.90.0030.0206.50
4.3.80.0030.0306.46
4.3.70.0000.0236.42
4.3.60.0030.0206.42
4.3.50.0030.0206.42
4.3.40.0030.0306.42
4.3.30.0000.0236.69
4.3.20.0000.0236.69
4.3.10.0030.0236.69
4.3.00.0070.0276.83

preferences:
139.79 ms | 1394 KiB | 7 Q