3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array(1, 1, 2, 3, 5); foreach ($array as &$value) { $value *= $value; } unset($value); var_dump($array); $value = 42; var_dump($array); __exit_handler(); array_walk($array, function(&$value, &$key) { $value *= $value; }); var_dump($array);

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).
Note: hhvm uses a JIT which only kicks in after a few runs. Since we run scripts only once, hhvm always runs slower.

VersionSystem time (s)User time (s)Memory (MiB)
7.3.10.0090.00616.68
7.3.00.0040.00716.64
7.2.130.0110.00416.88
7.2.120.0030.00916.95
7.2.110.0100.00316.58
7.2.100.0000.01517.00
7.2.90.0140.00016.95
7.2.80.0080.00316.72
7.2.70.0110.00317.00
7.2.60.0080.00616.82
7.2.50.0080.00417.00
7.2.40.0070.00716.75
7.2.30.0060.00917.00
7.2.20.0080.00416.64
7.2.10.0110.00416.91
7.2.00.0100.00617.75
7.1.250.0090.00315.74
7.1.200.0000.01515.84
7.1.100.0000.01218.22
7.1.70.0000.01117.32
7.1.60.0120.00919.17
7.1.50.0000.01016.85
7.1.00.0070.03322.35
7.0.200.0030.00616.75
7.0.140.0100.06721.99
7.0.100.0070.05320.05
7.0.90.0100.08320.14
7.0.80.0030.08719.92
7.0.70.0100.08319.88
7.0.60.0170.07019.88
7.0.50.0130.03320.24
7.0.40.0100.04720.04
7.0.30.0030.08320.11
7.0.20.0100.08020.13
7.0.10.0100.05319.95
7.0.00.0170.06720.09
5.6.280.0000.07721.04
5.6.250.0100.05020.78
5.6.240.0030.07320.52
5.6.230.0070.08720.68
5.6.220.0070.08320.59
5.6.210.0070.05320.68
5.6.200.0130.08021.04
5.6.190.0130.07020.95
5.6.180.0000.09021.11
5.6.170.0070.08320.95
5.6.160.0030.09021.00
5.6.150.0070.08021.02
5.6.140.0070.04721.17
5.6.130.0070.06320.95
5.6.120.0100.08021.14
5.6.110.0070.07720.88
5.6.100.0000.07320.96
5.6.90.0100.06721.12
5.6.80.0100.07020.48
5.6.70.0030.07320.34
5.6.60.0030.07320.48
5.6.50.0070.07320.47
5.6.40.0030.08020.43
5.6.30.0070.03720.43
5.6.20.0030.04720.40
5.6.10.0100.07720.41
5.6.00.0030.08320.45
5.5.380.0030.08320.41
5.5.370.0130.07320.36
5.5.360.0070.06020.41
5.5.350.0070.08720.32
5.5.340.0170.07320.89
5.5.330.0070.08320.78
5.5.320.0200.06020.93
5.5.310.0100.08020.81
5.5.300.0100.08020.92
5.5.290.0100.06020.77
5.5.280.0100.08020.73
5.5.270.0130.07720.83
5.5.260.0070.06320.85
5.5.250.0100.06320.44
5.5.240.0070.04720.24
5.5.230.0100.07720.01
5.5.220.0130.07020.15
5.5.210.0130.06320.20
5.5.200.0070.07320.12
5.5.190.0070.05020.23
5.5.180.0070.04020.15
5.5.160.0070.08020.24
5.5.150.0030.07720.18
5.5.140.0100.08020.21
5.5.130.0070.07720.15
5.5.120.0030.07319.99
5.5.110.0100.07720.18
5.5.100.0030.08320.18
5.5.90.0030.08320.18
5.5.80.0130.07720.04
5.5.70.0070.04720.07
5.5.60.0100.07720.15
5.5.50.0070.04019.93
5.5.40.0030.08320.16
5.5.30.0030.04720.07
5.5.20.0200.04320.10
5.5.10.0000.06720.08
5.5.00.0070.06019.97
5.4.450.0070.05019.38
5.4.440.0030.05019.18
5.4.430.0200.06319.41
5.4.420.0100.06719.55
5.4.410.0000.07719.33
5.4.400.0070.06019.13
5.4.390.0100.06318.95
5.4.380.0000.08319.21
5.4.370.0000.04718.90
5.4.360.0130.06718.95
5.4.350.0070.04719.13
5.4.340.0070.04018.86
5.4.320.0030.05718.88
5.4.310.0070.07719.14
5.4.300.0070.07019.23
5.4.290.0100.06719.16
5.4.280.0070.06719.23
5.4.270.0100.06719.12
5.4.260.0100.06718.91
5.4.250.0130.07319.04
5.4.240.0100.04718.88
5.4.230.0000.08718.92
5.4.220.0070.07319.13
5.4.210.0070.08019.24
5.4.200.0130.06719.21
5.4.190.0070.08018.94
5.4.180.0100.07319.02
5.4.170.0130.06318.84
5.4.160.0230.04719.10
5.4.150.0130.07019.02
5.4.140.0030.04316.40
5.4.130.0100.04716.44
5.4.120.0100.06716.27
5.4.110.0030.07716.37
5.4.100.0000.06016.46
5.4.90.0000.07716.46
5.4.80.0070.06716.38
5.4.70.0070.07016.38
5.4.60.0100.06016.38
5.4.50.0100.07016.41
5.4.40.0000.06716.54
5.4.30.0130.06016.48
5.4.20.0130.07316.48
5.4.10.0100.04016.49
5.4.00.0030.07315.90
5.3.290.0070.04714.68
5.3.280.0030.07014.66
5.3.270.0100.07714.71
5.3.260.0000.08314.58
5.3.250.0070.08014.74
5.3.240.0030.07714.72
5.3.230.0130.04014.52
5.3.220.0030.04014.46
5.3.210.0030.06314.60
5.3.200.0030.07714.50
5.3.190.0100.07314.63
5.3.180.0070.07714.57
5.3.170.0100.07014.57
5.3.160.0100.07014.50
5.3.150.0070.07314.70
5.3.140.0130.07314.59
5.3.130.0100.08014.65
5.3.120.0100.04014.61
5.3.110.0170.06314.65
5.3.100.0070.07314.07
5.3.90.0170.06014.13
5.3.80.0070.04314.03
5.3.70.0100.07314.14
5.3.60.0030.07714.12
5.3.50.0100.07014.08
5.3.40.0100.07713.95
5.3.30.0070.07713.93
5.3.20.0170.06713.67
5.3.10.0100.06313.59
5.3.00.0070.04313.74
5.2.170.0030.06311.15
5.2.160.0000.06311.09
5.2.150.0030.05711.14
5.2.140.0000.06711.13
5.2.130.0200.04310.95
5.2.120.0000.06310.95
5.2.110.0070.06011.05
5.2.100.0030.06011.09
5.2.90.0030.06311.05
5.2.80.0170.05711.10
5.2.70.0100.05711.01
5.2.60.0130.05011.01
5.2.50.0070.04711.08
5.2.40.0030.06010.91
5.2.30.0070.06310.97
5.2.20.0100.05310.80
5.2.10.0100.05710.89
5.2.00.0130.02310.79
5.1.60.0070.04710.02
5.1.50.0070.0539.83
5.1.40.0070.0409.82
5.1.30.0170.04010.36
5.1.20.0070.02710.30
5.1.10.0000.0339.95
5.1.00.0030.04710.05
5.0.50.0070.0438.97
5.0.40.0030.0438.97
5.0.30.0070.0578.97
5.0.20.0030.0438.97
5.0.10.0030.0438.97
5.0.00.0000.0538.97
4.4.90.0030.0278.97
4.4.80.0030.0378.97
4.4.70.0070.0338.97
4.4.60.0030.0338.97
4.4.50.0000.0378.97
4.4.40.0100.0438.97
4.4.30.0030.0338.97
4.4.20.0070.0278.97
4.4.10.0030.0338.97
4.4.00.0000.0608.97
4.3.110.0070.0178.97
4.3.100.0070.0308.97
4.3.90.0030.0308.97
4.3.80.0070.0508.97
4.3.70.0030.0338.97
4.3.60.0030.0238.97
4.3.50.0030.0378.97
4.3.40.0030.0538.97
4.3.30.0000.0378.97
4.3.20.0000.0378.97
4.3.10.0000.0378.97
4.3.00.0070.0308.97