3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 'a', 'b', 'c' ]; $b = &z($a); foreach($b as &$x) { $x .= 'q'; } print_r($a); function &z($a) { return $a; }

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)
8.3.60.0100.01016.25
8.3.50.0180.00922.05
8.3.40.0110.00418.71
8.3.30.0060.00918.84
8.3.20.0070.00020.04
8.3.10.0040.00423.66
8.3.00.0080.00020.96
8.2.180.0190.00016.50
8.2.170.0070.01122.96
8.2.160.0070.01320.35
8.2.150.0000.00724.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00819.49
8.2.110.0090.00022.25
8.2.100.0110.00317.84
8.2.90.0000.00819.21
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0080.00319.95
8.2.30.0070.00018.23
8.2.20.0040.00417.73
8.2.10.0070.00017.98
8.2.00.0050.00319.58
8.1.280.0100.00725.92
8.1.270.0060.01023.92
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0040.00423.88
8.1.230.0090.00317.70
8.1.220.0090.00017.77
8.1.210.0040.00418.77
8.1.200.0000.00917.48
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00918.51
8.1.160.0000.00822.00
8.1.150.0040.00418.62
8.1.140.0000.00717.42
8.1.130.0050.00217.86
8.1.120.0060.00317.42
8.1.110.0070.00017.39
8.1.100.0000.00717.46
8.1.90.0030.00317.45
8.1.80.0040.00417.46
8.1.70.0040.00417.41
8.1.60.0000.00817.53
8.1.50.0040.00417.51
8.1.40.0040.00417.49
8.1.30.0000.00817.61
8.1.20.0040.00417.65
8.1.10.0040.00417.40
8.1.00.0030.00617.38
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0080.00018.33
8.0.270.0030.00317.15
8.0.260.0000.00617.19
8.0.250.0000.00716.95
8.0.240.0000.00716.96
8.0.230.0020.00516.86
8.0.220.0020.00516.74
8.0.210.0070.00016.87
8.0.200.0040.00416.97
8.0.190.0030.00316.94
8.0.180.0040.00716.96
8.0.170.0040.00416.88
8.0.160.0030.00316.87
8.0.150.0000.00716.80
8.0.140.0040.00416.86
8.0.130.0000.00513.38
8.0.120.0040.00416.85
8.0.110.0070.00016.90
8.0.100.0040.00416.79
8.0.90.0040.00416.91
8.0.80.0040.01716.85
8.0.70.0040.00416.82
8.0.60.0040.00416.75
8.0.50.0040.00416.76
8.0.30.0070.01216.99
8.0.20.0050.01317.40
8.0.10.0040.00417.00
8.0.00.0090.00916.79
7.4.330.0030.00315.00
7.4.320.0000.00616.54
7.4.300.0000.00616.57
7.4.290.0070.00016.44
7.4.280.0030.00516.49
7.4.270.0040.00416.59
7.4.260.0000.00716.58
7.4.250.0040.00416.59
7.4.240.0020.00516.56
7.4.230.0070.00016.29
7.4.220.0060.01116.54
7.4.210.0080.00716.62
7.4.200.0030.00316.48
7.4.160.0070.01016.49
7.4.150.0110.00617.40
7.4.140.0090.01017.86
7.4.130.0120.00516.55
7.4.120.0050.01216.48
7.4.110.0060.00916.49
7.4.100.0170.00016.49
7.4.90.0100.01016.60
7.4.80.0180.00419.39
7.4.70.0030.01316.43
7.4.60.0110.00416.45
7.4.50.0020.00216.62
7.4.40.0000.01616.64
7.4.30.0030.01216.46
7.4.00.0000.01515.10
7.3.330.0030.00313.26
7.3.320.0020.00213.14
7.3.310.0040.00416.35
7.3.300.0000.00716.15
7.3.290.0060.01216.28
7.3.280.0110.00616.30
7.3.270.0100.00717.40
7.3.260.0170.00316.54
7.3.250.0090.00816.62
7.3.240.0070.01016.57
7.3.230.0140.00316.60
7.3.210.0110.00616.47
7.3.200.0060.01019.39
7.3.190.0100.01016.58
7.3.180.0110.01116.43
7.3.170.0060.01216.63
7.3.160.0060.00916.51
7.3.120.0060.01014.83
7.3.110.0060.01014.64
7.3.100.0090.00614.84
7.3.90.0110.00614.94
7.3.80.0060.00914.95
7.3.70.0060.00714.86
7.3.60.0080.00814.99
7.3.50.0040.01214.78
7.3.40.0050.00914.69
7.3.30.0050.01014.70
7.3.20.0090.00616.50
7.3.10.0050.00816.47
7.3.00.0110.00516.58
7.2.330.0090.00916.63
7.2.320.0090.00916.58
7.2.310.0100.00716.54
7.2.300.0030.01316.62
7.2.290.0060.01016.67
7.2.240.0060.00815.10
7.2.230.0040.01115.18
7.2.220.0100.00715.02
7.2.210.0060.00715.12
7.2.200.0070.00814.95
7.2.190.0070.00714.82
7.2.180.0080.00914.87
7.2.170.0060.01115.00
7.2.160.0050.01214.98
7.2.150.0030.01017.03
7.2.140.0100.00616.94
7.2.130.0060.01116.84
7.2.120.0050.00616.92
7.2.110.0040.01316.95
7.2.100.0060.00617.00
7.2.90.0060.00716.99
7.2.80.0070.00916.93
7.2.70.0020.01016.92
7.2.60.0060.00816.86
7.2.50.0050.00716.88
7.2.40.0060.00816.84
7.2.30.0020.01416.83
7.2.20.0050.01116.77
7.2.10.0030.01116.80
7.2.00.0070.00817.54
7.1.330.0040.01115.77
7.1.320.0040.00615.84
7.1.310.0060.00715.79
7.1.300.0050.01015.73
7.1.290.0100.00515.88
7.1.280.0060.00615.70
7.1.270.0020.01315.96
7.1.260.0070.00515.58
7.1.250.0050.01015.68
7.1.200.0030.00615.79
7.1.100.0090.00318.29
7.1.70.0000.01017.24
7.1.60.0070.01819.70
7.1.50.0060.00617.05
7.1.00.0070.07322.36
7.0.200.0020.00516.94
7.0.140.0000.07722.11
7.0.60.0170.08720.00
7.0.50.0030.06717.86
7.0.40.0130.08319.96
7.0.30.0270.08020.06
7.0.20.0330.05020.01
7.0.10.0070.05020.23
7.0.00.0100.08020.25
5.6.280.0100.06321.10
5.6.210.0030.04720.63
5.6.200.0070.04318.29
5.6.190.0030.07320.61
5.6.180.3530.04320.48
5.6.170.0300.03320.56
5.6.160.0070.07720.71
5.6.150.0130.03018.29
5.6.140.0170.06718.21
5.6.130.0100.08018.16
5.6.120.0100.04721.07
5.6.110.0030.09020.98
5.6.100.0170.07021.02
5.6.90.0070.08320.97
5.6.80.0070.06720.43
5.5.350.0200.03020.50
5.5.340.0070.08018.01
5.5.330.0100.06320.31
5.5.320.0270.05020.25
5.5.310.0330.06720.43
5.5.300.0070.07017.94
5.5.290.0130.07017.99
5.5.280.0030.04320.69
5.5.270.0070.08320.73
5.5.260.0000.09020.78
5.5.250.0030.07720.68
5.5.240.0270.05020.19
5.4.450.0200.04321.12
5.4.440.0400.04320.00
5.4.430.0530.03719.76
5.4.420.0470.03719.51
5.4.410.0570.05019.18
5.4.400.0630.04319.91
5.4.390.0230.04719.20
5.4.380.0970.05318.61
5.4.370.0800.05718.68
5.4.360.1000.05318.47
5.4.350.0970.05718.73
5.4.340.0670.07018.68
5.4.320.0050.04312.50
5.4.310.0060.03812.50
5.4.300.0070.03612.50
5.4.290.0100.04112.50
5.4.280.0070.03912.40
5.4.270.0070.03612.40
5.4.260.0070.03712.39
5.4.250.0090.03612.40
5.4.240.0080.03512.39
5.4.230.0070.03812.39
5.4.220.0090.03412.39
5.4.210.0090.03312.39
5.4.200.0070.03812.39
5.4.190.0050.03712.39
5.4.180.0060.03812.38
5.4.170.0060.03612.39
5.4.160.0050.03812.39
5.4.150.0060.03612.39
5.4.140.0030.04012.07
5.4.130.0090.03512.06
5.4.120.0060.03512.02
5.4.110.0060.03612.02
5.4.100.0040.03712.01
5.4.90.0070.03612.01
5.4.80.0040.03912.02
5.4.70.0050.03612.01
5.4.60.0050.03612.01
5.4.50.0070.03512.01
5.4.40.0070.03312.00
5.4.30.0090.03311.99
5.4.20.0080.03312.00
5.4.10.0040.04012.00
5.4.00.0080.03811.48
5.3.290.0050.03912.80
5.3.280.0090.03512.71
5.3.270.0070.03812.72
5.3.260.0060.04512.71
5.3.250.0080.03912.72
5.3.240.0040.04012.72
5.3.230.0070.03812.71
5.3.220.0050.04212.68
5.3.210.0080.04012.68
5.3.200.0070.03612.68
5.3.190.0070.03612.68
5.3.180.0100.03412.68
5.3.170.0150.04512.67
5.3.160.0070.03812.67
5.3.150.0050.03912.68
5.3.140.0110.03212.66
5.3.130.0060.04012.65
5.3.120.0100.03712.66
5.3.110.0080.03712.65
5.3.100.0060.03612.12
5.3.90.0060.04112.09
5.3.80.0080.03612.08
5.3.70.0070.03712.07
5.3.60.0060.04112.06
5.3.50.0100.03212.00
5.3.40.0080.03412.00
5.3.30.0060.03311.95
5.3.20.0040.03711.72
5.3.10.0070.03311.70
5.3.00.0100.03211.68
5.2.170.0050.0309.18
5.2.160.0030.0309.18
5.2.150.0030.0319.18
5.2.140.0030.0329.18
5.2.130.0050.0289.14
5.2.120.0010.0319.14
5.2.110.0040.0299.15
5.2.100.0040.0299.14
5.2.90.0050.0299.14
5.2.80.0040.0319.14
5.2.70.0060.0299.14
5.2.60.0070.0289.10
5.2.50.0050.0309.05
5.2.40.0040.0309.03
5.2.30.0040.0309.01
5.2.20.0050.0309.00
5.2.10.0060.0278.92
5.2.00.0040.0308.78
5.1.60.0020.0278.07
5.1.50.0040.0258.06
5.1.40.0080.0218.05
5.1.30.0040.0298.40
5.1.20.0010.0298.42
5.1.10.0030.0278.14
5.1.00.0030.0268.14
5.0.50.0030.0226.62
5.0.40.0090.0226.48
5.0.30.0050.0386.29
5.0.20.0110.0196.26
5.0.10.0040.0256.24
5.0.00.0040.0306.23
4.4.90.0030.0154.78
4.4.80.0020.0194.75
4.4.70.0020.0204.75
4.4.60.0050.0164.75
4.4.50.0020.0154.77
4.4.40.0020.0254.71
4.4.30.0030.0144.76
4.4.20.0040.0204.85
4.4.10.0030.0194.85
4.4.00.0020.0324.76
4.3.110.0040.0144.67
4.3.100.0060.0164.66
4.3.90.0040.0134.64
4.3.80.0030.0304.59
4.3.70.0060.0214.63
4.3.60.0030.0154.63
4.3.50.0070.0264.62
4.3.40.0050.0214.54
4.3.30.0020.0193.29
4.3.20.0030.0153.26
4.3.10.0030.0163.22
4.3.00.0030.01316.54

preferences:
40.72 ms | 401 KiB | 5 Q