3v4l.org

run code in 300+ PHP versions simultaneously
<?php $variable = [1,2,3,4]; foreach ($variable as $key => &$value) $value ++; var_dump($variable); $variable = [1,2,3,4]; foreach ($variable as $key => &$value) $value ++; var_dump($variable);

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)
8.3.60.0110.00416.63
8.3.50.0120.00522.11
8.3.40.0120.00318.63
8.3.30.0110.00319.10
8.3.20.0000.00720.31
8.3.10.0040.00423.53
8.3.00.0040.00419.43
8.2.180.0040.01116.63
8.2.170.0130.00722.96
8.2.160.0030.01020.19
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00321.10
8.2.110.0030.00622.28
8.2.100.0090.00618.03
8.2.90.0030.00619.18
8.2.80.0030.00617.97
8.2.70.0040.00417.50
8.2.60.0050.00317.93
8.2.50.0060.00318.07
8.2.40.0080.00018.34
8.2.30.0000.00718.29
8.2.20.0040.00417.84
8.2.10.0040.00418.02
8.2.00.0030.00517.67
8.1.280.0100.01025.92
8.1.270.0060.00323.83
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0000.01119.09
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0090.00017.38
8.1.190.0060.00317.35
8.1.180.0030.00518.10
8.1.170.0030.00618.64
8.1.160.0000.00722.01
8.1.150.0040.00418.53
8.1.140.0000.00717.45
8.1.130.0030.00317.81
8.1.120.0000.00717.46
8.1.110.0050.00317.34
8.1.100.0050.00217.47
8.1.90.0000.00717.40
8.1.80.0040.00417.44
8.1.70.0030.00317.39
8.1.60.0030.00517.48
8.1.50.0000.00817.48
8.1.40.0000.00717.51
8.1.30.0000.00817.61
8.1.20.0040.00417.57
8.1.10.0000.00717.48
8.1.00.0050.00517.36
8.0.300.0000.00718.77
8.0.290.0030.00616.63
8.0.280.0000.00718.46
8.0.270.0000.00717.24
8.0.260.0020.00517.21
8.0.250.0000.00716.86
8.0.240.0060.00016.96
8.0.230.0000.00716.85
8.0.220.0000.00716.82
8.0.210.0050.00316.80
8.0.200.0000.00816.97
8.0.190.0030.00517.01
8.0.180.0040.00416.92
8.0.170.0040.00416.96
8.0.160.0030.00316.89
8.0.150.0000.00716.71
8.0.140.0030.00316.89
8.0.130.0030.00313.29
8.0.120.0040.00416.84
8.0.110.0040.00416.82
8.0.100.0040.00416.84
8.0.90.0000.00716.75
8.0.80.0090.00616.87
8.0.70.0020.00516.75
8.0.60.0040.00416.91
8.0.50.0000.00816.88
8.0.30.0130.01017.10
8.0.20.0060.01517.40
8.0.10.0040.00416.91
8.0.00.0100.00816.86
7.4.330.0000.00515.15
7.4.320.0060.00016.39
7.4.300.0060.00016.57
7.4.290.0070.00016.58
7.4.280.0040.00416.40
7.4.270.0030.00316.58
7.4.260.0040.00416.57
7.4.250.0040.00416.46
7.4.240.0020.00516.57
7.4.230.0030.00316.59
7.4.220.0060.01316.57
7.4.210.0130.00716.41
7.4.200.0000.00716.57
7.4.160.0130.00916.31
7.4.150.0160.00917.40
7.4.140.0070.01217.86
7.4.130.0090.00716.41
7.4.120.0150.00216.50
7.4.110.0060.01116.30
7.4.100.0120.00616.32
7.4.90.0110.00816.61
7.4.80.0140.01119.39
7.4.70.0040.01216.51
7.4.60.0130.00716.41
7.4.50.0060.00316.30
7.4.40.0190.00316.47
7.4.30.0120.00416.64
7.4.00.0120.00314.75
7.3.330.0060.00013.04
7.3.320.0050.00012.97
7.3.310.0040.00416.39
7.3.300.0000.00716.30
7.3.290.0070.01016.28
7.3.280.0100.00716.17
7.3.270.0090.00917.40
7.3.260.0100.00716.57
7.3.250.0090.01116.59
7.3.240.0080.00816.52
7.3.230.0140.00716.39
7.3.210.0100.00716.33
7.3.200.0080.00819.39
7.3.190.0090.01216.29
7.3.180.0090.01216.61
7.3.170.0120.00616.53
7.3.160.0130.00316.62
7.3.120.0000.01414.79
7.3.10.0100.00516.46
7.3.00.0110.00716.67
7.2.330.0060.01316.59
7.2.320.0170.00016.63
7.2.310.0130.00716.45
7.2.300.0130.00316.56
7.2.290.0040.01216.40
7.2.130.0020.01216.58
7.2.120.0110.00716.39
7.2.110.0110.00516.57
7.2.100.0070.00916.60
7.2.90.0110.00816.69
7.2.80.0050.00916.75
7.2.70.0100.01016.54
7.2.60.0110.00616.84
7.2.50.0130.01016.77
7.2.40.0100.00816.65
7.2.30.0080.00816.54
7.2.20.0070.00916.78
7.2.10.0110.00616.49
7.2.00.0090.00917.39
7.1.250.0040.00915.64
7.1.200.0110.00715.65
7.1.100.0100.00318.09
7.1.70.0000.00817.30
7.1.60.0070.01419.70
7.1.50.0130.01016.83
7.1.00.0070.07322.57
7.0.200.0070.00416.77
7.0.140.0070.07022.18
7.0.60.0130.08019.93
7.0.50.0100.06317.88
7.0.40.0070.09020.05
7.0.30.0300.06720.00
7.0.20.0170.05320.30
7.0.10.0070.08320.00
7.0.00.0030.09020.11
5.6.280.0030.07320.89
5.6.210.0170.05720.54
5.6.200.0130.07318.13
5.6.190.0030.09720.39
5.6.180.0130.04320.56
5.6.170.0200.05320.71
5.6.160.0170.07020.61
5.6.150.0030.04018.18
5.6.140.0100.06718.22
5.6.130.0070.08318.16
5.6.120.0030.05721.14
5.6.110.0130.03720.89
5.6.100.0070.07320.97
5.6.90.0100.05321.03
5.6.80.0030.04020.28
5.5.350.4130.04320.39
5.5.340.0070.08017.96
5.5.330.0070.04020.57
5.5.320.0130.04720.27
5.5.310.0330.07320.41
5.5.300.0070.04318.01
5.5.290.0100.06317.98
5.5.280.0100.05020.66
5.5.270.0030.04720.75
5.5.260.0170.07020.75
5.5.250.0130.06720.58
5.5.240.0100.04720.17
5.4.450.0970.03719.21
5.4.440.1230.04719.54
5.4.430.0370.07319.48
5.4.420.0530.02719.41
5.4.410.0200.04343.94
5.4.400.0100.04743.92
5.4.390.0330.03343.92
5.4.380.0200.04718.66
5.4.370.0200.05018.48
5.4.360.0100.05318.68
5.4.350.0170.05018.69
5.4.340.0170.05018.48
5.4.320.0080.05112.45
5.4.310.0030.04112.45
5.4.300.0060.03712.46
5.4.290.0100.03612.46
5.4.280.0080.03812.35
5.4.270.0070.03612.35
5.4.260.0050.03812.35
5.4.250.0020.04012.35
5.4.240.0070.03712.35
5.4.230.0070.03912.34
5.4.220.0050.03612.34
5.4.210.0050.03712.34
5.4.200.0060.04312.34
5.4.190.0080.03312.34
5.4.180.0060.03512.34
5.4.170.0080.03312.35
5.4.160.0110.03312.34
5.4.150.0060.03612.34
5.4.140.0110.03612.03
5.4.130.0060.03512.01
5.4.120.0030.03811.97
5.4.110.0080.03311.97
5.4.100.0060.03411.97
5.4.90.0070.03711.96
5.4.80.0040.04111.96
5.4.70.0060.03511.96
5.4.60.0070.03411.96
5.4.50.0050.03611.96
5.4.40.0090.03111.95
5.4.30.0050.03611.95
5.4.20.0050.03611.95
5.4.10.0000.04311.94
5.4.00.0030.03911.43
5.3.290.0050.04012.80
5.3.280.0030.04312.71
5.3.270.0060.04012.73
5.3.260.0060.03912.72
5.3.250.0050.03612.72
5.3.240.0070.03812.72
5.3.230.0060.03712.70
5.3.220.0070.04212.68
5.3.210.0060.04712.68
5.3.200.0070.04012.68
5.3.190.0090.03812.68
5.3.180.0090.03312.67
5.3.170.0080.03812.67
5.3.160.0040.03812.67
5.3.150.0090.04012.68
5.3.140.0100.03612.66
5.3.130.0070.04212.66
5.3.120.0070.03812.66
5.3.110.0080.03712.65
5.3.100.0070.03812.12
5.3.90.0040.03812.09
5.3.80.0070.03512.07
5.3.70.0050.04512.07
5.3.60.0050.04012.06
5.3.50.0070.03612.00
5.3.40.0070.03512.00
5.3.30.0070.03411.95
5.3.20.0080.03711.72
5.3.10.0040.03611.70
5.3.00.0050.03711.68
5.2.170.0040.0319.18
5.2.160.0020.0319.18
5.2.150.0040.0319.18
5.2.140.0060.0289.18
5.2.130.0030.0309.13
5.2.120.0050.0289.14
5.2.110.0080.0269.14
5.2.100.0040.0299.14
5.2.90.0070.0269.14
5.2.80.0040.0309.14
5.2.70.0030.0319.14
5.2.60.0060.0359.09
5.2.50.0040.0309.06
5.2.40.0040.0299.03
5.2.30.0040.0319.01
5.2.20.0070.0269.00
5.2.10.0050.0278.93
5.2.00.0050.0368.78
5.1.60.0030.0298.07
5.1.50.0050.0238.06
5.1.40.0030.0258.05
5.1.30.0070.0268.40
5.1.20.0050.0258.42
5.1.10.0030.0268.14
5.1.00.0080.0298.14
5.0.50.0070.0236.62
5.0.40.0040.0186.48
5.0.30.0040.0306.29
5.0.20.0030.0196.27
5.0.10.0020.0216.23
5.0.00.0040.0306.23
4.4.90.0040.0144.78
4.4.80.0060.0184.76
4.4.70.0020.0164.75
4.4.60.0040.0174.75
4.4.50.0030.0164.77
4.4.40.0020.0264.70
4.4.30.0020.0204.75
4.4.20.0050.0214.84
4.4.10.0070.0224.85
4.4.00.0030.0314.75
4.3.110.0030.0214.67
4.3.100.0050.0134.66
4.3.90.0040.0134.63
4.3.80.0030.0264.58
4.3.70.0020.0154.63
4.3.60.0020.0214.63
4.3.50.0010.0174.63
4.3.40.0040.0304.53
4.3.30.0030.0193.29
4.3.20.0010.0163.26
4.3.10.0030.0143.22
4.3.00.0070.01743.91

preferences:
42.15 ms | 401 KiB | 5 Q