3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; foreach ($a as &$v) { echo $v; } unset($v);

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)
8.3.60.0130.00718.43
8.3.50.0080.01022.77
8.3.40.0150.00318.66
8.3.30.0070.00718.95
8.3.20.0000.00720.21
8.3.10.0040.00423.51
8.3.00.0040.00417.50
8.2.180.0070.00716.36
8.2.170.0070.00722.96
8.2.160.0150.00320.57
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0130.00726.16
8.2.120.0050.00221.00
8.2.110.0130.00320.98
8.2.100.0060.00617.78
8.2.90.0040.00418.03
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0050.00317.93
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0040.00417.93
8.2.20.0050.00317.67
8.2.10.0020.00518.06
8.2.00.0050.00217.64
8.1.280.0100.00725.92
8.1.270.0030.00523.91
8.1.260.0070.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00322.61
8.1.230.0000.01121.03
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00317.22
8.1.190.0080.00017.13
8.1.180.0040.00418.10
8.1.170.0090.00018.64
8.1.160.0030.00522.00
8.1.150.0000.00718.92
8.1.140.0000.00717.44
8.1.130.0040.00417.81
8.1.120.0070.00017.47
8.1.110.0040.00417.29
8.1.100.0070.00017.35
8.1.90.0050.00217.33
8.1.80.0000.00717.50
8.1.70.0030.00317.45
8.1.60.0060.00317.54
8.1.50.0030.00617.39
8.1.40.0060.00317.41
8.1.30.0000.00817.55
8.1.20.0000.00717.63
8.1.10.0070.00017.56
8.1.00.0000.00817.45
8.0.300.0040.00419.86
8.0.290.0080.00016.63
8.0.280.0030.00318.44
8.0.270.0000.00717.15
8.0.260.0000.00617.12
8.0.250.0000.00716.85
8.0.240.0000.00716.96
8.0.230.0000.00716.92
8.0.220.0000.00716.77
8.0.210.0030.00316.77
8.0.200.0030.00316.85
8.0.190.0050.00316.90
8.0.180.0070.00016.84
8.0.170.0040.00416.78
8.0.160.0070.00016.91
8.0.150.0040.00416.84
8.0.140.0110.00016.81
8.0.130.0070.00013.27
8.0.120.0060.00316.87
8.0.110.0000.00816.85
8.0.100.0040.00416.80
8.0.90.0040.00416.68
8.0.80.0130.00616.84
8.0.70.0020.00516.82
8.0.60.0000.00816.70
8.0.50.0000.00716.91
8.0.30.0060.01216.96
8.0.20.0090.01017.40
8.0.10.0070.00016.86
8.0.00.0120.00616.69
7.4.330.0000.00515.14
7.4.320.0030.00316.48
7.4.300.0000.00716.57
7.4.290.0030.00716.43
7.4.280.0000.00716.57
7.4.270.0040.00416.35
7.4.260.0000.00816.41
7.4.250.0000.00716.44
7.4.240.0020.00516.60
7.4.230.0070.00016.59
7.4.220.0030.00316.65
7.4.210.0000.01516.52
7.4.200.0000.00716.40
7.4.160.0100.00716.36
7.4.150.0180.00017.40
7.4.140.0080.01017.86
7.4.130.0030.01616.46
7.4.120.0080.00816.42
7.4.110.0160.00016.28
7.4.100.0070.01316.33
7.4.90.0070.01216.37
7.4.80.0090.00919.39
7.4.70.0090.01216.61
7.4.60.0090.00716.51
7.4.50.0040.00416.30
7.4.40.0110.01116.51
7.4.30.0100.00616.42
7.4.00.0090.00914.56
7.3.330.0000.00512.99
7.3.320.0000.00513.09
7.3.310.0020.00516.34
7.3.300.0000.00716.25
7.3.290.0100.00416.28
7.3.280.0080.00916.27
7.3.270.0190.00517.40
7.3.260.0040.01216.45
7.3.240.0190.00316.26
7.3.230.0030.01316.39
7.3.210.0080.00816.53
7.3.200.0100.00719.39
7.3.190.0060.01016.50
7.3.180.0090.00616.52
7.3.170.0030.01216.63
7.3.160.0150.00316.32
7.2.330.0140.00316.46
7.2.320.0100.01016.28
7.2.310.0060.01116.53
7.2.300.0060.01016.49
7.2.290.0110.01116.48
7.2.60.0120.00316.87
7.2.00.0000.01119.40
7.1.200.0030.01015.64
7.1.100.0110.00017.71
7.1.70.0070.00317.15
7.1.60.0070.01119.40
7.1.50.0280.00934.71
7.1.00.0000.08022.40
7.0.200.0060.00916.72
7.0.140.0070.07022.09
7.0.60.0070.03719.82
7.0.50.0030.08717.87
7.0.40.0070.09020.20
7.0.30.0300.06320.09
7.0.20.0130.05720.00
7.0.10.0030.06320.16
7.0.00.0030.04320.30
5.6.280.0070.07021.13
5.6.210.0100.05720.54
5.6.200.0100.07718.09
5.6.190.0070.08720.79
5.6.180.0270.04720.58
5.6.170.0100.04720.52
5.6.160.0070.04320.44
5.6.150.0070.08018.11
5.6.140.0100.04718.21
5.6.130.0100.05718.12
5.6.120.0070.07020.99
5.6.110.0170.07321.00
5.6.100.0200.07021.08
5.6.90.0000.04321.10
5.6.80.0000.04320.38
5.5.350.0030.07320.46
5.5.340.0030.08317.92
5.5.330.0100.06320.56
5.5.320.0030.04320.41
5.5.310.0370.08020.50
5.5.300.0070.04017.97
5.5.290.0000.06317.95
5.5.280.0070.08020.89
5.5.270.0100.06320.82
5.5.260.0100.08720.64
5.5.250.0070.06720.79
5.5.240.0370.06320.12
5.4.450.0230.03319.55
5.4.440.0430.04019.41
5.4.430.0100.05319.45
5.4.420.0700.04319.41
5.4.410.0370.05019.28
5.4.400.0570.03719.24
5.4.390.0400.03719.16
5.4.380.0300.06718.70
5.4.370.0430.07018.65
5.4.360.0300.05318.49
5.4.350.0370.05018.61
5.4.340.0430.05018.72
5.4.320.0090.03512.45
5.4.310.0100.04312.45
5.4.300.0060.03712.45
5.4.290.0050.04312.45
5.4.280.0080.03512.34
5.4.270.0040.04212.34
5.4.260.0040.04512.34
5.4.250.0050.03812.35
5.4.240.0090.03712.35
5.4.230.0080.04212.34
5.4.220.0040.03912.34
5.4.210.0060.03812.34
5.4.200.0050.04212.34
5.4.190.0070.03712.33
5.4.180.0050.04712.34
5.4.170.0090.03512.34
5.4.160.0080.03812.34
5.4.150.0060.04112.34
5.4.140.0040.04212.02
5.4.130.0050.03912.01
5.4.120.0060.03711.97
5.4.110.0070.03411.96
5.4.100.0060.03511.96
5.4.90.0060.04011.96
5.4.80.0060.04011.97
5.4.70.0040.03511.96
5.4.60.0020.04011.96
5.4.50.0100.03311.96
5.4.40.0090.03711.95
5.4.30.0060.03811.95
5.4.20.0030.04611.95
5.4.10.0060.03411.94
5.4.00.0040.03611.43
5.3.290.0080.04512.80
5.3.280.0080.03612.70
5.3.270.0060.03912.73
5.3.260.0070.04312.72
5.3.250.0100.03612.72
5.3.240.0070.03712.72
5.3.230.0070.03612.71
5.3.220.0090.04012.68
5.3.210.0020.04312.68
5.3.200.0060.04112.68
5.3.190.0080.04012.68
5.3.180.0090.03412.68
5.3.170.0100.03812.66
5.3.160.0080.03412.67
5.3.150.0080.03712.67
5.3.140.0040.04312.66
5.3.130.0070.04512.66
5.3.120.0050.04212.66
5.3.110.0070.04412.66
5.3.100.0070.03712.12
5.3.90.0150.03112.08
5.3.80.0070.04012.07
5.3.70.0060.04012.07
5.3.60.0070.04112.06
5.3.50.0080.04712.00
5.3.40.0080.04612.00
5.3.30.0080.03811.95
5.3.20.0060.04211.72
5.3.10.0080.03711.70
5.3.00.0090.03611.68
5.2.170.0070.0399.18
5.2.160.0070.0329.18
5.2.150.0080.0339.18
5.2.140.0070.0349.18
5.2.130.0060.0319.14
5.2.120.0050.0289.14
5.2.110.0080.0379.14
5.2.100.0070.0379.15
5.2.90.0090.0359.14
5.2.80.0040.0339.14
5.2.70.0050.0329.14
5.2.60.0040.0359.09
5.2.50.0060.0369.06
5.2.40.0060.0289.03
5.2.30.0100.0259.01
5.2.20.0040.0349.00
5.2.10.0050.0328.93
5.2.00.0070.0318.78
5.1.60.0080.0278.07
5.1.50.0070.0268.06
5.1.40.0080.0258.05
5.1.30.0040.0308.40
5.1.20.0120.0288.42
5.1.10.0050.0308.14
5.1.00.0050.0258.14
5.0.50.0040.0256.62
5.0.40.0040.0256.48
5.0.30.0050.0376.29
5.0.20.0040.0226.27
5.0.10.0070.0196.23
5.0.00.0040.0306.23
4.4.90.0020.0154.78
4.4.80.0010.0174.75
4.4.70.0040.0204.75
4.4.60.0030.0164.75
4.4.50.0040.0224.77
4.4.40.0010.0344.71
4.4.30.0060.0214.76
4.4.20.0050.0164.85
4.4.10.0020.0204.85
4.4.00.0020.0294.76
4.3.110.0060.0124.67
4.3.100.0040.0164.66
4.3.90.0070.0104.63
4.3.80.0060.0294.58
4.3.70.0050.0164.63
4.3.60.0020.0164.63
4.3.50.0040.0164.63
4.3.40.0050.0314.54
4.3.30.0020.0223.29
4.3.20.0020.0273.26
4.3.10.0030.0213.22
4.3.00.0100.01715.97

preferences:
45.64 ms | 401 KiB | 5 Q