3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array(0,1,2); foreach ($x as $k => &$v) { print $k; if ($k == 0) { unset($x[1]); } foreach ($x as $y) { } } echo "\n"; $a = array(0,1,2); foreach ($a as $k1 => $v1) { print $k1; if ($k1 == 0) { unset($a[1]); } foreach ($a as $b) { } }

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)
8.3.60.0090.00616.50
8.3.50.0150.00321.93
8.3.40.0070.00718.62
8.3.30.0100.01019.17
8.3.20.0040.00420.25
8.3.10.0000.00923.65
8.3.00.0070.00021.04
8.2.180.0040.01118.41
8.2.170.0160.00322.96
8.2.160.0150.00620.30
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0140.00022.16
8.2.110.0090.00022.19
8.2.100.0040.00819.64
8.2.90.0000.00719.17
8.2.80.0030.00617.97
8.2.70.0090.00017.50
8.2.60.0080.00017.91
8.2.50.0050.00318.07
8.2.40.0030.00520.07
8.2.30.0040.00718.26
8.2.20.0080.00017.81
8.2.10.0040.00418.01
8.2.00.0000.01117.76
8.1.280.0070.00725.92
8.1.270.0000.00823.97
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.98
8.1.230.0080.00319.09
8.1.220.0030.00517.79
8.1.210.0090.00018.77
8.1.200.0030.00617.36
8.1.190.0040.00717.22
8.1.180.0000.00718.10
8.1.170.0040.00418.46
8.1.160.0080.00022.01
8.1.150.0090.00318.65
8.1.140.0040.00417.51
8.1.130.0030.00317.74
8.1.120.0030.00517.46
8.1.110.0050.00517.46
8.1.100.0040.00417.46
8.1.90.0020.00517.47
8.1.80.0040.00417.48
8.1.70.0050.00517.47
8.1.60.0000.00717.63
8.1.50.0060.00317.52
8.1.40.0000.00917.43
8.1.30.0040.00717.60
8.1.20.0000.00717.66
8.1.10.0080.00017.59
8.1.00.0000.00717.58
8.0.300.0000.00718.77
8.0.290.0000.00717.16
8.0.280.0000.00718.36
8.0.270.0000.00717.14
8.0.260.0060.00018.45
8.0.250.0000.00716.84
8.0.240.0020.00516.93
8.0.230.0030.00316.80
8.0.220.0040.00416.94
8.0.210.0000.00716.79
8.0.200.0040.00416.96
8.0.190.0070.00016.89
8.0.180.0030.00516.88
8.0.170.0000.00816.88
8.0.160.0000.00816.86
8.0.150.0040.00416.80
8.0.140.0040.00416.88
8.0.130.0030.00313.36
8.0.120.0040.00416.78
8.0.110.0070.00016.82
8.0.100.0000.00816.89
8.0.90.0050.00316.70
8.0.80.0140.00716.89
8.0.70.0070.00016.87
8.0.60.0040.00416.96
8.0.50.0000.00716.84
8.0.30.0070.01217.13
8.0.20.0130.00617.40
8.0.10.0000.00717.03
8.0.00.0120.00616.75
7.4.330.0030.00315.00
7.4.320.0040.00416.67
7.4.300.0070.00016.50
7.4.290.0070.00016.51
7.4.280.0000.00816.59
7.4.270.0000.00716.37
7.4.260.0040.00416.52
7.4.250.0030.00516.46
7.4.240.0040.00416.55
7.4.230.0030.00316.51
7.4.220.0030.01416.61
7.4.210.0080.00816.62
7.4.200.0050.00216.55
7.4.190.0000.00716.48
7.4.160.0030.01316.32
7.4.150.0100.01017.40
7.4.140.0120.00817.86
7.4.130.0180.01516.49
7.4.120.0120.00616.41
7.4.110.0140.00316.61
7.4.100.0040.01616.65
7.4.90.0100.00716.46
7.4.80.0090.01219.39
7.4.70.0120.00416.50
7.4.60.0130.00616.46
7.4.50.0080.00016.25
7.4.40.0100.00616.23
7.4.30.0140.00416.59
7.4.00.0040.01214.91
7.3.330.0050.00013.02
7.3.320.0020.00213.15
7.3.310.0000.00816.32
7.3.300.0000.00616.28
7.3.290.0070.00716.25
7.3.280.0090.00816.23
7.3.270.0060.01017.40
7.3.260.0110.00616.49
7.3.250.0110.00816.33
7.3.240.0110.00716.50
7.3.230.0140.00416.39
7.3.210.0100.00716.44
7.3.200.0120.00919.39
7.3.190.0000.01916.56
7.3.180.0060.00916.36
7.3.170.0040.01216.33
7.3.160.0100.00716.65
7.3.120.0060.00914.73
7.3.10.0030.00916.67
7.3.00.0020.01116.52
7.2.330.0120.00916.34
7.2.320.0100.00716.78
7.2.310.0060.01216.78
7.2.300.0160.00616.64
7.2.290.0180.00416.82
7.2.130.0060.00816.61
7.2.120.0080.00516.93
7.2.110.0030.01116.95
7.2.100.0030.00716.86
7.2.90.0070.00716.77
7.2.80.0040.00916.92
7.2.70.0050.00616.96
7.2.60.0040.01116.81
7.2.50.0060.00816.93
7.2.40.0030.00716.83
7.2.30.0070.00716.89
7.2.20.0050.00916.93
7.2.10.0090.00416.98
7.2.00.0030.01017.66
7.1.250.0040.00715.69
7.1.200.0060.00615.85
7.1.100.0120.00617.78
7.1.70.0040.00416.95
7.1.60.0070.01719.46
7.1.50.0040.02417.01
7.1.00.0000.08022.54
7.0.200.0040.00416.77
7.0.140.0070.07022.09
7.0.60.0070.07020.01
7.0.50.0100.08317.66
7.0.40.0000.04720.27
7.0.30.0230.08720.30
7.0.20.0230.08020.02
7.0.10.0000.04720.20
7.0.00.0070.08319.99
5.6.280.0000.07721.08
5.6.210.0100.07020.49
5.6.200.0100.08018.19
5.6.190.0070.05720.60
5.6.180.0170.06020.35
5.6.170.0370.06320.52
5.6.160.0100.03720.50
5.6.150.0000.04018.12
5.6.140.0100.08018.14
5.6.130.0130.07718.21
5.6.120.0170.06021.09
5.6.110.0070.06320.96
5.6.100.0100.06320.96
5.6.90.0130.06020.97
5.6.80.0100.07720.40
5.5.350.4100.04320.33
5.5.340.0030.06017.98
5.5.330.0100.04320.56
5.5.320.0270.06720.17
5.5.310.0300.05320.17
5.5.300.0100.03717.89
5.5.290.0100.05717.94
5.5.280.0200.07320.89
5.5.270.0030.04020.73
5.5.260.0030.05020.73
5.5.250.0070.07720.56
5.5.240.0030.07720.15
5.4.450.0200.06019.48
5.4.440.0300.07019.49
5.4.430.0230.05719.05
5.4.420.0230.05319.23
5.4.410.0230.05318.91
5.4.400.0170.04718.86
5.4.390.0230.05718.73
5.4.380.0170.05318.70
5.4.370.0130.05018.50
5.4.360.0200.04318.63
5.4.350.0170.05018.71
5.4.340.0170.05018.68
5.4.320.0060.03612.46
5.4.310.0080.03712.45
5.4.300.0060.03712.46
5.4.290.0130.05212.45
5.4.280.0140.04912.35
5.4.270.0080.04512.35
5.4.260.0060.03912.34
5.4.250.0060.04012.35
5.4.240.0140.05512.35
5.4.230.0150.05012.34
5.4.220.0160.05112.34
5.4.210.0090.06912.34
5.4.200.0100.06012.34
5.4.190.0090.03812.34
5.4.180.0090.03912.34
5.4.170.0070.03612.35
5.4.160.0120.03312.35
5.4.150.0060.03612.34
5.4.140.0060.03712.02
5.4.130.0080.04512.02
5.4.120.0110.06311.97
5.4.110.0090.05411.97
5.4.100.0090.05711.97
5.4.90.0080.03611.96
5.4.80.0060.03811.96
5.4.70.0050.03711.96
5.4.60.0040.04111.96
5.4.50.0060.04511.96
5.4.40.0100.03411.95
5.4.30.0170.08111.95
5.4.20.0150.10111.95
5.4.10.0100.04011.95
5.4.00.0140.06311.44
5.3.290.0090.03612.80
5.3.280.0120.05712.71
5.3.270.0110.05512.72
5.3.260.0150.06812.72
5.3.250.0080.05512.72
5.3.240.0070.04112.71
5.3.230.0090.04912.71
5.3.220.0100.05312.68
5.3.210.0090.04312.68
5.3.200.0060.04112.68
5.3.190.0090.04112.68
5.3.180.0060.04312.67
5.3.170.0110.03412.67
5.3.160.0070.03912.67
5.3.150.0060.04112.67
5.3.140.0060.05012.66
5.3.130.0070.04112.66
5.3.120.0080.04112.66
5.3.110.0050.04412.66
5.3.100.0060.04012.12
5.3.90.0080.03812.09
5.3.80.0080.04012.07
5.3.70.0070.04112.07
5.3.60.0100.03712.07
5.3.50.0100.03812.00
5.3.40.0120.03712.00
5.3.30.0100.03511.94
5.3.20.0060.03611.74
5.3.10.0090.03411.69
5.3.00.0100.03511.68
5.2.170.0050.0349.18
5.2.160.0060.0339.18
5.2.150.0070.0439.18
5.2.140.0120.0749.18
5.2.130.0050.0449.14
5.2.120.0080.0369.14
5.2.110.0050.0449.15
5.2.100.0160.0729.13
5.2.90.0110.0619.14
5.2.80.0130.0459.14
5.2.70.0040.0449.14
5.2.60.0080.0439.09
5.2.50.0080.0429.06
5.2.40.0110.0409.03
5.2.30.0070.0369.01
5.2.20.0080.0339.00
5.2.10.0080.0328.94
5.2.00.0060.0318.79
5.1.60.0150.0448.08
5.1.50.0060.0378.08
5.1.40.0110.0658.05
5.1.30.0100.0418.41
5.1.20.0050.0308.43
5.1.10.0100.0328.16
5.1.00.0100.0528.16
5.0.50.0050.0306.64
5.0.40.0060.0186.50
5.0.30.0020.0366.31
5.0.20.0090.0296.28
5.0.10.0090.0176.26
5.0.00.0050.0336.25
4.4.90.0040.0174.78
4.4.80.0050.0154.76
4.4.70.0050.0154.75
4.4.60.0050.0154.76
4.4.50.0030.0174.77
4.4.40.0060.0244.71
4.4.30.0020.0184.76
4.4.20.0050.0144.85
4.4.10.0040.0164.85
4.4.00.0040.0254.76
4.3.110.0040.0154.67
4.3.100.0030.0164.67
4.3.90.0050.0144.63
4.3.80.0030.0244.58
4.3.70.0060.0254.63
4.3.60.0070.0244.62
4.3.50.0090.0184.63
4.3.40.0090.0304.54
4.3.30.0030.0233.29
4.3.20.0030.0243.27
4.3.10.0020.0213.22
4.3.00.0030.0237.09

preferences:
43.56 ms | 401 KiB | 5 Q