3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dataset = array(0 => "one", 1 => "two"); reset($dataset); while ($a = current($dataset)) { var_dump($a); next($dataset); if ($a == "one") { $dataset[0] = "three"; } } var_dump($dataset);

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)
8.3.60.0140.00318.56
8.3.50.0080.00721.98
8.3.40.0000.01418.58
8.3.30.0120.00319.12
8.3.20.0070.00020.19
8.3.10.0040.00423.61
8.3.00.0000.00820.65
8.2.180.0070.01116.63
8.2.170.0070.01422.96
8.2.160.0030.01020.39
8.2.150.0050.00224.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0090.00019.36
8.2.110.0090.00022.08
8.2.100.0090.00318.03
8.2.90.0040.00418.84
8.2.80.0080.00017.97
8.2.70.0000.00917.38
8.2.60.0080.00017.93
8.2.50.0090.00018.07
8.2.40.0040.00418.22
8.2.30.0040.00418.39
8.2.20.0000.00817.59
8.2.10.0040.00418.06
8.2.00.0030.00619.38
8.1.280.0120.00625.92
8.1.270.0060.00323.98
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0090.00023.92
8.1.230.0050.00518.92
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0000.01017.36
8.1.190.0080.00017.23
8.1.180.0090.00018.10
8.1.170.0030.00618.50
8.1.160.0050.00321.92
8.1.150.0000.00718.68
8.1.140.0040.00417.37
8.1.130.0030.00317.70
8.1.120.0080.00017.45
8.1.110.0040.00417.47
8.1.100.0040.00417.50
8.1.90.0050.00217.49
8.1.80.0000.00717.35
8.1.70.0040.00417.45
8.1.60.0030.00617.49
8.1.50.0040.00417.42
8.1.40.0050.00317.42
8.1.30.0040.00417.59
8.1.20.0000.00717.67
8.1.10.0080.00017.56
8.1.00.0040.00417.36
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0030.00318.38
8.0.270.0000.00717.10
8.0.260.0060.00017.22
8.0.250.0040.00416.93
8.0.240.0030.00516.93
8.0.230.0070.00016.73
8.0.220.0080.00016.80
8.0.210.0000.00716.78
8.0.200.0000.00916.88
8.0.190.0000.00716.93
8.0.180.0040.00416.86
8.0.170.0060.00316.74
8.0.160.0000.00816.88
8.0.150.0050.00316.75
8.0.140.0040.00416.81
8.0.130.0030.00313.23
8.0.120.0070.00016.83
8.0.110.0040.00416.81
8.0.100.0000.00716.71
8.0.90.0000.00716.79
8.0.80.0060.00916.84
8.0.70.0020.00516.70
8.0.60.0070.00017.00
8.0.50.0000.00716.94
8.0.30.0070.01117.04
8.0.20.0100.01017.40
8.0.10.0040.00417.01
8.0.00.0090.01016.79
7.4.330.0060.00015.02
7.4.320.0030.00316.50
7.4.300.0060.00016.62
7.4.290.0030.00316.50
7.4.280.0030.00416.48
7.4.270.0030.00316.60
7.4.260.0070.00016.58
7.4.250.0060.00316.36
7.4.240.0040.00416.50
7.4.230.0000.00716.35
7.4.220.0150.00316.71
7.4.210.0050.01116.59
7.4.200.0050.00316.39
7.4.160.0060.00916.34
7.4.150.0060.01217.40
7.4.140.0160.00317.86
7.4.130.0130.00516.41
7.4.120.0080.01116.36
7.4.110.0060.01216.45
7.4.100.0110.00516.52
7.4.90.0120.00616.47
7.4.80.0140.00919.39
7.4.70.0100.00516.52
7.4.60.0110.00716.46
7.4.50.0000.00616.53
7.4.40.0070.01016.56
7.4.30.0140.01116.41
7.4.00.0030.01314.88
7.3.330.0000.00513.11
7.3.320.0030.00313.17
7.3.310.0030.00316.23
7.3.300.0030.00316.10
7.3.290.0070.00716.30
7.3.280.0060.01016.25
7.3.270.0140.00417.40
7.3.260.0120.00916.55
7.3.250.0080.01216.30
7.3.240.0070.01416.26
7.3.230.0080.00816.39
7.3.210.0110.00716.37
7.3.200.0060.01619.39
7.3.190.0000.01716.28
7.3.180.0090.00916.44
7.3.170.0090.00616.33
7.3.160.0040.01216.26
7.3.120.0060.00614.97
7.2.330.0170.00616.52
7.2.320.0090.00916.58
7.2.310.0030.01416.73
7.2.300.0140.00416.42
7.2.290.0100.00616.40
7.2.110.0120.00916.17
7.2.60.0000.01316.78
7.2.00.0060.00619.43
7.1.200.0030.00815.55
7.1.100.0000.01018.00
7.1.70.0060.00617.26
7.1.60.0100.01319.70
7.1.50.0060.01916.89
7.1.00.0030.07722.30
7.0.200.0000.01116.23
7.0.140.0030.07322.10
7.0.60.0030.06319.94
7.0.50.0100.08017.86
7.0.40.0000.05319.90
7.0.30.0330.07720.00
7.0.20.0430.06720.33
7.0.10.0370.06319.99
7.0.00.0100.04320.09
5.6.280.0000.07721.04
5.6.210.0030.04020.75
5.6.200.0070.05018.19
5.6.190.0070.04320.50
5.6.180.0100.08020.33
5.6.170.0270.06020.48
5.6.160.0070.07320.61
5.6.150.0070.08318.11
5.6.140.0070.08018.09
5.6.130.0170.07318.18
5.6.120.0000.05021.14
5.6.110.0030.04321.04
5.6.100.0100.08321.02
5.6.90.0100.09020.96
5.6.80.0000.04020.36
5.6.70.0230.04320.36
5.5.350.0000.04320.29
5.5.340.0100.08017.93
5.5.330.0070.08320.23
5.5.320.0330.06020.14
5.5.310.0200.03320.26
5.5.300.0030.08317.98
5.5.290.0070.07717.92
5.5.280.0030.04720.66
5.5.270.0100.04320.79
5.5.260.0070.05720.64
5.5.250.0030.07720.77
5.5.240.0130.05720.13
5.4.450.0170.05033.66
5.4.440.0470.05333.62
5.4.430.0400.03737.17
5.4.420.0430.04331.27
5.4.410.0330.04031.25
5.4.400.0300.04329.33
5.4.390.0470.04329.32
5.4.380.0230.04718.57
5.4.370.0200.05018.49
5.4.360.0100.05318.66
5.4.350.0200.05018.60
5.4.340.0070.05718.51
5.4.320.0100.04212.46
5.4.310.0050.05112.45
5.4.300.0050.03912.46
5.4.290.0050.04212.45
5.4.280.0080.05412.35
5.4.270.0070.04012.34
5.4.260.0040.04212.35
5.4.250.0080.03612.35
5.4.240.0100.03712.35
5.4.230.0050.04012.34
5.4.220.0070.03612.34
5.4.210.0040.03812.34
5.4.200.0080.03612.34
5.4.190.0060.03812.34
5.4.180.0120.03712.34
5.4.170.0080.03512.35
5.4.160.0090.03412.34
5.4.150.0060.03812.34
5.4.140.0080.03712.02
5.4.130.0050.03712.01
5.4.120.0050.03611.97
5.4.110.0050.03711.96
5.4.100.0060.03511.97
5.4.90.0040.03811.96
5.4.80.0050.03811.96
5.4.70.0060.03611.96
5.4.60.0080.03511.96
5.4.50.0080.03711.96
5.4.40.0060.03611.95
5.4.30.0060.03711.95
5.4.20.0070.03611.95
5.4.10.0060.03611.95
5.4.00.0060.03911.43
5.3.290.0080.04712.80
5.3.280.0090.03712.71
5.3.270.0090.03812.72
5.3.260.0080.04112.71
5.3.250.0060.03912.72
5.3.240.0040.04012.72
5.3.230.0100.03512.71
5.3.220.0050.04112.68
5.3.210.0070.04612.68
5.3.200.0060.03912.68
5.3.190.0060.04112.68
5.3.180.0060.03812.67
5.3.170.0050.04012.67
5.3.160.0070.03712.67
5.3.150.0090.03812.67
5.3.140.0100.04112.66
5.3.130.0080.04112.66
5.3.120.0080.03912.66
5.3.110.0080.04612.66
5.3.100.0060.04112.12
5.3.90.0050.04312.09
5.3.80.0040.04412.07
5.3.70.0040.04112.07
5.3.60.0090.03712.06
5.3.50.0070.04012.00
5.3.40.0050.04112.00
5.3.30.0090.04111.95
5.3.20.0080.03611.72
5.3.10.0090.04911.69
5.3.00.0030.04411.68
5.2.170.0070.0299.18
5.2.160.0060.0299.18
5.2.150.0070.0299.18
5.2.140.0070.0309.17
5.2.130.0060.0319.13
5.2.120.0060.0289.14
5.2.110.0060.0419.14
5.2.100.0060.0449.14
5.2.90.0050.0469.14
5.2.80.0080.0439.14
5.2.70.0050.0329.14
5.2.60.0060.0319.09
5.2.50.0040.0319.05
5.2.40.0050.0309.03
5.2.30.0080.0309.01
5.2.20.0030.0319.00
5.2.10.0040.0368.92
5.2.00.0050.0298.77
5.1.60.0080.0318.06
5.1.50.0070.0228.06
5.1.40.0100.0548.04
5.1.30.0060.0308.39
5.1.20.0060.0318.41
5.1.10.0090.0258.14
5.1.00.0060.0268.14
5.0.50.0050.0216.61
5.0.40.0020.0216.48
5.0.30.0020.0336.29
5.0.20.0050.0186.26
5.0.10.0050.0256.23
5.0.00.0020.0316.23
4.4.90.0020.0164.78
4.4.80.0050.0144.75
4.4.70.0010.0174.75
4.4.60.0020.0174.75
4.4.50.0020.0174.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0020.0174.84
4.4.10.0040.0154.85
4.4.00.0040.0274.76
4.3.110.0030.0154.66
4.3.100.0050.0134.66
4.3.90.0030.0144.63
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0020.0154.63
4.3.50.0000.0184.63
4.3.40.0060.0214.54
4.3.30.0010.0183.29
4.3.20.0030.0163.27
4.3.10.0020.0173.23
4.3.00.0100.01729.30

preferences:
38.27 ms | 401 KiB | 5 Q