3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = new SplDoublyLinkedList; $list->push("foo"); $list->push("bar"); $ser = $list->serialize(); var_dump($ser); var_dump(unserialize($ser)); $list->setIteratorMode(0); $ser = $list->serialize(); var_dump($ser); var_dump(unserialize($ser));

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)
8.3.60.0120.00316.46
8.3.50.0120.00721.92
8.3.40.0090.00618.84
8.3.30.0080.00619.06
8.3.20.0060.00320.38
8.3.10.0000.00823.59
8.3.00.0040.00419.38
8.2.180.0030.01218.31
8.2.170.0070.00722.96
8.2.160.0070.00720.35
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00922.11
8.2.110.0060.00322.13
8.2.100.0090.00317.72
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0000.00917.80
8.2.50.0030.00618.07
8.2.40.0080.00019.95
8.2.30.0030.00717.91
8.2.20.0040.00417.64
8.2.10.0040.00417.99
8.2.00.0000.01117.66
8.1.280.0090.00625.92
8.1.270.0060.00323.91
8.1.260.0040.00426.35
8.1.250.0070.00728.09
8.1.240.0030.00623.84
8.1.230.0070.00418.99
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.10
8.1.180.0030.00618.10
8.1.170.0000.00918.55
8.1.160.0000.00721.83
8.1.150.0020.00518.49
8.1.140.0000.00717.46
8.1.130.0040.00417.74
8.1.120.0000.00717.49
8.1.110.0040.00417.45
8.1.100.0030.00317.38
8.1.90.0030.00517.42
8.1.80.0030.00617.26
8.1.70.0000.00717.29
8.1.60.0080.00017.52
8.1.50.0080.00017.48
8.1.40.0040.00417.45
8.1.30.0040.00417.52
8.1.20.0040.00417.55
8.1.10.0040.00417.41
8.1.00.0000.00717.34
8.0.300.0050.00320.73
8.0.290.0000.00717.18
8.0.280.0070.00018.26
8.0.270.0000.00717.21
8.0.260.0070.00017.07
8.0.250.0050.00316.99
8.0.240.0050.00216.86
8.0.230.0000.00716.90
8.0.220.0030.00316.92
8.0.210.0080.00016.88
8.0.200.0000.01016.85
8.0.190.0030.00616.98
8.0.180.0040.00416.89
8.0.170.0040.00416.80
8.0.160.0040.00416.93
8.0.150.0030.00316.75
8.0.140.0060.00316.90
8.0.130.0000.00713.31
8.0.120.0040.00416.76
8.0.110.0040.00416.80
8.0.100.0000.00716.91
8.0.90.0000.00716.88
8.0.80.0060.00916.84
8.0.70.0040.00416.81
8.0.60.0070.00016.80
8.0.50.0040.00416.96
8.0.30.0080.01016.96
8.0.20.0110.00817.40
8.0.10.0000.00816.97
8.0.00.0120.00516.65
7.4.330.0050.00015.00
7.4.320.0070.00016.54
7.4.300.0000.00616.44
7.4.290.0040.00416.56
7.4.280.0030.00516.54
7.4.270.0030.00316.38
7.4.260.0050.00216.57
7.4.250.0000.00716.52
7.4.240.0030.00416.40
7.4.230.0070.00016.34
7.4.220.0040.01516.50
7.4.210.0070.00716.45
7.4.200.0000.00716.54
7.4.190.0030.00316.63
7.4.160.0090.00616.61
7.4.150.0100.00717.40
7.4.140.0090.00917.86
7.4.130.0070.01016.42
7.4.120.0060.01116.45
7.4.110.0120.01216.40
7.4.100.0170.00716.40
7.4.90.0070.01016.46
7.4.80.0070.01619.39
7.4.70.0060.00916.46
7.4.60.0140.00316.48
7.4.50.0050.00016.42
7.4.40.0100.01316.45
7.4.30.0110.00516.54
7.4.00.0090.00614.88
7.3.330.0060.00013.09
7.3.320.0060.00013.00
7.3.310.0040.00416.12
7.3.300.0030.00316.00
7.3.290.0130.00316.19
7.3.280.0070.01016.11
7.3.270.0110.00717.40
7.3.260.0030.01316.29
7.3.250.0140.00516.16
7.3.240.0120.00416.18
7.3.230.0000.01616.39
7.3.210.0060.01016.61
7.3.200.0090.01019.39
7.3.190.0060.01516.33
7.3.180.0130.00316.28
7.3.170.0060.00916.27
7.3.160.0040.01616.18
7.3.120.0000.01114.91
7.2.330.0140.00316.26
7.2.320.0050.01516.31
7.2.310.0110.01016.57
7.2.300.0090.00916.41
7.2.290.0130.00316.49
7.2.00.0030.01019.41
7.1.100.0040.00717.95
7.1.70.0070.00716.86
7.1.60.0120.01219.46
7.1.50.0040.01817.01
7.1.00.0000.08022.54
7.0.200.0340.00314.45
7.0.140.0030.09022.08
7.0.60.0100.06019.93
7.0.50.0100.06317.87
7.0.40.0070.04320.20
7.0.30.0500.06020.02
7.0.20.0330.05320.33
7.0.10.0100.08720.35
7.0.00.0000.04320.19
5.6.280.0030.06321.04
5.6.210.0030.04720.50
5.6.200.0130.07018.22
5.6.190.0070.04320.58
5.6.180.0370.05720.46
5.6.170.0200.04320.48
5.6.160.0070.07720.44
5.6.150.0030.05718.15
5.6.140.0200.06318.12
5.6.130.0070.08018.19
5.6.120.0100.03720.89
5.6.110.0070.06320.97
5.6.100.0100.08721.13
5.6.90.0100.08721.10
5.6.80.0000.08320.51
5.5.350.0170.07720.30
5.5.340.0070.07318.01
5.5.330.0100.08320.43
5.5.320.0070.08320.13
5.5.310.0300.06020.41
5.5.300.0070.03717.90
5.5.290.0070.04017.90
5.5.280.0100.05320.80
5.5.270.0070.04720.74
5.5.260.0030.05320.72
5.5.250.0070.07020.50
5.5.240.0070.08020.12
5.4.450.0930.06019.13
5.4.440.0600.06719.63
5.4.430.0800.06019.31
5.4.420.0670.06319.10
5.4.410.0770.04319.49
5.4.400.1130.07019.16
5.4.390.0870.06719.29
5.4.380.0300.05318.72
5.4.370.0370.04718.65
5.4.360.0400.04318.73
5.4.350.0300.05718.78
5.4.340.0400.04718.59
5.4.320.0060.05212.45
5.4.310.0100.04712.45
5.4.300.0060.03812.46
5.4.290.0070.05612.43
5.4.280.0090.04812.33
5.4.270.0070.04912.34
5.4.260.0070.05412.34
5.4.250.0070.04512.33
5.4.240.0090.04012.33
5.4.230.0070.04512.32
5.4.220.0110.04712.32
5.4.210.0070.04012.32
5.4.200.0140.03712.33
5.4.190.0140.06312.32
5.4.180.0050.06312.32
5.4.170.0060.05812.33
5.4.160.0110.05312.33
5.4.150.0090.05012.32
5.4.140.0060.05212.01
5.4.130.0080.04712.00
5.4.120.0120.04511.96
5.4.110.0080.04611.95
5.4.100.0140.05911.95
5.4.90.0080.05111.95
5.4.80.0120.04911.95
5.4.70.0070.05211.95
5.4.60.0060.05011.95
5.4.50.0060.05111.95
5.4.40.0070.04811.94
5.4.30.0020.04311.93
5.4.20.0050.03911.93
5.4.10.0080.03711.94
5.4.00.0060.03811.42
5.3.290.0060.04412.80
5.3.280.0050.04112.71
5.3.270.0050.04212.73
5.3.260.0050.04112.72
5.3.250.0080.03812.72
5.3.240.0110.04012.72
5.3.230.0080.03912.71
5.3.220.0070.05412.68
5.3.210.0140.05412.68
5.3.200.0160.04912.68
5.3.190.0160.07212.68
5.3.180.0060.05312.67
5.3.170.0070.05412.67
5.3.160.0050.04112.68
5.3.150.0100.05212.67
5.3.140.0090.05412.66
5.3.130.0090.05312.66
5.3.120.0090.05312.66
5.3.110.0090.05812.66
5.3.100.0120.04312.12
5.3.90.0090.04512.09
5.3.80.0100.03512.07
5.3.70.0050.03812.08
5.3.60.0060.04112.07
5.3.50.0040.04312.00
5.3.40.0080.03812.00
5.3.30.0070.04111.95
5.3.20.0060.03811.72
5.3.10.0070.03411.69
5.3.00.0080.03511.68
5.2.170.0040.0339.18
5.2.160.0040.0319.18
5.2.150.0060.0339.18
5.2.140.0090.0299.18
5.2.130.0100.0339.14
5.2.120.0100.0359.14
5.2.110.0060.0419.14
5.2.100.0050.0439.14
5.2.90.0100.0359.14
5.2.80.0060.0359.14
5.2.70.0060.0359.14
5.2.60.0090.0329.09
5.2.50.0070.0329.06
5.2.40.0080.0399.04
5.2.30.0050.0499.01
5.2.20.0050.0409.00
5.2.10.0050.0358.92
5.2.00.0050.0428.78
5.1.60.0030.0378.07
5.1.50.0050.0348.06
5.1.40.0060.0278.04
5.1.30.0020.0328.39
5.1.20.0050.0308.42
5.1.10.0080.0268.14
5.1.00.0020.0328.14
5.0.50.0050.0226.62
5.0.40.0020.0256.48
5.0.30.0050.0346.29
5.0.20.0050.0206.27
5.0.10.0050.0226.24
5.0.00.0050.0336.23
4.4.90.0040.0234.78
4.4.80.0030.0244.76
4.4.70.0040.0224.75
4.4.60.0060.0164.76
4.4.50.0040.0244.77
4.4.40.0030.0344.71
4.4.30.0050.0204.76
4.4.20.0050.0214.85
4.4.10.0050.0194.85
4.4.00.0040.0284.75
4.3.110.0050.0154.67
4.3.100.0050.0144.66
4.3.90.0030.0164.63
4.3.80.0050.0244.58
4.3.70.0060.0124.63
4.3.60.0030.0164.63
4.3.50.0020.0174.63
4.3.40.0030.0264.54
4.3.30.0030.0173.28
4.3.20.0020.0173.25
4.3.10.0020.0173.22
4.3.00.0330.01710.55

preferences:
42.37 ms | 401 KiB | 5 Q