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(SplDoublyLinkedList::IT_MODE_KEEP); $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)
8.3.60.0140.00416.75
8.3.50.0060.01121.94
8.3.40.0110.00418.71
8.3.30.0100.00318.96
8.3.20.0060.00320.21
8.3.10.0030.00623.56
8.3.00.0080.00019.26
8.2.180.0080.00818.13
8.2.170.0110.00322.96
8.2.160.0110.00420.43
8.2.150.0000.00824.18
8.2.140.0080.00324.66
8.2.130.0040.00426.16
8.2.120.0030.00522.12
8.2.110.0090.00021.97
8.2.100.0040.00717.64
8.2.90.0060.00317.91
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0040.00417.90
8.2.50.0030.00718.07
8.2.40.0040.00419.95
8.2.30.0030.00518.07
8.2.20.0030.00517.68
8.2.10.0040.00417.89
8.2.00.0100.00017.62
8.1.280.0190.00025.92
8.1.270.0080.00023.96
8.1.260.0030.00626.35
8.1.250.0000.01428.09
8.1.240.0060.00322.38
8.1.230.0000.01220.96
8.1.220.0040.00417.74
8.1.210.0040.00418.90
8.1.200.0090.00017.23
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0000.00818.48
8.1.160.0040.00421.88
8.1.150.0000.00718.57
8.1.140.0000.00717.30
8.1.130.0040.00417.83
8.1.120.0050.00217.41
8.1.110.0050.00317.28
8.1.100.0000.00717.37
8.1.90.0070.00017.30
8.1.80.0040.00417.30
8.1.70.0000.00717.42
8.1.60.0090.00017.42
8.1.50.0000.00817.31
8.1.40.0070.00017.37
8.1.30.0030.00517.41
8.1.20.0040.00417.51
8.1.10.0040.00417.40
8.1.00.0040.00417.34
8.0.300.0080.00019.90
8.0.290.0040.00417.05
8.0.280.0030.00318.45
8.0.270.0000.00717.20
8.0.260.0030.00317.12
8.0.250.0030.00316.90
8.0.240.0000.00716.85
8.0.230.0080.00016.89
8.0.220.0060.00016.87
8.0.210.0000.00716.88
8.0.200.0000.01016.87
8.0.190.0080.00016.93
8.0.180.0000.00716.85
8.0.170.0000.00916.99
8.0.160.0000.00716.92
8.0.150.0000.00716.86
8.0.140.0000.00716.89
8.0.130.0000.00613.29
8.0.120.0000.00816.86
8.0.110.0030.00516.97
8.0.100.0000.00816.93
8.0.90.0000.00716.86
8.0.80.0000.01516.87
8.0.70.0000.00716.87
8.0.60.0070.00016.95
8.0.50.0000.00716.79
8.0.30.0110.00817.04
8.0.20.0090.01117.40
8.0.10.0040.00417.01
8.0.00.0130.00716.65
7.4.330.0030.00315.00
7.4.320.0040.00416.53
7.4.300.0000.00616.49
7.4.290.0070.00016.44
7.4.280.0000.00916.48
7.4.270.0040.00416.36
7.4.260.0000.00716.52
7.4.250.0040.00416.42
7.4.240.0060.00216.52
7.4.230.0070.00016.35
7.4.220.0150.00316.34
7.4.210.0080.00616.45
7.4.200.0000.00716.54
7.4.190.0000.00716.70
7.4.160.0140.00616.41
7.4.150.0070.01017.40
7.4.140.0130.00817.86
7.4.130.0110.01016.38
7.4.120.0060.01116.34
7.4.110.0110.00716.38
7.4.100.0070.01716.27
7.4.90.0060.01216.41
7.4.80.0070.01319.39
7.4.70.0100.00716.49
7.4.60.0060.01016.34
7.4.50.0030.00616.21
7.4.40.0100.01316.31
7.4.30.0130.00316.41
7.4.00.0060.00614.41
7.3.330.0060.00012.88
7.3.320.0050.00012.93
7.3.310.0000.00716.23
7.3.300.0000.00715.99
7.3.290.0070.00716.15
7.3.280.0120.00716.11
7.3.270.0150.00917.40
7.3.260.0030.01316.29
7.3.250.0120.00516.29
7.3.240.0090.00816.36
7.3.230.0050.01016.39
7.3.210.0110.00616.47
7.3.200.0100.01419.39
7.3.190.0070.01616.19
7.3.180.0130.00316.04
7.3.170.0180.00316.53
7.3.160.0030.01616.46
7.3.120.0070.00414.70
7.2.330.0090.00916.63
7.2.320.0110.00716.59
7.2.310.0060.01516.52
7.2.300.0070.01016.55
7.2.290.0080.01316.37
7.2.00.0030.00919.09
7.1.100.0000.01117.93
7.1.70.0060.00317.04
7.1.60.0140.01019.46
7.1.50.0030.01616.99
7.1.00.0100.07022.51
7.0.200.0280.00414.39
7.0.140.0030.09022.07
7.0.60.0030.08719.93
7.0.50.0070.07717.90
7.0.40.0030.05020.05
7.0.30.0400.04020.17
7.0.20.0400.06720.04
7.0.10.0030.04320.16
7.0.00.0130.07320.19
5.6.280.0070.07021.15
5.6.210.0030.07020.73
5.6.200.0030.05318.08
5.6.190.0170.04720.67
5.6.180.3600.04720.64
5.6.170.0070.05020.51
5.6.160.0100.06720.41
5.6.150.0100.05718.12
5.6.140.0030.08318.18
5.6.130.0030.04318.14
5.6.120.0070.06320.99
5.6.110.0230.04020.98
5.6.100.0170.07321.12
5.6.90.0100.07720.88
5.6.80.0170.07320.41
5.5.350.0370.06720.43
5.5.340.0030.06717.93
5.5.330.0000.04720.16
5.5.320.0370.07320.28
5.5.310.0330.07720.18
5.5.300.0070.03717.89
5.5.290.0000.08317.93
5.5.280.0070.08320.88
5.5.270.0070.04020.75
5.5.260.0070.08320.89
5.5.250.0000.08320.61
5.5.240.0000.08020.15
5.4.450.0530.06019.51
5.4.440.0530.06019.62
5.4.430.0870.04719.54
5.4.420.0630.06019.46
5.4.410.0800.07019.41
5.4.400.0570.05319.00
5.4.390.0600.05319.32
5.4.380.0300.06018.68
5.4.370.0270.05318.68
5.4.360.1000.04718.50
5.4.350.0400.05718.59
5.4.340.0230.06018.50
5.4.320.0040.04912.46
5.4.310.0060.05212.45
5.4.300.0090.04512.46
5.4.290.0070.03812.44
5.4.280.0080.03812.34
5.4.270.0070.04212.34
5.4.260.0060.04312.33
5.4.250.0130.04012.34
5.4.240.0210.06112.33
5.4.230.0080.05812.33
5.4.220.0090.05112.32
5.4.210.0060.05512.32
5.4.200.0050.05612.33
5.4.190.0080.04012.32
5.4.180.0050.04512.32
5.4.170.0070.06112.33
5.4.160.0090.04812.33
5.4.150.0050.05412.32
5.4.140.0070.05312.01
5.4.130.0070.05012.00
5.4.120.0070.05211.96
5.4.110.0120.03611.95
5.4.100.0110.04311.95
5.4.90.0120.06511.95
5.4.80.0140.06311.95
5.4.70.0130.08011.95
5.4.60.0140.04811.95
5.4.50.0110.05111.95
5.4.40.0060.05711.93
5.4.30.0090.05611.94
5.4.20.0070.05211.93
5.4.10.0100.04111.93
5.4.00.0070.04511.43
5.3.290.0060.03912.80
5.3.280.0060.04312.71
5.3.270.0080.04212.72
5.3.260.0100.04112.72
5.3.250.0060.04612.72
5.3.240.0070.03812.71
5.3.230.0050.04212.71
5.3.220.0110.04312.68
5.3.210.0030.04712.68
5.3.200.0040.04112.68
5.3.190.0080.03712.68
5.3.180.0060.03812.67
5.3.170.0050.03912.67
5.3.160.0060.03912.67
5.3.150.0100.04812.67
5.3.140.0060.04112.66
5.3.130.0060.04112.66
5.3.120.0050.04012.66
5.3.110.0060.04212.66
5.3.100.0060.03712.11
5.3.90.0080.04112.08
5.3.80.0070.03512.07
5.3.70.0070.03712.07
5.3.60.0080.04312.06
5.3.50.0050.05212.00
5.3.40.0020.04412.00
5.3.30.0070.05111.95
5.3.20.0070.03911.73
5.3.10.0080.03511.69
5.3.00.0030.04911.68
5.2.170.0030.0319.18
5.2.160.0030.0319.18
5.2.150.0040.0429.18
5.2.140.0040.0329.18
5.2.130.0060.0309.14
5.2.120.0080.0279.14
5.2.110.0100.0269.14
5.2.100.0050.0319.14
5.2.90.0030.0329.14
5.2.80.0040.0339.14
5.2.70.0050.0319.14
5.2.60.0080.0269.09
5.2.50.0090.0269.06
5.2.40.0020.0339.04
5.2.30.0030.0319.01
5.2.20.0040.0309.00
5.2.10.0030.0318.92
5.2.00.0050.0338.78
5.1.60.0070.0318.07
5.1.50.0080.0318.06
5.1.40.0060.0258.05
5.1.30.0060.0338.40
5.1.20.0050.0298.42
5.1.10.0040.0278.14
5.1.00.0050.0328.14
5.0.50.0040.0216.62
5.0.40.0040.0206.48
5.0.30.0030.0326.29
5.0.20.0040.0186.26
5.0.10.0040.0226.24
5.0.00.0060.0386.23
4.4.90.0040.0184.78
4.4.80.0040.0234.75
4.4.70.0000.0194.76
4.4.60.0010.0184.75
4.4.50.0050.0284.77
4.4.40.0040.0314.71
4.4.30.0020.0174.76
4.4.20.0020.0164.85
4.4.10.0010.0194.85
4.4.00.0040.0264.76
4.3.110.0020.0184.66
4.3.100.0020.0174.67
4.3.90.0040.0214.63
4.3.80.0100.0334.58
4.3.70.0060.0164.63
4.3.60.0020.0274.63
4.3.50.0080.0284.63
4.3.40.0050.0404.54
4.3.30.0030.0223.29
4.3.20.0030.0213.27
4.3.10.0050.0193.23
4.3.00.0130.02710.55

preferences:
40.79 ms | 401 KiB | 5 Q