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(3); $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)
8.3.60.0140.00316.75
8.3.50.0110.00822.05
8.3.40.0090.00618.67
8.3.30.0140.00019.04
8.3.20.0080.00020.04
8.3.10.0000.00823.36
8.3.00.0050.00319.13
8.2.180.0140.00316.50
8.2.170.0140.00322.96
8.2.160.0100.00322.13
8.2.150.0040.00424.18
8.2.140.0000.01024.66
8.2.130.0040.00426.16
8.2.120.0050.00522.27
8.2.110.0060.00620.94
8.2.100.0080.00317.76
8.2.90.0080.00017.91
8.2.80.0030.00618.04
8.2.70.0060.00317.93
8.2.60.0000.00917.97
8.2.50.0050.00318.10
8.2.40.0040.00419.34
8.2.30.0000.00819.25
8.2.20.0000.00817.52
8.2.10.0000.00718.04
8.2.00.0000.01117.50
8.1.280.0140.00725.92
8.1.270.0060.00323.84
8.1.260.0050.00226.35
8.1.250.0070.00728.09
8.1.240.0130.00017.39
8.1.230.0040.00822.63
8.1.220.0050.00317.74
8.1.210.0000.00818.91
8.1.200.0000.00917.35
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0040.00418.57
8.1.160.0040.00418.84
8.1.150.0040.00418.74
8.1.140.0040.00417.45
8.1.130.0040.00417.77
8.1.120.0000.00717.45
8.1.110.0080.00017.32
8.1.100.0040.00417.34
8.1.90.0040.00417.45
8.1.80.0060.00317.44
8.1.70.0030.00317.25
8.1.60.0040.00417.48
8.1.50.0040.00417.28
8.1.40.0000.00717.32
8.1.30.0040.00417.59
8.1.20.0040.00417.49
8.1.10.0050.00217.50
8.1.00.0070.00017.34
8.0.300.0050.00319.60
8.0.290.0000.00816.63
8.0.280.0050.00318.44
8.0.270.0030.00317.20
8.0.260.0030.00317.23
8.0.250.0030.00316.86
8.0.240.0030.00316.91
8.0.230.0000.00716.96
8.0.220.0000.00716.80
8.0.210.0000.00716.77
8.0.200.0030.00616.98
8.0.190.0000.00816.92
8.0.180.0000.00816.88
8.0.170.0000.00816.80
8.0.160.0040.00416.82
8.0.150.0030.00516.91
8.0.140.0040.00416.75
8.0.130.0000.00913.39
8.0.120.0040.00416.85
8.0.110.0040.00416.81
8.0.100.0040.00416.88
8.0.90.0000.00716.85
8.0.80.0060.00916.80
8.0.70.0000.00716.95
8.0.60.0040.00416.93
8.0.50.0000.00716.82
8.0.30.0050.01416.99
8.0.20.0110.00717.40
8.0.10.0000.00716.84
8.0.00.0130.00516.71
7.4.330.0050.00015.01
7.4.320.0070.00016.43
7.4.300.0070.00016.52
7.4.290.0070.00016.55
7.4.280.0040.00416.53
7.4.270.0030.00316.55
7.4.260.0070.00016.52
7.4.250.0030.00516.50
7.4.240.0020.00516.43
7.4.230.0030.00316.34
7.4.220.0070.01016.57
7.4.210.0060.00916.54
7.4.200.0000.00716.47
7.4.190.0030.00316.61
7.4.160.0090.00616.36
7.4.150.0070.01117.40
7.4.140.0080.01417.86
7.4.130.0140.00416.46
7.4.120.0160.00116.42
7.4.110.0040.02016.48
7.4.100.0100.00916.46
7.4.90.0100.01316.61
7.4.80.0090.00919.39
7.4.70.0060.01016.54
7.4.60.0060.01216.29
7.4.50.0060.00316.36
7.4.40.0090.00916.19
7.4.30.0000.01616.30
7.4.00.0040.01214.81
7.3.330.0000.00713.09
7.3.320.0050.00013.06
7.3.310.0050.00216.06
7.3.300.0030.00316.06
7.3.290.0110.00316.14
7.3.280.0100.00716.19
7.3.270.0110.00717.40
7.3.260.0050.01316.41
7.3.250.0050.01616.43
7.3.240.0160.00616.39
7.3.230.0110.00616.39
7.3.210.0100.00716.54
7.3.200.0070.01419.39
7.3.190.0120.00616.19
7.3.180.0070.00716.36
7.3.170.0070.01016.46
7.3.160.0090.01016.06
7.3.120.0060.00914.72
7.3.110.0020.01614.87
7.3.100.0030.01314.60
7.3.90.0080.00714.76
7.3.80.0030.00714.63
7.3.70.0070.00914.65
7.3.60.0090.00314.72
7.3.50.0070.00514.69
7.3.40.0120.00314.71
7.3.30.0030.01014.58
7.3.20.0030.01116.45
7.3.10.0030.00916.47
7.3.00.0070.00816.46
7.2.330.0140.00316.40
7.2.320.0000.01916.53
7.2.310.0120.00616.54
7.2.300.0030.01316.30
7.2.290.0030.01516.64
7.2.250.0080.00814.63
7.2.240.0080.01214.80
7.2.230.0030.01014.97
7.2.220.0060.00614.88
7.2.210.0030.01314.83
7.2.200.0020.00814.93
7.2.190.0060.00814.82
7.2.180.0090.00414.83
7.2.170.0050.01315.02
7.2.130.0090.00616.63
7.2.120.0030.01216.91
7.2.110.0000.00916.65
7.2.100.0070.00416.58
7.2.90.0060.00316.91
7.2.80.0100.00716.61
7.2.70.0040.00416.83
7.2.60.0110.00316.88
7.2.50.0060.00916.91
7.2.40.0000.01016.66
7.2.30.0080.00616.98
7.2.20.0090.00416.25
7.2.10.0090.00416.64
7.2.00.0100.00316.66
7.1.330.0020.01315.79
7.1.320.0030.01115.87
7.1.310.0030.01015.89
7.1.300.0060.00415.78
7.1.290.0060.00515.71
7.1.280.0060.00915.75
7.1.270.0110.00515.87
7.1.260.0020.01215.72
7.1.250.0040.00715.88
7.1.200.0070.00715.63
7.1.70.0050.00517.11
7.1.60.0070.01719.46
7.1.50.0160.00616.84
7.1.00.0030.07022.51
7.0.200.0340.00314.63
7.0.140.0030.09022.00
7.0.60.0130.07319.87
7.0.50.0070.04717.87
7.0.40.0130.03720.03
7.0.30.0230.03320.32
7.0.20.0270.07320.04
7.0.10.0000.05720.20
7.0.00.0070.08720.01
5.6.280.0070.07021.13
5.6.210.0000.06020.76
5.6.200.0030.06018.09
5.6.190.0030.04720.64
5.6.180.0330.04320.27
5.6.170.0330.07320.43
5.6.160.0100.04320.48
5.6.150.0030.07718.18
5.6.140.0100.07018.07
5.6.130.0030.06318.11
5.6.120.0070.08720.96
5.6.110.0130.08021.09
5.6.100.0030.05720.99
5.6.90.0130.06720.98
5.6.80.0070.04020.52
5.5.350.0130.08320.42
5.5.340.0030.03718.02
5.5.330.0070.08320.43
5.5.320.0000.04720.50
5.5.310.0430.06020.30
5.5.300.0030.07017.95
5.5.290.0030.04017.98
5.5.280.0070.08320.84
5.5.270.0130.08320.63
5.5.260.0030.07320.79
5.5.250.0070.08320.54
5.5.240.0070.03020.18
5.4.450.0630.05719.59
5.4.440.0770.04719.50
5.4.430.0670.06319.46
5.4.420.0700.04319.47
5.4.410.0770.06019.31
5.4.400.0730.04319.27
5.4.390.0730.04319.24
5.4.380.0370.05718.78
5.4.370.0270.05718.63
5.4.360.0370.05018.72
5.4.350.0270.05318.70
5.4.340.0300.06018.63
5.4.320.0060.04412.45
5.4.310.0080.03512.45
5.4.300.0070.03512.46
5.4.290.0050.04212.44
5.4.280.0060.04112.34
5.4.270.0050.04612.34
5.4.260.0050.04312.33
5.4.250.0070.05912.33
5.4.240.0080.07212.34
5.4.230.0040.06112.33
5.4.220.0130.06512.32
5.4.210.0140.04512.32
5.4.200.0100.06212.33
5.4.190.0110.06112.32
5.4.180.0090.06112.32
5.4.170.0100.06712.33
5.4.160.0100.05412.33
5.4.150.0090.04312.32
5.4.140.0040.03912.01
5.4.130.0060.03612.00
5.4.120.0050.03911.95
5.4.110.0040.04211.95
5.4.100.0050.03811.95
5.4.90.0070.03811.95
5.4.80.0060.05111.95
5.4.70.0070.05311.95
5.4.60.0090.04911.95
5.4.50.0080.04011.95
5.4.40.0080.03711.93
5.4.30.0090.03711.93
5.4.20.0060.03511.93
5.4.10.0060.03511.94
5.4.00.0080.03511.43
5.3.290.0060.04012.80
5.3.280.0080.03712.71
5.3.270.0070.05012.72
5.3.260.0100.04312.72
5.3.250.0070.05112.72
5.3.240.0170.09512.72
5.3.230.0090.04812.71
5.3.220.0170.07112.68
5.3.210.0040.04412.68
5.3.200.0090.03712.68
5.3.190.0070.03912.68
5.3.180.0090.03712.68
5.3.170.0050.04112.67
5.3.160.0080.03912.67
5.3.150.0120.05212.68
5.3.140.0040.04012.66
5.3.130.0060.03912.66
5.3.120.0060.03912.66
5.3.110.0090.05412.66
5.3.100.0080.03712.12
5.3.90.0090.05012.08
5.3.80.0040.05612.07
5.3.70.0050.04112.07
5.3.60.0060.03712.07
5.3.50.0070.04112.00
5.3.40.0090.05712.00
5.3.30.0080.05011.95
5.3.20.0050.04011.73
5.3.10.0090.03511.69
5.3.00.0040.04111.68
5.2.170.0060.0319.18
5.2.160.0070.0299.18
5.2.150.0120.0489.18
5.2.140.0140.0619.18
5.2.130.0140.0739.14
5.2.120.0060.0429.14
5.2.110.0030.0439.14
5.2.100.0070.0409.14
5.2.90.0080.0499.14
5.2.80.0080.0429.14
5.2.70.0050.0449.14
5.2.60.0020.0359.09
5.2.50.0040.0359.06
5.2.40.0040.0359.04
5.2.30.0030.0459.01
5.2.20.0060.0319.00
5.2.10.0050.0308.92
5.2.00.0070.0298.78
5.1.60.0120.0308.07
5.1.50.0070.0338.06
5.1.40.0130.0338.04
5.1.30.0110.0368.40
5.1.20.0090.0518.42
5.1.10.0100.0398.14
5.1.00.0110.0358.14
5.0.50.0050.0296.62
5.0.40.0060.0216.48
5.0.30.0070.0506.29
5.0.20.0070.0296.26
5.0.10.0050.0286.24
5.0.00.0070.0456.23
4.4.90.0030.0264.78
4.4.80.0050.0184.75
4.4.70.0020.0224.76
4.4.60.0000.0304.75
4.4.50.0030.0194.77
4.4.40.0050.0264.71
4.4.30.0030.0214.75
4.4.20.0020.0174.84
4.4.10.0030.0224.85
4.4.00.0060.0314.76
4.3.110.0030.0224.67
4.3.100.0060.0174.66
4.3.90.0060.0154.63
4.3.80.0040.0354.59
4.3.70.0040.0294.63
4.3.60.0060.0204.63
4.3.50.0040.0224.63
4.3.40.0040.0324.54
4.3.30.0050.0203.28
4.3.20.0050.0193.26
4.3.10.0010.0183.22
4.3.00.0130.01710.55

preferences:
53.56 ms | 400 KiB | 5 Q