3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = new SplDoublyLinkedList(); $list->push("a"); $list->push("b"); $ser = $list->serialize(); var_dump($ser); var_dump($this->unserialize($ser)); var_dump(unserialize($ser)); var_dump(unserialize($ser), $consumed); var_dump($consumed);

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)
8.3.40.0110.00418.70
8.3.30.0040.01119.04
8.3.20.0040.00420.07
8.3.10.0040.00423.48
8.3.00.0090.00019.35
8.2.170.0110.00722.96
8.2.160.0100.00720.33
8.2.150.0050.00324.18
8.2.140.0090.00024.66
8.2.130.0050.00326.16
8.2.120.0070.00022.33
8.2.110.0070.01422.20
8.2.100.0060.00617.91
8.2.90.0040.00419.22
8.2.80.0080.00017.97
8.2.70.0050.00317.46
8.2.60.0050.00317.93
8.2.50.0000.00818.07
8.2.40.0060.00319.89
8.2.30.0050.00217.89
8.2.20.0000.00817.64
8.2.10.0040.00417.93
8.2.00.0040.00817.68
8.1.270.0040.00423.92
8.1.260.0000.00926.35
8.1.250.0070.00028.09
8.1.240.0100.01023.99
8.1.230.0000.01219.20
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00917.35
8.1.190.0030.00717.10
8.1.180.0080.00018.10
8.1.170.0000.00818.46
8.1.160.0050.00321.98
8.1.150.0050.00218.60
8.1.140.0030.00517.41
8.1.130.0040.00417.89
8.1.120.0040.00417.43
8.1.110.0030.00517.45
8.1.100.0050.00217.45
8.1.90.0040.00417.41
8.1.80.0040.00417.42
8.1.70.0030.00317.30
8.1.60.0030.00517.44
8.1.50.0000.00817.56
8.1.40.0080.00017.50
8.1.30.0000.00817.64
8.1.20.0080.00017.68
8.1.10.0040.00417.56
8.1.00.0070.00017.42
8.0.300.0000.00820.61
8.0.290.0040.00416.91
8.0.280.0070.00018.41
8.0.270.0000.00717.27
8.0.260.0030.00317.12
8.0.250.0000.00816.85
8.0.240.0040.00417.00
8.0.230.0040.00416.96
8.0.220.0030.00316.90
8.0.210.0000.00716.95
8.0.200.0000.00716.86
8.0.190.0080.00016.99
8.0.180.0000.00716.77
8.0.170.0030.00516.95
8.0.160.0040.00416.89
8.0.150.0030.00316.92
8.0.140.0070.00016.89
8.0.130.0030.00613.30
8.0.120.0050.00316.87
8.0.110.0000.00816.84
8.0.100.0000.00716.93
8.0.90.0040.00416.98
8.0.80.0030.01216.86
8.0.70.0050.00216.91
8.0.60.0040.00416.74
8.0.50.0000.00717.02
8.0.30.0130.00617.11
8.0.20.0130.00617.40
8.0.10.0040.00417.02
8.0.00.0070.01016.82
7.4.330.0050.00015.08
7.4.320.0000.00616.47
7.4.300.0040.00416.49
7.4.290.0000.00716.60
7.4.280.0000.00716.56
7.4.270.0000.00716.55
7.4.260.0060.00016.40
7.4.250.0050.00316.61
7.4.240.0040.00316.56
7.4.230.0000.00716.50
7.4.220.0180.00716.40
7.4.210.0100.00616.67
7.4.200.0030.00316.63
7.4.190.0080.00016.67
7.4.160.0040.01216.41
7.4.150.0000.01717.40
7.4.140.0110.00817.86
7.4.130.0070.00916.50
7.4.120.0080.01016.54
7.4.110.0100.00716.66
7.4.100.0040.01816.39
7.4.90.0100.00716.40
7.4.80.0090.01519.39
7.4.70.0060.01216.56
7.4.60.0160.00016.54
7.4.50.0000.00916.62
7.4.40.0090.00916.40
7.4.30.0130.00316.44
7.4.00.0070.00714.96
7.3.330.0030.00313.05
7.3.320.0050.00013.06
7.3.310.0000.00716.20
7.3.300.0030.00316.24
7.3.290.0110.00616.22
7.3.280.0080.00816.26
7.3.270.0100.00517.40
7.3.260.0060.01216.49
7.3.250.0130.00716.35
7.3.240.0040.01216.27
7.3.230.0070.01016.39
7.3.210.0110.00716.35
7.3.200.0120.01219.39
7.3.190.0110.01116.22
7.3.180.0060.00916.36
7.3.170.0110.00716.27
7.3.160.0150.00016.32
7.3.120.0030.01314.65
7.2.330.0030.01416.57
7.2.320.0060.01216.54
7.2.310.0060.01216.49
7.2.300.0090.01216.61
7.2.290.0160.00016.50
7.2.60.0030.01316.73
7.2.00.0030.01319.36
7.1.200.0060.00915.95
7.1.100.0110.00317.95
7.1.70.0070.00717.20
7.1.60.0030.02019.46
7.1.50.0100.01016.95
7.1.00.0070.07022.24
7.0.200.0280.00314.39
7.0.140.0030.07021.97
7.0.60.0000.06320.02
7.0.50.0100.07717.81
7.0.40.0030.04320.40
7.0.30.0230.07720.09
7.0.20.0430.06320.22
7.0.10.0070.08320.13
7.0.00.0030.07720.30
5.6.280.0100.06320.99
5.6.210.0030.05720.65
5.6.200.0070.07018.15
5.6.190.0100.05020.60
5.6.180.0500.06020.61
5.6.170.0170.04320.51
5.6.160.0000.05720.33
5.6.150.0070.04018.12
5.6.140.0000.04318.21
5.6.130.0070.08018.10
5.6.120.0100.04021.00
5.6.110.0000.04721.01
5.6.100.0030.06021.13
5.6.90.0100.07720.95
5.6.80.0030.05720.42
5.5.350.0130.08320.48
5.5.340.0070.07718.02
5.5.330.0100.04020.13
5.5.320.0070.06320.24
5.5.310.0270.03320.31
5.5.300.0030.08317.88
5.5.290.0130.08018.01
5.5.280.0030.05020.77
5.5.270.0130.05020.77
5.5.260.0100.06720.79
5.5.250.0200.07720.68
5.5.240.0100.07020.25
5.4.450.0730.06019.46
5.4.440.0670.09019.25
5.4.430.0830.05019.52
5.4.420.0770.06019.50
5.4.410.0730.05319.33
5.4.400.0770.05019.21
5.4.390.0800.05019.30
5.4.380.0330.05318.61
5.4.370.0300.05718.50
5.4.360.0270.05718.59
5.4.350.0300.05318.50
5.4.340.0230.05018.70
5.4.320.0080.03512.46
5.4.310.0080.03912.45
5.4.300.0060.03712.46
5.4.290.0050.04212.44
5.4.280.0080.04112.33
5.4.270.0080.04112.33
5.4.260.0050.05112.34
5.4.250.0110.05712.34
5.4.240.0070.05912.33
5.4.230.0080.05712.33
5.4.220.0120.05412.32
5.4.210.0120.06312.33
5.4.200.0090.05212.32
5.4.190.0100.05212.32
5.4.180.0160.07012.32
5.4.170.0080.06812.34
5.4.160.0120.06312.33
5.4.150.0100.04912.33
5.4.140.0060.07612.01
5.4.130.0040.05612.00
5.4.120.0080.05911.95
5.4.110.0170.05211.95
5.4.100.0120.06411.95
5.4.90.0180.05211.95
5.4.80.0140.07911.95
5.4.70.0130.05811.95
5.4.60.0180.07111.95
5.4.50.0090.06211.95
5.4.40.0150.08611.93
5.4.30.0070.05311.93
5.4.20.0170.06711.93
5.4.10.0060.04511.93
5.4.00.0120.08911.43
5.3.290.0040.04212.80
5.3.280.0040.05512.71
5.3.270.0060.03812.72
5.3.260.0040.04212.71
5.3.250.0030.04012.72
5.3.240.0070.05512.72
5.3.230.0070.04812.71
5.3.220.0090.03712.68
5.3.210.0050.04112.68
5.3.200.0120.03212.68
5.3.190.0080.03712.68
5.3.180.0090.03412.68
5.3.170.0080.03912.67
5.3.160.0040.04112.67
5.3.150.0070.04212.68
5.3.140.0030.04012.66
5.3.130.0060.03912.66
5.3.120.0030.04212.66
5.3.110.0080.03712.66
5.3.100.0050.03712.12
5.3.90.0060.03612.08
5.3.80.0060.03712.07
5.3.70.0030.04012.07
5.3.60.0050.03612.07
5.3.50.0030.03812.00
5.3.40.0060.03512.00
5.3.30.0020.03811.95
5.3.20.0070.03211.73
5.3.10.0040.03611.69
5.3.00.0030.03811.68
5.2.170.0030.0329.18
5.2.160.0050.0299.18
5.2.150.0040.0359.18
5.2.140.0040.0319.18
5.2.130.0060.0299.14
5.2.120.0080.0269.14
5.2.110.0050.0329.14
5.2.100.0040.0319.14
5.2.90.0080.0319.14
5.2.80.0040.0349.14
5.2.70.0030.0349.14
5.2.60.0070.0419.09
5.2.50.0060.0349.06
5.2.40.0060.0309.04
5.2.30.0060.0419.01
5.2.20.0050.0319.00
5.2.10.0070.0278.92
5.2.00.0040.0328.78
5.1.60.0030.0278.07
5.1.50.0050.0258.07
5.1.40.0080.0228.04
5.1.30.0060.0268.40
5.1.20.0060.0278.41
5.1.10.0050.0288.14
5.1.00.0050.0288.14
5.0.50.0070.0336.62
5.0.40.0020.0236.48
5.0.30.0040.0336.29
5.0.20.0040.0226.27
5.0.10.0060.0276.24
5.0.00.0030.0426.23
4.4.90.0000.0254.77
4.4.80.0030.0154.75
4.4.70.0030.0174.75
4.4.60.0030.0164.75
4.4.50.0030.0174.77
4.4.40.0040.0264.71
4.4.30.0050.0244.76
4.4.20.0030.0194.85
4.4.10.0060.0144.85
4.4.00.0030.0264.76
4.3.110.0030.0164.67
4.3.100.0040.0214.66
4.3.90.0040.0214.64
4.3.80.0080.0454.59
4.3.70.0030.0214.63
4.3.60.0050.0154.63
4.3.50.0040.0184.63
4.3.40.0010.0274.54
4.3.30.0020.0173.29
4.3.20.0030.0163.25
4.3.10.0010.0173.22
4.3.00.0000.01310.55

preferences:
45.3 ms | 400 KiB | 5 Q