3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { private $i = 'foo'; } class Y extends X { public $a, $b = 2; protected $c, $d = 'd'; private $e, $i = 'bar'; } echo serialize(new Y);

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)
8.3.60.0030.01416.50
8.3.50.0180.00419.71
8.3.40.0120.00318.56
8.3.30.0140.00019.10
8.3.20.0050.00320.16
8.3.10.0030.00523.61
8.3.00.0040.00419.25
8.2.180.0130.01016.75
8.2.170.0170.00022.96
8.2.160.0130.00320.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00020.98
8.2.110.0030.00720.33
8.2.100.0110.00018.09
8.2.90.0040.00419.11
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0100.00017.93
8.2.50.0080.00018.07
8.2.40.0040.00418.03
8.2.30.0000.00818.00
8.2.20.0070.00017.66
8.2.10.0000.00717.93
8.2.00.0050.00217.50
8.1.280.0140.00325.92
8.1.270.0060.00323.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.06
8.1.230.0110.00019.09
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0100.00317.22
8.1.190.0040.00416.98
8.1.180.0000.00718.10
8.1.170.0040.00418.53
8.1.160.0080.00021.88
8.1.150.0040.00418.75
8.1.140.0070.00017.32
8.1.130.0040.00417.66
8.1.120.0000.00817.35
8.1.110.0030.00517.34
8.1.100.0020.00517.20
8.1.90.0000.00717.29
8.1.80.0040.00417.34
8.1.70.0000.00817.25
8.1.60.0080.00317.50
8.1.50.0040.00417.28
8.1.40.0000.00717.37
8.1.30.0000.00917.45
8.1.20.0040.00417.41
8.1.10.0000.00717.38
8.1.00.0000.00817.41
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0030.00718.24
8.0.270.0000.00717.25
8.0.260.0000.00617.26
8.0.250.0060.00016.83
8.0.240.0030.00317.02
8.0.230.0000.00716.70
8.0.220.0070.00016.72
8.0.210.0000.00716.72
8.0.200.0000.00716.71
8.0.190.0080.00016.78
8.0.180.0000.00716.69
8.0.170.0080.00016.76
8.0.160.0030.00316.77
8.0.150.0040.00416.71
8.0.140.0000.00716.68
8.0.130.0030.00313.16
8.0.120.0050.00316.79
8.0.110.0000.00716.72
8.0.100.0060.00316.80
8.0.90.0050.00216.63
8.0.80.0030.01316.73
8.0.70.0050.00316.75
8.0.60.0080.00016.66
8.0.50.0020.00516.75
8.0.30.0070.01217.09
8.0.20.0110.00917.40
8.0.10.0030.00516.90
8.0.00.0080.01016.76
7.4.330.0060.00015.00
7.4.320.0030.00316.39
7.4.300.0000.00616.37
7.4.290.0090.00016.28
7.4.280.0030.00616.35
7.4.270.0070.00016.48
7.4.260.0000.00916.37
7.4.250.0040.00416.25
7.4.240.0040.00316.42
7.4.230.0030.00316.48
7.4.220.0090.01316.26
7.4.210.0070.00716.41
7.4.200.0070.00016.39
7.4.160.0120.00616.44
7.4.150.0030.01317.40
7.4.140.0090.00817.86
7.4.130.0140.00616.38
7.4.120.0110.00616.42
7.4.110.0140.00316.35
7.4.100.0100.01016.25
7.4.90.0080.00816.59
7.4.80.0100.00719.39
7.4.70.0090.01216.35
7.4.60.0140.00316.32
7.4.50.0050.00316.33
7.4.40.0040.01116.28
7.4.30.0080.01216.30
7.4.00.0090.00614.97
7.3.330.0030.00313.05
7.3.320.0020.00213.05
7.3.310.0040.00416.08
7.3.300.0030.00316.20
7.3.290.0140.00016.14
7.3.280.0110.00716.14
7.3.270.0100.00717.40
7.3.260.0060.01216.38
7.3.250.0080.01216.27
7.3.240.0080.00816.37
7.3.230.0110.00616.54
7.3.210.0140.00316.14
7.3.200.0140.00319.39
7.3.190.0140.00316.39
7.3.180.0080.00816.25
7.3.170.0100.00616.28
7.3.160.0120.00416.30
7.3.10.0040.00816.60
7.3.00.0060.00616.56
7.2.330.0100.00716.27
7.2.320.0170.00416.32
7.2.310.0100.01016.40
7.2.300.0130.00316.58
7.2.290.0100.01016.21
7.2.130.0170.00016.84
7.2.120.0070.00316.73
7.2.110.0130.00316.71
7.2.100.0070.00316.69
7.2.90.0080.00616.63
7.2.80.0110.00416.66
7.2.70.0120.00316.59
7.2.60.0110.00916.77
7.2.50.0000.01616.73
7.2.40.0120.00016.91
7.2.30.0080.00316.73
7.2.20.0070.00717.00
7.2.10.0060.00316.50
7.2.00.0100.00618.04
7.1.250.0030.00915.66
7.1.200.0120.00015.75
7.1.100.0080.00417.93
7.1.70.0000.00716.80
7.1.60.0030.01019.46
7.1.50.0030.01016.75
7.1.00.0030.07322.43
7.0.200.0050.00216.79
7.0.140.0000.07721.92
7.0.60.0130.07320.00
7.0.50.0100.08017.84
7.0.40.0000.04720.27
7.0.30.0330.05720.17
7.0.20.0230.08020.33
7.0.10.0130.07020.07
7.0.00.0030.05320.33
5.6.280.0070.07021.15
5.6.210.0100.07320.51
5.6.200.0070.07018.16
5.6.190.0100.07320.47
5.6.180.0300.03720.64
5.6.170.0300.07320.62
5.6.160.0070.06320.56
5.6.150.0130.03718.18
5.6.140.0070.07318.21
5.6.130.0100.05718.25
5.6.120.0070.04321.01
5.6.110.0130.08020.98
5.6.100.0000.07320.97
5.6.90.0000.08720.97
5.6.80.0030.03720.44
5.6.70.4500.03320.50
5.5.350.0100.07020.45
5.5.340.0030.07717.95
5.5.330.0030.05320.31
5.5.320.0030.04020.51
5.5.310.0370.06020.35
5.5.300.0200.03717.94
5.5.290.0030.08318.02
5.5.280.0170.07320.65
5.5.270.0030.07720.76
5.5.260.0130.07720.87
5.5.250.0070.08020.69
5.5.240.0300.07320.26
5.4.450.0030.05719.31
5.4.440.0070.03719.41
5.4.430.0130.05319.45
5.4.420.0170.04019.39
5.4.410.0230.04319.39
5.4.400.0130.03018.84
5.4.390.0130.03319.06
5.4.380.0400.06318.75
5.4.370.0330.05018.82
5.4.360.0370.04318.67
5.4.350.0370.07018.81
5.4.340.0230.06718.71
5.4.320.0090.04412.50
5.4.310.0090.04412.49
5.4.300.0120.03712.49
5.4.290.0090.05112.50
5.4.280.0090.04112.39
5.4.270.0100.03612.39
5.4.260.0090.03812.39
5.4.250.0030.04012.39
5.4.240.0070.03612.39
5.4.230.0090.04512.39
5.4.220.0070.03512.38
5.4.210.0040.03712.38
5.4.200.0080.03812.38
5.4.190.0080.03612.38
5.4.180.0060.04212.38
5.4.170.0040.03912.39
5.4.160.0040.03812.39
5.4.150.0090.03712.38
5.4.140.0060.04012.07
5.4.130.0100.03412.05
5.4.120.0100.03412.01
5.4.110.0070.04912.01
5.4.100.0110.03312.01
5.4.90.0040.04312.01
5.4.80.0060.04012.01
5.4.70.0080.03112.01
5.4.60.0080.03312.00
5.4.50.0050.03812.00
5.4.40.0040.03711.99
5.4.30.0060.03711.99
5.4.20.0050.05111.99
5.4.10.0050.03611.99
5.4.00.0030.04511.48
5.3.290.0060.04012.80
5.3.280.0070.04512.71
5.3.270.0080.04512.72
5.3.260.0110.04012.71
5.3.250.0060.03912.72
5.3.240.0070.03712.72
5.3.230.0080.04412.71
5.3.220.0100.03712.68
5.3.210.0070.04112.68
5.3.200.0050.03712.68
5.3.190.0110.03412.68
5.3.180.0040.03712.67
5.3.170.0060.03612.67
5.3.160.0100.03312.67
5.3.150.0050.03812.68
5.3.140.0090.04112.66
5.3.130.0080.04112.66
5.3.120.0050.04612.66
5.3.110.0080.04412.66
5.3.100.0070.03912.12
5.3.90.0050.04312.10
5.3.80.0100.04012.09
5.3.70.0090.03712.09
5.3.60.0060.03712.07
5.3.50.0080.03912.02
5.3.40.0060.04712.02
5.3.30.0090.04311.98
5.3.20.0080.04011.76
5.3.10.0080.03711.72
5.3.00.0060.03511.71
5.2.170.0040.0319.21
5.2.160.0060.0289.21
5.2.150.0040.0319.21
5.2.140.0050.0299.21
5.2.130.0070.0299.17
5.2.120.0060.0329.17
5.2.110.0030.0319.18
5.2.100.0060.0319.17
5.2.90.0070.0339.17
5.2.80.0080.0319.17
5.2.70.0030.0409.17
5.2.60.0070.0359.13
5.2.50.0060.0369.09
5.2.40.0020.0329.07
5.2.30.0030.0309.04
5.2.20.0040.0299.03
5.2.10.0050.0278.94
5.2.00.0080.0258.80
5.1.60.0070.0218.08
5.1.50.0050.0298.08
5.1.40.0050.0358.06
5.1.30.0080.0288.41
5.1.20.0060.0338.43
5.1.10.0050.0358.16
5.1.00.0070.0318.16
5.0.50.0040.0256.64
5.0.40.0060.0236.50
5.0.30.0050.0386.30
5.0.20.0050.0276.27
5.0.10.0040.0196.25
5.0.00.0050.0296.25
4.4.90.0040.0144.78
4.4.80.0030.0154.75
4.4.70.0040.0144.76
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0030.0254.71
4.4.30.0050.0144.76
4.4.20.0070.0184.84
4.4.10.0040.0144.84
4.4.00.0030.0304.76
4.3.110.0050.0204.67
4.3.100.0040.0164.66
4.3.90.0040.0174.63
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0040.0134.63
4.3.50.0040.0154.63
4.3.40.0020.0254.54
4.3.30.0010.0173.30
4.3.20.0030.0153.28
4.3.10.0020.0153.23
4.3.00.0030.01714.87

preferences:
45.37 ms | 400 KiB | 5 Q