3v4l.org

run code in 300+ PHP versions simultaneously
<?php class User { public $profile; } class Profile { public $user; public function __construct(User $user) { $this->user = $user; $user->profile = $this; } } $user1 = new User(); $profile1 = new Profile($user); $user2 = new User(); $profile2 = new Profile($user); $profile1 == $profile2;

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)
8.3.60.0150.00418.56
8.3.50.0110.00521.97
8.3.40.0090.01218.91
8.3.30.0030.01219.02
8.3.20.0000.00820.16
8.3.10.0080.00023.55
8.3.00.0080.00020.75
8.2.180.0170.00317.13
8.2.170.0110.00422.96
8.2.160.0100.00320.11
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00926.16
8.2.120.0080.00020.84
8.2.110.0030.00720.31
8.2.100.0030.00917.78
8.2.90.0000.00920.42
8.2.80.0020.00520.48
8.2.70.0080.00017.63
8.2.60.0000.00717.80
8.2.50.0000.00818.07
8.2.40.0080.00019.76
8.2.30.0060.00318.25
8.2.20.0040.00417.77
8.2.10.0030.00518.02
8.2.00.0040.00417.70
8.1.280.0110.00425.92
8.1.270.0050.00323.92
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0030.00623.80
8.1.230.0000.01120.88
8.1.220.0000.00817.74
8.1.210.0060.00319.11
8.1.200.0040.00417.23
8.1.190.0050.00317.35
8.1.180.0030.00618.10
8.1.170.0040.00418.60
8.1.160.0040.00422.02
8.1.150.0040.00418.47
8.1.140.0000.00817.40
8.1.130.0000.00717.77
8.1.120.0020.00517.42
8.1.110.0040.00417.45
8.1.100.0030.00417.37
8.1.90.0070.00017.39
8.1.80.0000.00817.31
8.1.70.0000.00717.39
8.1.60.0000.00817.50
8.1.50.0030.00517.44
8.1.40.0040.00417.52
8.1.30.0000.00817.58
8.1.20.0000.00817.66
8.1.10.0040.00417.54
8.1.00.0070.00417.49
8.0.300.0080.00020.02
8.0.290.0000.00717.05
8.0.280.0060.00318.34
8.0.270.0070.00017.09
8.0.260.0000.00717.09
8.0.250.0030.00316.92
8.0.240.0000.00716.91
8.0.230.0000.00716.98
8.0.220.0070.00016.90
8.0.210.0000.00816.91
8.0.200.0030.00316.91
8.0.190.0000.00816.84
8.0.180.0030.00516.99
8.0.170.0030.00616.94
8.0.160.0040.00416.85
8.0.150.0070.00016.76
8.0.140.0000.00816.86
8.0.130.0000.00513.27
8.0.120.0080.00016.79
8.0.110.0000.00716.87
8.0.100.0030.00516.95
8.0.90.0000.00816.93
8.0.80.0160.00316.80
8.0.70.0040.00416.89
8.0.60.0000.00716.82
8.0.50.0000.00816.89
8.0.30.0050.01417.09
8.0.20.0100.00717.40
8.0.10.0080.00017.02
8.0.00.0120.00916.75
7.4.330.0000.00515.07
7.4.320.0000.00616.46
7.4.300.0030.00316.43
7.4.290.0030.00316.42
7.4.280.0040.00416.59
7.4.270.0050.00316.44
7.4.260.0030.00616.49
7.4.250.0070.00016.53
7.4.240.0060.00116.57
7.4.230.0030.00316.36
7.4.220.0060.01216.70
7.4.210.0070.00716.52
7.4.200.0070.00016.59
7.4.160.0060.00916.49
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0120.00516.45
7.4.120.0130.00316.44
7.4.110.0100.00716.38
7.4.100.0090.00916.69
7.4.90.0130.00316.64
7.4.80.0110.00719.39
7.4.70.0070.01216.39
7.4.60.0150.00316.47
7.4.50.0040.00416.44
7.4.40.0080.00916.24
7.4.30.0060.01016.38
7.4.00.0060.01115.01
7.3.330.0050.00013.25
7.3.320.0020.00213.23
7.3.310.0060.00016.47
7.3.300.0040.00416.20
7.3.290.0090.00516.38
7.3.280.0070.01216.34
7.3.270.0120.00417.40
7.3.260.0100.00716.31
7.3.250.0090.00916.62
7.3.240.0030.01316.40
7.3.230.0160.00016.64
7.3.210.0110.00716.43
7.3.200.0110.01116.47
7.3.190.0070.01016.39
7.3.180.0050.01116.54
7.3.170.0090.00616.30
7.3.160.0070.01416.28
7.3.120.0090.00714.93
7.3.110.0060.01214.68
7.3.100.0080.00514.74
7.3.90.0110.00014.95
7.3.80.0090.00614.74
7.3.70.0070.00714.54
7.3.60.0120.00314.69
7.3.50.0000.01214.86
7.3.40.0070.00714.88
7.3.30.0100.00314.55
7.3.20.0080.00316.43
7.3.10.0060.00916.55
7.3.00.0040.01116.41
7.2.330.0100.00716.65
7.2.320.0110.01116.29
7.2.310.0040.01316.64
7.2.300.0100.00716.50
7.2.290.0140.00416.63
7.2.250.0060.01215.12
7.2.240.0030.01614.67
7.2.230.0060.00915.15
7.2.220.0030.00614.73
7.2.210.0060.00314.68
7.2.200.0000.01714.85
7.2.190.0100.01015.08
7.2.180.0030.00714.70
7.2.170.0030.00714.95
7.2.60.0040.00816.69
7.1.330.0110.00415.38
7.1.320.0000.01215.43
7.1.310.0070.00315.51
7.1.300.0030.01015.71
7.1.290.0100.00315.71
7.1.280.0070.00715.45
7.1.270.0130.00315.81
7.1.260.0000.00815.79
7.1.200.0140.00015.64
7.1.70.0000.00717.12
7.1.60.0040.01819.70
7.1.50.0130.00016.91
7.1.00.0100.07022.39
7.0.200.0000.00716.88
7.0.140.0130.06022.06
7.0.60.0000.07319.86
7.0.50.0070.04717.95
7.0.40.0100.07320.05
7.0.30.0230.04720.25
7.0.20.0370.06320.30
7.0.10.0130.07320.23
7.0.00.0070.04720.19
5.6.280.0030.07320.99
5.6.210.0000.04320.50
5.6.200.0030.04718.27
5.6.190.0070.04020.67
5.6.180.0270.05720.59
5.6.170.0300.06720.39
5.6.160.0030.04020.52
5.6.150.0100.07718.25
5.6.140.0070.08718.28
5.6.130.0000.07018.21
5.6.120.0070.05021.02
5.6.110.0030.08321.02
5.6.100.0100.06721.04
5.6.90.0030.04021.13
5.6.80.0130.07020.29
5.6.70.4470.04720.38
5.5.350.0130.08020.44
5.5.340.0000.04318.00
5.5.330.0070.06320.57
5.5.320.0430.07020.21
5.5.310.0270.07320.24
5.5.300.0100.07017.94
5.5.290.0070.07718.04
5.5.280.0100.03720.77
5.5.270.0070.06320.95
5.5.260.0170.09020.79
5.5.250.0030.06720.50
5.5.240.0070.05320.25
5.4.450.0400.05029.93
5.4.440.0330.03329.93
5.4.430.0270.04729.93
5.4.420.0330.05329.93
5.4.410.0570.03329.92
5.4.400.0330.04029.34
5.4.390.0570.03328.29
5.4.380.0130.05318.59
5.4.370.0070.06018.45
5.4.360.0130.05018.57
5.4.350.0170.05318.78
5.4.340.0170.04718.75
5.4.320.0150.05412.50
5.4.310.0070.03712.49
5.4.300.0060.03712.50
5.4.290.0100.03512.50
5.4.280.0090.03712.39
5.4.270.0070.03612.40
5.4.260.0100.04912.39
5.4.250.0080.05112.39
5.4.240.0050.05412.39
5.4.230.0100.05112.39
5.4.220.0040.04312.38
5.4.210.0060.03512.39
5.4.200.0030.04012.39
5.4.190.0090.04712.39
5.4.180.0060.03512.39
5.4.170.0050.04412.39
5.4.160.0080.04212.39
5.4.150.0050.04012.38
5.4.140.0060.03912.07
5.4.130.0060.03612.06
5.4.120.0070.03412.02
5.4.110.0060.03612.01
5.4.100.0040.03712.01
5.4.90.0100.03412.02
5.4.80.0040.03912.01
5.4.70.0060.03512.01
5.4.60.0040.03712.01
5.4.50.0060.03512.00
5.4.40.0070.03312.00
5.4.30.0050.03711.99
5.4.20.0040.03712.00
5.4.10.0010.03911.99
5.4.00.0040.03811.48
5.3.290.0090.04212.80
5.3.280.0060.03812.71
5.3.270.0050.04012.73
5.3.260.0090.03612.71
5.3.250.0080.03612.72
5.3.240.0050.03812.72
5.3.230.0070.03612.71
5.3.220.0090.03412.68
5.3.210.0070.03912.68
5.3.200.0080.04412.68
5.3.190.0090.03812.68
5.3.180.0060.03712.67
5.3.170.0050.04612.67
5.3.160.0070.03712.68
5.3.150.0060.03712.68
5.3.140.0080.03412.66
5.3.130.0070.04212.66
5.3.120.0090.03812.66
5.3.110.0090.03812.66
5.3.100.0050.03812.13
5.3.90.0040.03912.11
5.3.80.0060.03612.09
5.3.70.0070.03612.09
5.3.60.0090.03512.08
5.3.50.0040.04012.03
5.3.40.0080.03512.03
5.3.30.0100.03711.99
5.3.20.0060.03511.76
5.3.10.0070.03311.73
5.3.00.0060.04311.72
5.2.170.0030.0329.22
5.2.160.0030.0329.22
5.2.150.0030.0329.22
5.2.140.0060.0299.23
5.2.130.0050.0319.17
5.2.120.0030.0319.18
5.2.110.0040.0319.18
5.2.100.0050.0289.18
5.2.90.0060.0319.18
5.2.80.0040.0319.18
5.2.70.0090.0259.18
5.2.60.0010.0339.13
5.2.50.0040.0319.10
5.2.40.0040.0299.08
5.2.30.0040.0319.05
5.2.20.0050.0289.05
5.2.10.0050.0268.95
5.2.00.0020.0318.82
5.1.60.0020.0258.09
5.1.50.0060.0248.09
5.1.40.0070.0268.07
5.1.30.0050.0268.43
5.1.20.0050.0268.44
5.1.10.0040.0328.17
5.1.00.0050.0278.17
5.0.50.0030.0226.64
5.0.40.0050.0176.50
5.0.30.0030.0316.32
5.0.20.0030.0226.29
5.0.10.0030.0206.26
5.0.00.0040.0306.25
4.4.90.0020.0174.77
4.4.80.0040.0164.76
4.4.70.0040.0144.76
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0040.0254.71
4.4.30.0030.0164.75
4.4.20.0020.0164.85
4.4.10.0030.0184.85
4.4.00.0020.0284.76
4.3.110.0020.0174.67
4.3.100.0020.0164.66
4.3.90.0040.0154.63
4.3.80.0030.0284.58
4.3.70.0020.0194.63
4.3.60.0040.0164.63
4.3.50.0010.0174.63
4.3.40.0040.0234.54
4.3.30.0010.0173.30
4.3.20.0020.0193.28
4.3.10.0010.0173.24
4.3.00.0000.01728.29

preferences:
47.06 ms | 401 KiB | 5 Q