3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public static function get() { static $instance = null; if ($instance === null) { $instance = new static(); } return $instance; } } final class B extends A { } final class C extends A { } var_dump(A::get()); var_dump(B::get()); var_dump(C::get());

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)
8.3.60.0110.00418.43
8.3.50.0100.01016.20
8.3.40.0120.00318.66
8.3.30.0060.00818.92
8.3.20.0070.00020.16
8.3.10.0120.00623.45
8.3.00.0040.00419.13
8.2.180.0070.00716.47
8.2.170.0150.00022.96
8.2.160.0100.00320.36
8.2.150.0040.00424.18
8.2.140.0030.00724.66
8.2.130.0040.00426.16
8.2.120.0040.00422.18
8.2.110.0030.00622.25
8.2.100.0060.00617.75
8.2.90.0000.00919.17
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0000.00817.68
8.2.50.0000.00818.07
8.2.40.0000.00919.88
8.2.30.0000.00817.97
8.2.20.0000.00717.51
8.2.10.0040.00417.99
8.2.00.0070.00017.57
8.1.280.0030.01025.92
8.1.270.0170.00023.84
8.1.260.0000.00826.35
8.1.250.0030.00328.09
8.1.240.0060.00323.97
8.1.230.0090.00319.16
8.1.220.0040.00417.76
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0000.00818.46
8.1.160.0040.00421.98
8.1.150.0000.00718.82
8.1.140.0040.00417.47
8.1.130.0030.00317.85
8.1.120.0040.00417.51
8.1.110.0000.00717.32
8.1.100.0070.00017.40
8.1.90.0030.00517.42
8.1.80.0070.00017.41
8.1.70.0070.00017.25
8.1.60.0040.00417.60
8.1.50.0050.00317.58
8.1.40.0040.00417.51
8.1.30.0040.00417.67
8.1.20.0000.00717.69
8.1.10.0040.00417.46
8.1.00.0080.00017.48
8.0.300.0020.00518.77
8.0.290.0050.00216.63
8.0.280.0030.00318.46
8.0.270.0030.00317.21
8.0.260.0060.00017.27
8.0.250.0030.00316.98
8.0.240.0000.00616.86
8.0.230.0030.00316.94
8.0.220.0030.00316.90
8.0.210.0030.00316.90
8.0.200.0030.00316.89
8.0.190.0000.00816.98
8.0.180.0000.00816.82
8.0.170.0080.00016.93
8.0.160.0040.00316.97
8.0.150.0040.00416.77
8.0.140.0000.00716.77
8.0.130.0030.00313.30
8.0.120.0000.00716.78
8.0.110.0030.00516.89
8.0.100.0030.00516.77
8.0.90.0000.00716.96
8.0.80.0090.00916.81
8.0.70.0040.00416.93
8.0.60.0040.00416.71
8.0.50.0040.00416.90
8.0.30.0080.01317.10
8.0.20.0130.00617.40
8.0.10.0040.00417.00
8.0.00.0060.01116.81
7.4.330.0000.00615.02
7.4.320.0000.00616.59
7.4.300.0000.00716.61
7.4.290.0030.00316.59
7.4.280.0000.00816.50
7.4.270.0040.00416.54
7.4.260.0040.00416.57
7.4.250.0070.00016.45
7.4.240.0040.00416.51
7.4.230.0000.00716.42
7.4.220.0110.00716.52
7.4.210.0030.01116.65
7.4.200.0000.00716.54
7.4.160.0100.01316.70
7.4.150.0030.01417.40
7.4.140.0130.00917.86
7.4.130.0060.01116.60
7.4.120.0110.00716.44
7.4.110.0030.01416.49
7.4.100.0100.00716.66
7.4.90.0030.01416.52
7.4.80.0100.01319.39
7.4.70.0140.00316.68
7.4.60.0130.00316.63
7.4.50.0000.00816.68
7.4.40.0170.00716.50
7.4.30.0130.00316.36
7.4.00.0060.00914.88
7.3.330.0000.00513.29
7.3.320.0050.00013.13
7.3.310.0030.00316.29
7.3.300.0060.00016.26
7.3.290.0070.00616.27
7.3.280.0100.00616.31
7.3.270.0140.00417.40
7.3.260.0060.01216.31
7.3.250.0110.00816.47
7.3.240.0110.01116.59
7.3.230.0150.00616.39
7.3.210.0120.00416.30
7.3.200.0090.00916.46
7.3.190.0120.00616.58
7.3.180.0110.00616.23
7.3.170.0060.01216.47
7.3.160.0060.01616.41
7.2.330.0070.01116.63
7.2.320.0090.01216.61
7.2.310.0060.01016.40
7.2.300.0100.01216.60
7.2.290.0110.00816.58
7.2.00.0040.00419.38
7.1.100.0000.00917.75
7.1.70.0000.00717.17
7.1.60.0040.02119.11
7.1.50.0110.01416.99
7.1.00.0100.07022.28
7.0.200.0070.00316.66
7.0.140.0030.07321.95
7.0.60.0070.09019.96
7.0.50.0000.07317.84
7.0.40.0070.09020.40
7.0.30.0330.04720.11
7.0.20.0100.05320.23
7.0.10.0100.08720.31
7.0.00.0030.08720.20
5.6.280.0070.07020.86
5.6.210.0070.04720.67
5.6.200.0200.07718.29
5.6.190.0030.07720.57
5.6.180.0230.08020.47
5.6.170.0330.07320.39
5.6.160.0000.09020.54
5.6.150.0030.05018.25
5.6.140.0100.03718.14
5.6.130.0100.07718.16
5.6.120.0070.06721.15
5.6.110.0070.06021.14
5.6.100.0030.05021.11
5.6.90.0130.04320.98
5.6.80.0100.08020.41
5.6.70.4300.04320.43
5.5.350.0230.07020.47
5.5.340.0070.08017.99
5.5.330.0030.05020.44
5.5.320.0200.05720.35
5.5.310.0370.07320.30
5.5.300.0030.04318.05
5.5.290.0030.04017.96
5.5.280.0070.07020.85
5.5.270.0070.05020.77
5.5.260.0170.07320.84
5.5.250.0070.03720.58
5.5.240.0230.06720.20
5.4.450.0670.05319.64
5.4.440.0630.06019.33
5.4.430.0700.05319.45
5.4.420.0470.05319.30
5.4.410.0600.06019.18
5.4.400.0770.05319.29
5.4.390.0630.05319.14
5.4.380.0730.04318.98
5.4.370.0570.05319.06
5.4.360.0900.05318.98
5.4.350.0700.06019.37
5.4.340.0070.03512.02
5.4.320.0110.03412.50
5.4.310.0060.04712.50
5.4.300.0080.03712.50
5.4.290.0070.04012.50
5.4.280.0070.03612.39
5.4.270.0050.04112.39
5.4.260.0070.04312.39
5.4.250.0070.03812.40
5.4.240.0050.04012.40
5.4.230.0040.04112.39
5.4.220.0050.04112.39
5.4.210.0040.03812.39
5.4.200.0100.04312.39
5.4.190.0090.03812.38
5.4.180.0060.03912.39
5.4.170.0030.04112.39
5.4.160.0100.03512.39
5.4.150.0080.04612.39
5.4.140.0060.04812.07
5.4.130.0040.03812.06
5.4.120.0100.04612.02
5.4.110.0040.04112.01
5.4.100.0080.03912.01
5.4.90.0120.05812.01
5.4.80.0090.03812.02
5.4.70.0080.03312.01
5.4.60.0050.03612.01
5.4.50.0040.04112.01
5.4.40.0040.03612.00
5.4.30.0110.04211.99
5.4.20.0100.03511.99
5.4.10.0060.03811.99
5.4.00.0080.04211.48
5.3.290.0140.03812.80
5.3.280.0090.03912.71
5.3.270.0070.03912.73
5.3.260.0080.03912.72
5.3.250.0060.03712.72
5.3.240.0050.03812.72
5.3.230.0080.03512.71
5.3.220.0050.03812.68
5.3.210.0110.03512.68
5.3.200.0060.04312.68
5.3.190.0060.03812.67
5.3.180.0070.03512.68
5.3.170.0080.03512.67
5.3.160.0050.03712.67
5.3.150.0040.03912.67
5.3.140.0070.03512.66
5.3.130.0050.04012.66
5.3.120.0080.04312.66
5.3.110.0090.03512.65
5.3.100.0050.04512.11
5.3.90.0050.04412.10
5.3.80.0070.03612.09
5.3.70.0070.03512.09
5.3.60.0020.04012.08
5.3.50.0040.03812.02
5.3.40.0040.03712.02
5.3.30.0060.03511.98
5.3.20.0070.03311.77
5.3.10.0060.03511.73
5.3.00.0090.03511.72
5.2.170.0060.0349.23
5.2.160.0050.0299.22
5.2.150.0010.0339.22
5.2.140.0040.0319.22
5.2.130.0110.0229.18
5.2.120.0090.0269.18
5.2.110.0060.0319.18
5.2.100.0030.0309.18
5.2.90.0080.0269.18
5.2.80.0060.0349.17
5.2.70.0070.0399.18
5.2.60.0060.0309.13
5.2.50.0070.0299.10
5.2.40.0050.0299.07
5.2.30.0060.0299.05
5.2.20.0070.0299.04
5.2.10.0110.0318.95
5.2.00.0080.0338.80
5.1.60.0070.0328.09
5.1.50.0060.0358.09
5.1.40.0050.0258.07
5.1.30.0070.0248.42
5.1.20.0060.0258.44
5.1.10.0060.0248.16
5.1.00.0060.0328.17
5.0.50.0020.0236.64
5.0.40.0030.0226.50
5.0.30.0030.0336.32
5.0.20.0020.0216.28
5.0.10.0040.0196.26
5.0.00.0030.0326.25
4.4.90.0030.0174.78
4.4.80.0030.0174.76
4.4.70.0030.0164.75
4.4.60.0010.0194.75
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0030.0214.76
4.4.20.0030.0164.84
4.4.10.0040.0154.85
4.4.00.0020.0254.76
4.3.110.0060.0134.67
4.3.100.0020.0164.66
4.3.90.0030.0174.64
4.3.80.0050.0234.59
4.3.70.0080.0154.63
4.3.60.0060.0144.63
4.3.50.0030.0154.63
4.3.40.0020.0284.54
4.3.30.0030.0153.30
4.3.20.0010.0173.28
4.3.10.0020.0163.23
4.3.00.0200.0276.91

preferences:
38.05 ms | 400 KiB | 5 Q