3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait Singleton { protected static $instance; final public static function getInstance() { if (!isset(static::$instance)) { static::$instance = new static; } return static::$instance; } } class a1{ use Singleton; } class a2{ use Singleton; } $a = a1::getInstance(); $b = a2::getInstance(); $a = a1::getInstance(); $b = a2::getInstance(); var_dump($a,$b);

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)
8.3.60.0090.01218.40
8.3.50.0130.00822.00
8.3.40.0120.00618.73
8.3.30.0140.00019.17
8.3.20.0000.00720.16
8.3.10.0040.00423.71
8.3.00.0000.01017.63
8.2.180.0080.00818.16
8.2.170.0070.00722.96
8.2.160.0120.00320.25
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00422.06
8.2.110.0000.00919.39
8.2.100.0090.00317.72
8.2.90.0040.00418.94
8.2.80.0050.00317.97
8.2.70.0040.00417.50
8.2.60.0080.00417.91
8.2.50.0040.00418.07
8.2.40.0060.00319.82
8.2.30.0000.00818.14
8.2.20.0000.00817.78
8.2.10.0090.00017.94
8.2.00.0030.00517.67
8.1.280.0040.01825.92
8.1.270.0030.00623.82
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.18
8.1.230.0080.00419.00
8.1.220.0050.00217.79
8.1.210.0060.00318.77
8.1.200.0060.00317.48
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0040.00418.65
8.1.160.0040.00422.02
8.1.150.0110.00018.86
8.1.140.0040.00417.46
8.1.130.0000.00717.88
8.1.120.0080.00017.47
8.1.110.0030.00617.37
8.1.100.0030.00817.54
8.1.90.0000.00717.33
8.1.80.0040.00417.41
8.1.70.0070.00017.35
8.1.60.0030.00617.65
8.1.50.0040.00417.56
8.1.40.0000.00717.41
8.1.30.0040.00417.71
8.1.20.0080.00017.56
8.1.10.0040.00417.51
8.1.00.0040.00417.49
8.0.300.0000.00718.77
8.0.290.0070.00016.75
8.0.280.0000.00718.32
8.0.270.0000.00717.27
8.0.260.0050.00317.18
8.0.250.0020.00516.84
8.0.240.0000.00717.00
8.0.230.0000.00716.93
8.0.220.0000.00716.90
8.0.210.0070.00016.89
8.0.200.0030.00316.85
8.0.190.0040.00416.92
8.0.180.0000.00716.88
8.0.170.0000.00816.86
8.0.160.0040.00416.80
8.0.150.0040.00416.90
8.0.140.0000.00816.75
8.0.130.0060.00013.34
8.0.120.0030.00616.76
8.0.110.0040.00416.85
8.0.100.0040.00416.95
8.0.90.0040.00416.81
8.0.80.0000.01616.89
8.0.70.0000.00716.82
8.0.60.0000.00716.92
8.0.50.0040.00416.72
8.0.30.0040.01517.03
8.0.20.0150.00517.40
8.0.10.0070.00016.91
8.0.00.0120.00817.00
7.4.330.0020.00215.11
7.4.320.0050.00216.53
7.4.300.0030.00316.58
7.4.290.0000.00716.57
7.4.280.0000.00816.58
7.4.270.0030.00316.51
7.4.260.0050.00216.48
7.4.250.0000.00716.62
7.4.240.0020.00516.62
7.4.230.0030.00316.63
7.4.220.0030.01316.53
7.4.210.0000.01416.60
7.4.200.0040.00416.50
7.4.160.0030.01416.50
7.4.150.0090.01217.40
7.4.140.0090.01117.86
7.4.130.0050.01216.57
7.4.120.0090.00916.51
7.4.110.0130.00316.32
7.4.100.0040.01516.32
7.4.90.0200.00316.46
7.4.80.0030.01419.39
7.4.70.0160.00716.64
7.4.60.0160.00016.36
7.4.50.0020.00216.59
7.4.40.0100.00716.47
7.4.30.0060.01016.47
7.4.00.0040.01114.84
7.3.330.0050.00313.32
7.3.320.0020.00213.24
7.3.310.0030.00316.17
7.3.300.0000.00616.22
7.3.290.0030.01216.29
7.3.280.0100.00516.32
7.3.270.0110.00617.40
7.3.260.0140.00816.52
7.3.250.0080.01016.41
7.3.240.0090.00616.49
7.3.230.0070.01016.39
7.3.210.0070.01016.43
7.3.200.0030.01619.39
7.3.190.0070.00916.16
7.3.180.0060.00916.19
7.3.170.0040.01516.45
7.3.160.0130.00316.41
7.2.330.0070.01616.73
7.2.320.0090.00916.84
7.2.310.0000.01716.63
7.2.300.0080.00816.49
7.2.290.0060.01016.73
7.2.110.0170.00716.50
7.2.00.0040.00819.08
7.1.100.0000.00918.03
7.1.70.0030.01017.20
7.1.60.0140.01119.32
7.1.50.0100.01016.60
7.1.00.0030.07722.54
7.0.200.0080.00016.46
7.0.140.0070.07021.97
7.0.70.4600.04020.03
7.0.60.0130.06320.08
7.0.50.0030.07317.78
7.0.40.0100.08320.02
7.0.30.0300.05720.19
7.0.20.0270.04320.12
7.0.10.0330.07720.26
7.0.00.0030.06020.22
5.6.280.0000.07721.03
5.6.210.0100.06320.68
5.6.200.0000.04318.19
5.6.190.0170.08020.60
5.6.180.0270.07320.36
5.6.170.0430.05720.48
5.6.160.0170.07320.47
5.6.150.0130.07318.21
5.6.140.0070.04718.18
5.6.130.0030.04018.21
5.6.120.0130.08020.98
5.6.110.0070.07720.95
5.6.100.0130.06721.11
5.6.90.0000.09721.12
5.6.80.0200.07020.42
5.6.70.0270.08020.37
5.5.350.0130.07320.32
5.5.340.0070.07317.96
5.5.330.0070.06720.26
5.5.320.0070.07720.30
5.5.310.0230.03720.37
5.5.300.0100.03717.95
5.5.290.0030.04318.05
5.5.280.0030.06020.64
5.5.270.0170.07720.64
5.5.260.0030.07720.79
5.5.250.0000.05320.59
5.5.240.0200.07020.23
5.4.450.0430.05719.20
5.4.440.0730.04019.57
5.4.430.0230.05019.29
5.4.420.0630.00019.59
5.4.410.0700.00019.57
5.4.400.0630.00019.09
5.4.390.0630.00019.12
5.4.380.0700.00019.13
5.4.370.0630.00019.02
5.4.360.0630.00019.13
5.4.350.0630.00019.02
5.4.340.0070.03612.02
5.4.320.0070.03512.50
5.4.310.0040.04112.50
5.4.300.0050.04212.50
5.4.290.0060.04112.50
5.4.280.0060.03812.39
5.4.270.0100.03512.39
5.4.260.0080.03612.39
5.4.250.0050.04112.39
5.4.240.0110.03312.39
5.4.230.0070.03612.39
5.4.220.0060.03612.39
5.4.210.0050.03612.39
5.4.200.0050.03912.39
5.4.190.0080.03412.39
5.4.180.0050.03712.38
5.4.170.0050.03812.39
5.4.160.0040.03812.39
5.4.150.0060.03812.39
5.4.140.0050.04612.07
5.4.130.0080.03612.05
5.4.120.0070.03812.02
5.4.110.0060.03612.01
5.4.100.0050.03712.01
5.4.90.0060.03812.02
5.4.80.0070.03612.01
5.4.70.0050.03712.01
5.4.60.0060.03912.01
5.4.50.0080.03712.00
5.4.40.0040.03912.00
5.4.30.0030.04011.99
5.4.20.0050.04211.99
5.4.10.0100.03211.99
5.4.00.0060.03911.48
5.3.290.0050.04412.80
5.3.280.0090.03512.71
5.3.270.0050.04012.72
5.3.260.0080.03812.72
5.3.250.0040.03912.72
5.3.240.0040.03912.72
5.3.230.0060.03712.71
5.3.220.0050.03812.68
5.3.210.0090.03512.68
5.3.200.0060.03712.68
5.3.190.0040.04012.68
5.3.180.0030.04112.68
5.3.170.0050.04212.67
5.3.160.0080.04212.67
5.3.150.0050.03912.67
5.3.140.0040.03712.66
5.3.130.0060.04012.66
5.3.120.0090.03712.66
5.3.110.0080.03712.66
5.3.100.0050.03912.12
5.3.90.0040.03812.08
5.3.80.0050.03712.07
5.3.70.0080.03412.07
5.3.60.0070.03612.06
5.3.50.0060.03612.00
5.3.40.0030.03912.00
5.3.30.0060.03711.95
5.3.20.0090.03211.73
5.3.10.0080.03411.70
5.3.00.0090.03711.68
5.2.170.0070.0379.18
5.2.160.0060.0299.18
5.2.150.0060.0349.18
5.2.140.0100.0339.18
5.2.130.0030.0349.14
5.2.120.0050.0329.14
5.2.110.0030.0329.14
5.2.100.0040.0329.14
5.2.90.0050.0329.14
5.2.80.0030.0319.14
5.2.70.0040.0309.14
5.2.60.0040.0309.09
5.2.50.0060.0289.06
5.2.40.0060.0279.03
5.2.30.0050.0299.02
5.2.20.0050.0289.00
5.2.10.0050.0308.92
5.2.00.0050.0298.79
5.1.60.0030.0278.06
5.1.50.0060.0268.06
5.1.40.0030.0278.04
5.1.30.0020.0288.40
5.1.20.0030.0288.42
5.1.10.0060.0258.14
5.1.00.0060.0248.14
5.0.50.0060.0206.62
5.0.40.0020.0236.47
5.0.30.0040.0346.29
5.0.20.0020.0216.27
5.0.10.0040.0216.24
5.0.00.0060.0296.23
4.4.90.0030.0174.77
4.4.80.0040.0144.76
4.4.70.0020.0194.75
4.4.60.0020.0184.75
4.4.50.0030.0154.77
4.4.40.0020.0264.71
4.4.30.0030.0164.76
4.4.20.0020.0164.84
4.4.10.0070.0134.85
4.4.00.0070.0244.76
4.3.110.0040.0154.67
4.3.100.0010.0184.66
4.3.90.0030.0164.63
4.3.80.0090.0204.58
4.3.70.0020.0164.63
4.3.60.0050.0124.63
4.3.50.0030.0164.63
4.3.40.0020.0254.54
4.3.30.0020.0163.28
4.3.20.0020.0163.26
4.3.10.0010.0173.22
4.3.00.0000.01710.37

preferences:
61.66 ms | 401 KiB | 5 Q