3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private static $instance; public static function getInstance() { if (!self::$instance instanceof self) { self::$instance = new self; } return self::$instance; } } $foo = Foo::getInstance(); assert($foo instanceof Foo); $foo = Foo::getInstance(); assert($foo instanceof Foo);

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)
8.3.60.0130.00616.38
8.3.50.0110.00622.09
8.3.40.0070.00719.02
8.3.30.0090.00618.84
8.3.20.0080.00020.35
8.3.10.0040.00423.52
8.3.00.0060.00319.38
8.2.180.0070.01116.32
8.2.170.0030.01222.96
8.2.160.0030.01020.39
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0080.00022.24
8.2.110.0040.00422.24
8.2.100.0040.00817.91
8.2.90.0050.00317.88
8.2.80.0040.00417.97
8.2.70.0050.00517.50
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0030.00618.16
8.2.30.0080.00418.13
8.2.20.0070.00017.81
8.2.10.0030.00718.04
8.2.00.0070.00317.64
8.1.280.0170.00325.92
8.1.270.0000.00822.06
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00320.70
8.1.230.0090.00320.88
8.1.220.0000.00817.74
8.1.210.0090.00019.03
8.1.200.0000.00917.25
8.1.190.0000.00817.55
8.1.180.0000.00818.10
8.1.170.0060.00318.70
8.1.160.0030.00622.01
8.1.150.0000.00718.61
8.1.140.0000.00817.47
8.1.130.0030.00317.80
8.1.120.0050.00317.39
8.1.110.0070.00017.33
8.1.100.0070.00017.38
8.1.90.0000.00717.52
8.1.80.0000.00817.41
8.1.70.0040.00417.38
8.1.60.0030.00517.48
8.1.50.0040.00417.39
8.1.40.0040.00417.46
8.1.30.0040.00417.59
8.1.20.0040.00417.64
8.1.10.0090.00017.62
8.1.00.0030.00617.52
8.0.300.0000.00719.90
8.0.290.0000.00717.05
8.0.280.0060.00318.42
8.0.270.0000.00817.27
8.0.260.0060.00016.72
8.0.250.0030.00316.94
8.0.240.0000.00717.00
8.0.230.0050.00316.93
8.0.220.0030.00316.88
8.0.210.0000.00916.80
8.0.200.0030.00316.98
8.0.190.0070.00016.95
8.0.180.0000.00816.84
8.0.170.0000.00716.85
8.0.160.0070.00016.93
8.0.150.0000.00716.89
8.0.140.0040.00416.93
8.0.130.0000.00613.32
8.0.120.0070.00016.93
8.0.110.0000.00716.94
8.0.100.0040.00416.91
8.0.90.0060.00316.95
8.0.80.0080.00816.96
8.0.70.0050.00317.07
8.0.60.0070.00016.91
8.0.50.0000.00716.79
8.0.30.0150.00517.18
8.0.20.0120.00817.40
8.0.10.0040.00417.19
8.0.00.0080.00816.89
7.4.330.0000.00515.04
7.4.320.0000.00616.62
7.4.300.0000.00616.62
7.4.290.0000.00716.52
7.4.280.0030.00716.50
7.4.270.0000.00716.57
7.4.260.0050.00316.62
7.4.250.0040.00416.47
7.4.240.0020.00516.51
7.4.230.0050.00216.36
7.4.220.0100.02016.54
7.4.210.0080.00816.59
7.4.200.0070.00016.35
7.4.190.0040.00416.75
7.4.160.0060.00916.64
7.4.150.0030.01517.40
7.4.140.0030.01417.86
7.4.130.0120.00416.59
7.4.120.0100.00816.55
7.4.110.0160.00316.56
7.4.100.0030.01616.57
7.4.90.0040.01216.50
7.4.80.0060.01119.39
7.4.70.0130.00916.60
7.4.60.0090.00616.47
7.4.50.0000.00916.73
7.4.40.0030.01022.77
7.4.30.0130.00316.54
7.4.00.0050.01115.01
7.3.330.0000.00613.19
7.3.320.0050.00013.41
7.3.310.0000.00716.32
7.3.300.0050.00216.43
7.3.290.0040.01116.40
7.3.280.0080.00916.45
7.3.270.0030.01517.40
7.3.260.0130.00316.37
7.3.250.0090.01116.47
7.3.240.0080.01116.52
7.3.230.0130.00716.45
7.3.210.0070.01016.49
7.3.200.0110.00719.39
7.3.190.0070.01416.54
7.3.180.0120.00316.61
7.3.170.0080.00816.27
7.3.160.0070.00716.42
7.3.120.0110.00614.74
7.3.110.0070.00914.69
7.3.100.0000.01414.88
7.3.90.0090.00614.91
7.3.80.0070.00614.74
7.3.70.0060.00314.97
7.3.60.0040.01114.76
7.3.50.0060.00614.79
7.3.40.0110.00314.58
7.3.30.0090.00614.79
7.3.20.0080.00616.63
7.3.10.0030.01116.63
7.3.00.0060.00816.65
7.2.330.0040.01416.59
7.2.320.0100.00616.36
7.2.310.0040.01216.76
7.2.300.0060.01216.74
7.2.290.0100.01016.67
7.2.250.0070.01015.07
7.2.240.0080.01015.11
7.2.230.0080.00814.84
7.2.220.0040.00915.20
7.2.210.0080.00714.97
7.2.200.0070.00714.96
7.2.190.0030.00815.03
7.2.180.0090.00814.99
7.2.170.0080.01115.00
7.2.00.0060.01019.37
7.1.330.0080.00715.62
7.1.320.0050.00915.53
7.1.310.0020.01215.83
7.1.300.0030.01015.65
7.1.290.0050.00815.72
7.1.280.0050.00915.68
7.1.270.0030.00815.60
7.1.260.0020.00715.77
7.1.100.0040.01118.24
7.1.70.0050.00217.03
7.1.60.0120.01219.33
7.1.50.0070.01416.92
7.1.00.0000.08022.43
7.0.200.0030.01316.84
7.0.140.0070.07022.09
7.0.60.0000.04319.82
7.0.50.0070.04317.87
7.0.40.0000.04720.13
7.0.30.0370.05320.18
7.0.20.0330.06720.25
7.0.10.0070.07020.06
7.0.00.0100.06320.30
5.6.280.0030.07321.10
5.6.210.0100.07020.70
5.6.200.0000.07318.27
5.6.190.0170.03720.66
5.6.180.0230.05320.47
5.6.170.0170.04720.39
5.6.160.0070.08320.54
5.6.150.0070.05718.18
5.6.140.0130.05018.18
5.6.130.0030.07018.18
5.6.120.0130.07720.99
5.6.110.0100.08321.03
5.6.100.0000.04720.96
5.6.90.0000.04721.12
5.6.80.0130.07320.36
5.5.350.0030.07020.43
5.5.340.0070.07017.96
5.5.330.0070.06320.19
5.5.320.0300.04020.27
5.5.310.0270.06720.26
5.5.300.0030.06717.98
5.5.290.0000.09717.93
5.5.280.0130.08020.77
5.5.270.0030.04320.86
5.5.260.0030.04720.73
5.5.250.0070.07720.70
5.5.240.0270.07020.19
5.4.450.0830.05319.61
5.4.440.0830.05019.62
5.4.430.0700.05319.44
5.4.420.0630.00019.63
5.4.410.0030.06318.95
5.4.400.0270.05018.73
5.4.390.0230.05318.76
5.4.380.0200.06018.61
5.4.370.0200.03718.43
5.4.360.0100.03718.63
5.4.350.0060.04612.02
5.4.340.0090.03212.02
5.4.320.0050.04012.50
5.4.310.0060.03712.50
5.4.300.0100.03312.50
5.4.290.0070.03612.50
5.4.280.0060.04212.39
5.4.270.0060.03512.39
5.4.260.0050.04912.40
5.4.250.0030.04012.39
5.4.240.0040.03812.40
5.4.230.0090.04212.39
5.4.220.0040.04012.39
5.4.210.0090.03512.38
5.4.200.0100.04812.39
5.4.190.0160.04312.38
5.4.180.0160.04212.38
5.4.170.0140.04412.39
5.4.160.0160.04212.38
5.4.150.0170.04312.38
5.4.140.0160.04212.06
5.4.130.0180.04112.05
5.4.120.0150.04212.00
5.4.110.0130.04312.00
5.4.100.0130.04712.00
5.4.90.0120.04612.00
5.4.80.0160.04212.00
5.4.70.0120.04912.00
5.4.60.0160.04112.00
5.4.50.0300.05712.00
5.4.40.0140.04311.99
5.4.30.0130.04611.98
5.4.20.0100.04711.98
5.4.10.0140.04211.99
5.4.00.0170.03811.47
5.3.290.0100.04112.80
5.3.280.0030.04212.71
5.3.270.0160.04512.73
5.3.260.0220.04012.72
5.3.250.0170.04312.72
5.3.240.0170.04412.72
5.3.230.0170.04612.71
5.3.220.0150.04512.68
5.3.210.0120.05112.68
5.3.200.0090.05412.68
5.3.190.0170.04512.68
5.3.180.0180.04112.67
5.3.170.0140.04712.67
5.3.160.0170.04312.68
5.3.150.0190.04112.68
5.3.140.0160.04712.66
5.3.130.0140.04812.66
5.3.120.0130.04812.66
5.3.110.0220.03812.66
5.3.100.0150.04512.12
5.3.90.0200.04012.12
5.3.80.0150.04612.09
5.3.70.0150.04312.09
5.3.60.0190.04212.07
5.3.50.0150.04512.02
5.3.40.0150.04612.02
5.3.30.0170.04211.99
5.3.20.0170.04211.77
5.3.10.0170.04111.73
5.3.00.0140.04211.71
5.2.170.0170.0329.22
5.2.160.0130.0349.21
5.2.150.0160.0339.21
5.2.140.0110.0399.21
5.2.130.0180.0329.17
5.2.120.0160.0329.17
5.2.110.0100.0399.18
5.2.100.0150.0369.18
5.2.90.0180.0369.17
5.2.80.0190.0329.16
5.2.70.0140.0379.16
5.2.60.0070.0449.12
5.2.50.0210.0329.09
5.2.40.0130.0389.07
5.2.30.0150.0339.04
5.2.20.0150.0379.04
5.2.10.0170.0368.95
5.2.00.0120.0378.80
5.1.60.0090.0358.08
5.1.50.0100.0368.07
5.1.40.0090.0318.07
5.1.30.0140.0298.41
5.1.20.0110.0338.44
5.1.10.0180.0268.16
5.1.00.0120.0318.16
5.0.50.0130.0226.64
5.0.40.0110.0236.49
5.0.30.0080.0386.31
5.0.20.0120.0216.29
5.0.10.0120.0196.26
5.0.00.0080.0376.25
4.4.90.0100.0154.78
4.4.80.0080.0174.76
4.4.70.0090.0194.75
4.4.60.0090.0164.76
4.4.50.0070.0194.77
4.4.40.0080.0284.71
4.4.30.0080.0184.76
4.4.20.0090.0164.85
4.4.10.0050.0214.85
4.4.00.0050.0314.75
4.3.110.0040.0224.67
4.3.100.0090.0164.66
4.3.90.0100.0154.63
4.3.80.0040.0314.58
4.3.70.0070.0184.63
4.3.60.0080.0174.62
4.3.50.0080.0174.63
4.3.40.0090.0254.54
4.3.30.0050.0193.30
4.3.20.0090.0153.29
4.3.10.0040.0193.24
4.3.00.0170.0276.72

preferences:
50.63 ms | 400 KiB | 5 Q