3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Singleton { private static $instance; private function __construct() { echo 'NEW!'; } public static function getInstance() { if (null !== self::$instance) { self::$instance = new self(); } return self::$instance; } } $cl = function() { return new self(); }; var_dump(Singleton::getInstance());

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)
8.3.60.0070.01116.50
8.3.50.0130.00622.04
8.3.40.0100.00718.59
8.3.30.0170.00018.92
8.3.20.0080.00020.25
8.3.10.0000.00823.51
8.3.00.0070.00020.67
8.2.180.0080.00818.20
8.2.170.0140.00322.96
8.2.160.0120.00320.52
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0100.00026.16
8.2.120.0000.00722.08
8.2.110.0070.00320.30
8.2.100.0070.00417.72
8.2.90.0040.00419.27
8.2.80.0080.00017.97
8.2.70.0030.00717.49
8.2.60.0050.00318.03
8.2.50.0030.00618.07
8.2.40.0000.00820.06
8.2.30.0030.00318.17
8.2.20.0000.00817.61
8.2.10.0000.00717.94
8.2.00.0030.00517.70
8.1.280.0100.00725.92
8.1.270.0030.00622.09
8.1.260.0070.00026.35
8.1.250.0020.00528.09
8.1.240.0070.00421.99
8.1.230.0040.00722.82
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0030.00517.23
8.1.180.0070.00318.10
8.1.170.0030.00518.63
8.1.160.0020.00522.02
8.1.150.0000.00818.64
8.1.140.0090.00017.43
8.1.130.0000.00717.93
8.1.120.0000.00717.49
8.1.110.0000.00917.52
8.1.100.0030.00417.44
8.1.90.0000.00817.45
8.1.80.0000.00717.40
8.1.70.0040.00417.43
8.1.60.0080.00017.59
8.1.50.0040.00417.54
8.1.40.0000.00817.42
8.1.30.0040.00417.56
8.1.20.0030.00617.69
8.1.10.0040.00417.59
8.1.00.0040.00417.35
8.0.300.0070.00018.77
8.0.290.0040.00417.05
8.0.280.0030.00318.31
8.0.270.0000.00817.25
8.0.260.0040.00417.08
8.0.250.0000.00716.82
8.0.240.0000.00716.80
8.0.230.0070.00016.90
8.0.220.0000.00716.90
8.0.210.0000.00716.86
8.0.200.0030.00316.84
8.0.190.0000.00716.84
8.0.180.0050.00316.82
8.0.170.0030.00517.00
8.0.160.0050.00216.89
8.0.150.0000.00716.83
8.0.140.0040.00416.87
8.0.130.0000.00613.32
8.0.120.0050.00316.90
8.0.110.0000.00816.93
8.0.100.0040.00416.93
8.0.90.0000.00816.89
8.0.80.0070.01416.89
8.0.70.0050.00316.97
8.0.60.0070.00016.93
8.0.50.0070.00016.89
8.0.30.0100.01217.02
8.0.20.0100.01217.40
8.0.10.0000.00717.05
8.0.00.0120.00816.78
7.4.330.0050.00015.00
7.4.320.0030.00316.51
7.4.300.0030.00316.61
7.4.290.0000.00716.58
7.4.280.0000.00716.53
7.4.270.0080.00016.48
7.4.260.0030.00316.61
7.4.250.0050.00516.55
7.4.240.0040.00416.57
7.4.230.0070.00016.64
7.4.220.0090.00916.71
7.4.210.0080.00716.63
7.4.200.0070.00016.36
7.4.190.0000.00716.76
7.4.160.0090.01416.41
7.4.150.0100.01017.40
7.4.140.0090.01117.86
7.4.130.0080.00916.63
7.4.120.0060.01016.53
7.4.110.0130.00716.55
7.4.100.0140.01116.57
7.4.90.0060.01016.45
7.4.80.0030.01819.39
7.4.70.0070.01016.61
7.4.60.0120.00816.30
7.4.50.0000.00516.39
7.4.40.0090.00916.63
7.4.30.0130.00316.61
7.4.00.0060.00914.90
7.3.330.0000.00513.27
7.3.320.0030.00313.27
7.3.310.0040.00416.20
7.3.300.0030.00316.29
7.3.290.0050.00916.29
7.3.280.0060.01116.32
7.3.270.0110.00617.40
7.3.260.0130.00316.31
7.3.250.0060.01016.40
7.3.240.0160.00416.55
7.3.230.0100.00716.39
7.3.210.0070.01016.58
7.3.200.0120.00619.39
7.3.190.0070.01016.48
7.3.180.0060.01316.49
7.3.170.0030.01316.27
7.3.160.0160.00316.38
7.3.120.0030.01014.60
7.2.330.0040.01416.77
7.2.320.0100.01516.68
7.2.310.0040.01816.74
7.2.300.0060.01016.77
7.2.290.0120.00616.71
7.2.60.0030.00717.03
7.1.200.0000.01215.73
7.1.70.0000.00916.88
7.1.60.0090.01519.46
7.1.50.0030.01617.04
7.1.00.0030.07722.25
7.0.200.0040.00416.71
7.0.140.0030.07321.99
7.0.60.0000.08719.80
7.0.50.0100.06317.87
7.0.40.0000.07020.24
7.0.30.0200.06020.09
7.0.20.0200.09020.30
7.0.10.0030.04320.19
7.0.00.0000.04320.09
5.6.280.0000.07720.93
5.6.210.0000.08320.67
5.6.200.0070.08718.20
5.6.190.0130.07320.57
5.6.180.0130.07020.53
5.6.170.0170.04720.53
5.6.160.0070.07320.54
5.6.150.0030.04318.23
5.6.140.0130.07318.18
5.6.130.0070.07718.28
5.6.120.0000.08321.02
5.6.110.0100.05720.98
5.6.100.0070.07020.98
5.6.90.0230.08321.13
5.6.80.0070.06720.39
5.5.350.4270.04320.50
5.5.340.0070.08018.09
5.5.330.0070.06020.31
5.5.320.0170.04720.36
5.5.310.0470.06320.36
5.5.300.0130.05318.07
5.5.290.0100.04017.97
5.5.280.0030.05020.80
5.5.270.0000.04720.73
5.5.260.0070.08320.84
5.5.250.0070.06320.66
5.5.240.0100.06320.23
5.4.450.0270.05719.10
5.4.440.0270.06719.30
5.4.430.0170.06719.29
5.4.420.0170.05319.63
5.4.410.0170.05719.51
5.4.400.0170.05319.36
5.4.390.0230.05719.11
5.4.380.0300.04718.79
5.4.370.0170.04718.47
5.4.360.0230.04018.73
5.4.350.0070.06018.76
5.4.340.0100.05318.78
5.4.320.0070.04912.50
5.4.310.0040.03912.51
5.4.300.0090.03312.51
5.4.290.0060.04612.50
5.4.280.0060.04412.40
5.4.270.0070.03812.40
5.4.260.0030.04312.39
5.4.250.0050.03912.40
5.4.240.0110.03612.40
5.4.230.0090.04212.39
5.4.220.0100.03512.39
5.4.210.0080.03412.39
5.4.200.0070.03712.39
5.4.190.0080.03412.39
5.4.180.0120.03412.39
5.4.170.0050.04312.39
5.4.160.0110.03812.39
5.4.150.0070.04212.39
5.4.140.0060.03712.07
5.4.130.0110.04312.06
5.4.120.0070.05312.02
5.4.110.0100.03712.01
5.4.100.0070.03712.01
5.4.90.0070.04012.02
5.4.80.0080.03612.02
5.4.70.0090.03512.01
5.4.60.0100.03212.01
5.4.50.0100.03412.02
5.4.40.0070.03712.00
5.4.30.0060.03612.00
5.4.20.0080.03512.00
5.4.10.0070.03412.00
5.4.00.0090.03411.48
5.3.290.0110.03412.80
5.3.280.0070.03812.71
5.3.270.0050.04112.73
5.3.260.0060.04312.72
5.3.250.0060.04012.72
5.3.240.0100.04012.72
5.3.230.0080.04012.71
5.3.220.0080.05412.68
5.3.210.0050.04712.68
5.3.200.0050.04712.68
5.3.190.0100.05112.68
5.3.180.0060.05712.67
5.3.170.0050.05212.67
5.3.160.0120.03412.68
5.3.150.0140.03512.67
5.3.140.0070.03812.66
5.3.130.0070.03912.66
5.3.120.0050.04212.66
5.3.110.0060.04012.66
5.3.100.0080.03912.13
5.3.90.0070.03712.11
5.3.80.0060.03712.09
5.3.70.0030.03912.09
5.3.60.0050.03812.07
5.3.50.0050.03812.03
5.3.40.0060.03912.04
5.3.30.0070.04611.99
5.3.20.0110.03711.77
5.3.10.0060.03811.73
5.3.00.0080.03511.72
5.2.170.0070.0289.22
5.2.160.0050.0299.22
5.2.150.0040.0319.22
5.2.140.0070.0289.22
5.2.130.0050.0329.18
5.2.120.0080.0279.18
5.2.110.0080.0279.19
5.2.100.0080.0299.18
5.2.90.0050.0309.19
5.2.80.0080.0299.18
5.2.70.0060.0299.18
5.2.60.0060.0329.14
5.2.50.0050.0379.10
5.2.40.0070.0299.08
5.2.30.0060.0309.06
5.2.20.0020.0329.04
5.2.10.0050.0278.95
5.2.00.0040.0298.82
5.1.60.0020.0258.09
5.1.50.0020.0268.09
5.1.40.0080.0208.07
5.1.30.0060.0248.43
5.1.20.0020.0308.45
5.1.10.0040.0288.16
5.1.00.0030.0288.17
5.0.50.0080.0196.64
5.0.40.0070.0216.50
5.0.30.0030.0336.32
5.0.20.0030.0206.29
5.0.10.0080.0256.26
5.0.00.0040.0406.25
4.4.90.0030.0244.78
4.4.80.0030.0224.76
4.4.70.0000.0184.75
4.4.60.0040.0154.75
4.4.50.0030.0164.77
4.4.40.0030.0264.71
4.4.30.0040.0194.76
4.4.20.0020.0244.85
4.4.10.0040.0224.85
4.4.00.0040.0324.76
4.3.110.0050.0224.67
4.3.100.0030.0204.67
4.3.90.0020.0204.63
4.3.80.0040.0304.58
4.3.70.0040.0184.63
4.3.60.0020.0154.63
4.3.50.0030.0164.62
4.3.40.0020.0254.54
4.3.30.0010.0183.30
4.3.20.0010.0183.28
4.3.10.0030.0173.23
4.3.00.0100.0237.55

preferences:
37.68 ms | 401 KiB | 5 Q