3v4l.org

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

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)
8.3.60.0110.00416.75
8.3.50.0090.01222.05
8.3.40.0070.00718.68
8.3.30.0090.00618.84
8.3.20.0040.00420.33
8.3.10.0080.00023.48
8.3.00.0050.00319.50
8.2.180.0110.00718.24
8.2.170.0090.00622.96
8.2.160.0110.00720.44
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0070.00026.16
8.2.120.0090.00317.75
8.2.110.0050.00521.04
8.2.100.0120.00018.04
8.2.90.0060.00319.14
8.2.80.0030.00617.97
8.2.70.0000.00817.50
8.2.60.0040.00418.03
8.2.50.0040.00418.07
8.2.40.0060.00319.45
8.2.30.0040.00420.61
8.2.20.0000.00817.75
8.2.10.0040.00418.10
8.2.00.0040.00417.87
8.1.280.0070.01025.92
8.1.270.0050.00323.75
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0080.00023.94
8.1.230.0060.00620.84
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0040.00417.25
8.1.190.0030.00717.11
8.1.180.0000.00818.10
8.1.170.0000.00818.49
8.1.160.0070.00022.02
8.1.150.0040.00418.82
8.1.140.0060.00319.43
8.1.130.0040.00417.74
8.1.120.0000.00817.29
8.1.110.0000.00717.29
8.1.100.0070.00017.36
8.1.90.0040.00417.45
8.1.80.0000.00717.44
8.1.70.0000.00717.39
8.1.60.0040.00417.62
8.1.50.0090.00317.55
8.1.40.0000.01117.56
8.1.30.0050.00317.66
8.1.20.0000.00717.57
8.1.10.0040.00417.46
8.1.00.0060.00617.43
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00518.31
8.0.270.0030.00317.11
8.0.260.0030.00317.11
8.0.250.0000.00716.82
8.0.240.0070.00016.98
8.0.230.0000.00816.93
8.0.220.0070.00016.86
8.0.210.0030.00316.91
8.0.200.0000.00616.97
8.0.190.0090.00016.83
8.0.180.0050.00316.99
8.0.170.0000.00816.94
8.0.160.0070.00016.85
8.0.150.0030.00616.84
8.0.140.0040.00416.86
8.0.130.0030.00313.30
8.0.120.0040.00416.81
8.0.110.0070.00016.89
8.0.100.0040.00416.76
8.0.90.0040.00416.78
8.0.80.0040.01116.87
8.0.70.0030.00516.90
8.0.60.0070.00016.77
8.0.50.0050.00316.78
8.0.30.0020.01417.11
8.0.20.0100.01017.40
8.0.10.0030.00617.03
8.0.00.0130.00516.68
7.4.330.0000.00515.09
7.4.320.0030.00316.66
7.4.300.0060.00016.62
7.4.290.0030.00316.50
7.4.280.0070.00016.58
7.4.270.0000.00716.49
7.4.260.0030.00616.52
7.4.250.0030.00316.57
7.4.240.0050.00316.60
7.4.230.0030.00316.45
7.4.220.0130.01016.53
7.4.210.0070.00716.55
7.4.200.0000.00716.50
7.4.160.0080.00816.59
7.4.150.0130.00417.40
7.4.140.0100.01317.86
7.4.130.0120.00616.66
7.4.120.0100.00816.63
7.4.110.0130.01016.40
7.4.100.0090.00916.46
7.4.90.0120.00616.64
7.4.80.0070.01019.39
7.4.70.0100.00716.66
7.4.60.0080.00816.62
7.4.50.0030.00316.29
7.4.40.0090.00916.49
7.4.30.0140.00316.43
7.4.00.0080.00415.08
7.3.330.0050.00013.16
7.3.320.0030.00313.23
7.3.310.0050.00216.18
7.3.300.0050.00216.24
7.3.290.0090.00616.33
7.3.280.0130.00316.37
7.3.270.0140.01017.40
7.3.260.0090.00916.49
7.3.240.0070.01116.46
7.3.230.0100.00616.39
7.3.210.0100.01116.58
7.3.200.0040.01216.35
7.3.190.0110.00816.63
7.3.180.0070.01016.46
7.3.170.0160.00616.54
7.3.160.0040.01216.61
7.3.120.0000.01414.84
7.3.110.0000.01315.03
7.3.100.0040.00714.92
7.3.90.0030.01214.60
7.3.80.0030.00714.97
7.3.70.0060.00614.77
7.3.60.0060.00614.75
7.3.50.0090.00614.89
7.3.40.0150.00014.69
7.3.30.0000.01014.48
7.3.20.0000.01216.50
7.3.10.0070.01016.45
7.3.00.0030.01416.79
7.2.330.0030.01516.45
7.2.320.0110.00716.67
7.2.310.0070.01316.80
7.2.300.0140.00316.67
7.2.290.0070.01016.69
7.2.240.0000.00914.87
7.2.230.0120.00315.11
7.2.220.0000.01514.96
7.2.210.0100.00715.26
7.2.200.0030.00914.94
7.2.190.0120.00414.93
7.2.180.0100.00614.99
7.2.170.0060.00914.74
7.2.160.0000.01215.01
7.2.150.0040.01117.13
7.2.140.0030.01216.90
7.2.130.0120.00617.08
7.2.120.0100.00316.71
7.2.110.0070.01117.07
7.2.100.0070.00716.85
7.2.90.0030.01416.81
7.2.80.0000.01516.94
7.2.70.0110.00317.04
7.2.60.0150.00216.64
7.2.50.0060.00916.88
7.2.40.0070.01016.82
7.2.30.0110.00417.03
7.2.20.0060.01016.99
7.2.10.0060.00616.70
7.2.00.0080.00618.22
7.1.330.0030.01315.78
7.1.320.0030.01015.89
7.1.310.0000.01315.77
7.1.300.0030.01015.61
7.1.290.0040.01115.39
7.1.280.0000.01515.39
7.1.270.0100.00715.40
7.1.260.0040.01115.64
7.1.250.0060.00615.75
7.1.200.0080.00315.66
7.1.100.0110.00718.28
7.1.70.0000.00716.88
7.1.60.0120.01219.43
7.1.50.0090.01317.00
7.1.00.0030.07722.36
7.0.200.0070.00714.93
7.0.60.0070.06719.87
7.0.50.0030.04017.89
7.0.40.0130.08719.96
7.0.30.0200.04320.07
7.0.20.0370.07720.07
7.0.10.0030.09720.12
7.0.00.0130.07020.18
5.6.280.0030.03020.86
5.6.210.0130.07320.48
5.6.200.0100.08018.19
5.6.190.0170.03720.77
5.6.180.0270.04720.77
5.6.170.0130.05020.57
5.6.160.0000.05020.54
5.6.150.0070.04018.23
5.6.140.0030.08018.23
5.6.130.0070.08018.17
5.6.120.0100.03720.99
5.6.110.0070.07320.99
5.6.100.0130.06721.00
5.6.90.0030.04021.01
5.6.80.0070.08020.41
5.5.350.0370.06320.42
5.5.340.0030.07017.95
5.5.330.0030.06320.47
5.5.320.0170.04020.31
5.5.310.0230.07720.27
5.5.300.0000.04718.08
5.5.290.0100.04318.01
5.5.280.0130.07720.73
5.5.270.0100.06720.96
5.5.260.0130.07320.63
5.5.250.0070.04320.69
5.5.240.0270.06020.18
5.4.450.0670.06019.56
5.4.440.0700.06019.61
5.4.430.0730.04019.40
5.4.420.0600.05319.32
5.4.410.0730.05019.47
5.4.400.0800.04019.16
5.4.390.0600.05319.25
5.4.380.0700.04719.01
5.4.370.0730.05019.14
5.4.360.0700.05719.22
5.4.350.0630.04719.28
5.4.340.0530.06019.32
5.4.320.0630.05018.84
5.4.310.0730.05019.06
5.4.300.0670.04719.07
5.4.290.0700.04719.25
5.4.280.0670.05019.13
5.4.270.0670.04719.14
5.4.260.0570.05319.27
5.4.250.0630.04718.83
5.4.240.0600.05019.12
5.4.230.0600.05319.16
5.4.220.0600.06319.04
5.4.210.0730.05319.25
5.4.200.0700.04319.36
5.4.190.0670.04318.84
5.4.180.0700.04318.85
5.4.170.0770.05718.96
5.4.160.0600.05019.26
5.4.150.0630.05019.19
5.4.140.0570.05716.51
5.4.130.0600.04716.33
5.4.120.0570.05716.34
5.4.110.0630.05316.19
5.4.100.0770.05716.62
5.4.90.0600.05716.27
5.4.80.0500.05016.23
5.4.70.0570.04016.43
5.4.60.0600.05316.50
5.4.50.0730.04016.59
5.4.40.0700.04316.57
5.4.30.0500.06316.48
5.4.20.0730.04016.48
5.4.10.0670.06316.61
5.4.00.0670.04015.88

preferences:
59.47 ms | 401 KiB | 5 Q