3v4l.org

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

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)
8.3.40.0090.00618.72
8.3.30.0070.00719.17
8.3.20.0040.00420.29
8.3.10.0000.00823.65
8.3.00.0030.00520.90
8.2.170.0140.00322.96
8.2.160.0100.00720.35
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00422.31
8.2.110.0060.00322.11
8.2.100.0030.00917.91
8.2.90.0000.00817.63
8.2.80.0040.00418.94
8.2.70.0030.00517.93
8.2.60.0060.00317.93
8.2.50.0000.00818.10
8.2.40.0000.00922.08
8.2.30.0070.00018.14
8.2.20.0050.00317.62
8.2.10.0000.00718.07
8.2.00.0040.00417.70
8.1.270.0050.00323.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.57
8.1.230.0090.00319.18
8.1.220.0090.00017.74
8.1.210.0080.00018.77
8.1.200.0000.01217.36
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0000.00818.48
8.1.160.0050.00222.09
8.1.150.0070.00018.71
8.1.140.0000.00717.41
8.1.130.0000.00717.80
8.1.120.0000.00717.47
8.1.110.0000.00717.50
8.1.100.0040.00417.49
8.1.90.0000.00717.52
8.1.80.0050.00217.36
8.1.70.0000.00717.42
8.1.60.0000.00717.66
8.1.50.0030.00517.49
8.1.40.0000.00817.52
8.1.30.0060.00317.61
8.1.20.0020.00517.64
8.1.10.0080.00017.51
8.1.00.0000.00817.54
8.0.300.0040.00420.12
8.0.290.0000.00816.63
8.0.280.0000.00718.41
8.0.270.0070.00017.23
8.0.260.0030.00317.27
8.0.250.0000.00716.79
8.0.240.0040.00416.90
8.0.230.0000.00716.97
8.0.220.0000.00716.81
8.0.210.0000.00716.85
8.0.200.0000.00616.93
8.0.190.0000.01016.98
8.0.180.0040.00416.95
8.0.170.0040.00416.96
8.0.160.0000.00916.97
8.0.150.0020.00516.76
8.0.140.0040.00416.86
8.0.130.0030.00313.43
8.0.120.0040.00416.86
8.0.110.0080.00016.95
8.0.100.0000.00816.97
8.0.90.0040.00416.80
8.0.80.0120.00616.86
8.0.70.0000.00816.95
8.0.60.0000.00716.78
8.0.50.0040.00416.70
8.0.30.0060.01216.92
8.0.20.0120.01017.45
8.0.10.0070.00016.97
8.0.00.0050.01816.92
7.4.330.0050.00015.12
7.4.320.0060.00016.62
7.4.300.0030.00316.56
7.4.290.0030.00316.49
7.4.280.0000.00816.39
7.4.270.0030.00316.57
7.4.260.0030.00316.60
7.4.250.0000.00716.55
7.4.240.0050.00216.58
7.4.230.0030.00316.59
7.4.220.0120.00716.47
7.4.210.0100.00616.61
7.4.200.0050.00316.66
7.4.190.0000.00716.48
7.4.160.0140.00416.38
7.4.150.0110.01117.40
7.4.140.0070.01517.86
7.4.130.0120.00616.78
7.4.120.0030.01416.48
7.4.110.0040.01516.59
7.4.100.0110.00716.53
7.4.90.0130.01016.74
7.4.80.0030.01719.39
7.4.70.0080.00916.64
7.4.60.0100.00716.35
7.4.50.0040.00416.63
7.4.40.0130.00516.45
7.4.30.0150.00016.26
7.4.10.0110.00814.96
7.4.00.0050.00914.94
7.3.330.0050.00013.04
7.3.320.0000.00513.16
7.3.310.0040.00416.21
7.3.300.0000.00616.17
7.3.290.0000.01416.29
7.3.280.0050.01316.34
7.3.270.0040.01217.40
7.3.260.0070.01416.20
7.3.250.0080.01016.32
7.3.240.0100.00716.44
7.3.230.0080.00816.39
7.3.210.0030.01316.34
7.3.200.0090.01119.39
7.3.190.0100.01316.25
7.3.180.0090.00616.55
7.3.170.0060.00916.50
7.3.160.0050.01116.28
7.3.130.0020.01614.76
7.3.120.0050.01114.86
7.3.110.0070.01314.58
7.3.100.0100.00314.90
7.3.90.0050.00714.72
7.3.80.0020.01214.87
7.3.70.0050.00614.78
7.3.60.0050.00914.82
7.3.50.0040.01014.84
7.3.40.0060.00614.71
7.3.30.0000.01414.72
7.3.20.0080.00716.53
7.3.10.0060.00716.41
7.3.00.0010.01116.44
7.2.330.0090.00916.51
7.2.320.0100.01116.75
7.2.310.0060.01716.61
7.2.300.0120.00416.75
7.2.290.0090.01216.54
7.2.260.0050.01215.04
7.2.250.0090.00815.17
7.2.240.0030.01115.32
7.2.230.0060.00714.74
7.2.220.0090.00615.07
7.2.210.0070.00515.24
7.2.200.0090.00615.22
7.2.190.0050.00915.05
7.2.180.0000.01215.08
7.2.170.0040.00815.14
7.2.160.0030.00915.00
7.2.150.0060.00716.75
7.2.140.0050.00616.92
7.2.130.0080.00616.91
7.2.120.0080.00716.89
7.2.110.0110.00416.85
7.2.100.0070.00916.80
7.2.90.0070.00916.87
7.2.80.0070.00916.93
7.2.70.0070.00816.77
7.2.60.0070.00816.81
7.2.50.0050.00917.02
7.2.40.0110.00616.95
7.2.30.0060.00716.81
7.2.20.0050.00816.73
7.2.10.0080.00616.75
7.2.00.0040.00917.52
7.1.330.0120.00315.88
7.1.320.0070.01015.85
7.1.310.0000.00915.87
7.1.300.0080.00615.59
7.1.290.0020.00615.80
7.1.280.0050.00915.90
7.1.270.0030.00815.80
7.1.260.0050.00615.60
7.1.250.0100.00515.65
7.1.240.0100.00315.71
7.1.230.0070.00515.86
7.1.220.0040.00715.80
7.1.210.0050.00915.79
7.1.200.0030.01215.70
7.1.190.0020.01115.68
7.1.180.0040.00815.77
7.1.170.0060.00715.75
7.1.160.0060.00515.72
7.1.150.0080.00615.70
7.1.140.0080.00815.62
7.1.130.0080.00515.87
7.1.120.0030.00815.73
7.1.110.0040.00815.71
7.1.100.0020.01016.62
7.1.90.0050.00515.74
7.1.80.0060.00715.71
7.1.70.0040.00616.10
7.1.60.0050.01217.00
7.1.50.0030.01316.21
7.1.40.0040.00715.58
7.1.30.0020.00915.72
7.1.20.0030.00915.74
7.1.10.0030.00815.74
7.1.00.0040.03318.03
7.0.330.0090.00715.32
7.0.320.0060.00615.14
7.0.310.0050.00615.14
7.0.300.0020.00815.30
7.0.290.0030.01015.39
7.0.280.0070.00615.35
7.0.270.0070.00615.28
7.0.260.0030.01015.43
7.0.250.0070.00415.34
7.0.240.0040.00815.37
7.0.230.0050.00815.29
7.0.220.0000.01015.31
7.0.210.0090.00515.39
7.0.200.0040.00815.76
7.0.190.0050.00715.36
7.0.180.0090.00115.26
7.0.170.0050.00715.42
7.0.160.0080.00515.24
7.0.150.0050.01015.37
7.0.140.0070.02917.44
7.0.130.0080.00515.27
7.0.120.0080.00315.31
7.0.110.0030.00915.34
7.0.100.0020.01215.40
7.0.90.0080.00615.19
7.0.80.0090.00215.38
7.0.70.0030.01115.38
7.0.60.0070.02417.04
7.0.50.0070.02316.24
7.0.40.0080.01515.65
7.0.30.0150.03115.61
7.0.20.0080.03615.70
7.0.10.0050.01815.64
7.0.00.0070.01515.66
5.6.400.0030.00914.55
5.6.390.0050.01214.56
5.6.380.0050.00814.36
5.6.370.0090.00514.53
5.6.360.0080.00314.42
5.6.350.0040.00714.63
5.6.340.0120.00614.29
5.6.330.0020.01014.35
5.6.320.0040.00614.34
5.6.310.0110.00514.28
5.6.300.0030.01214.58
5.6.290.0050.00514.50
5.6.280.0060.02416.54
5.6.270.0080.00314.64
5.6.260.0040.00514.45
5.6.250.0070.00414.44
5.6.240.0060.00614.46
5.6.230.0050.01014.42
5.6.220.0030.00914.46
5.6.210.0040.01816.50
5.6.200.0020.03215.53
5.6.190.0070.01716.41
5.6.180.0070.03416.42
5.6.170.0120.02716.43
5.6.160.0060.02716.58
5.6.150.0020.01915.59
5.6.140.0060.02215.53
5.6.130.0050.02415.63
5.6.120.0080.03116.54
5.6.110.0080.02616.75
5.6.100.0090.02316.55
5.6.90.0090.02816.54
5.6.80.0020.03716.35
5.6.70.0080.00614.08
5.6.60.0070.00614.25
5.6.50.0040.00714.19
5.6.40.0100.00314.26
5.6.30.0070.00414.25
5.6.20.0060.00614.16
5.6.10.0070.00514.37
5.6.00.0070.00614.39
5.5.380.0080.00614.16
5.5.370.0030.01314.45
5.5.360.0050.01014.37
5.5.350.1380.01716.28
5.5.340.0030.03715.46
5.5.330.0040.02116.36
5.5.320.0070.02916.23
5.5.310.0240.02316.42
5.5.300.0050.03415.46
5.5.290.0050.01815.60
5.5.280.0080.01316.47
5.5.270.0090.01716.41
5.5.260.0030.02616.42
5.5.250.0050.02116.42
5.5.240.0050.02816.19
5.5.230.0080.00614.17
5.5.220.0060.00614.22
5.5.210.0050.00714.08
5.5.200.0070.00714.44
5.5.190.0070.00514.26
5.5.180.0060.00614.29
5.5.170.0040.01114.29
5.5.160.0030.00814.14
5.5.150.0060.00814.22
5.5.140.0020.01414.40
5.5.130.0030.00914.01
5.5.120.0050.00814.32
5.5.110.0030.00814.23
5.5.100.0020.00914.35
5.5.90.0060.01014.17
5.5.80.0030.00814.22
5.5.70.0030.01214.34
5.5.60.0080.00514.29
5.5.50.0060.00814.20
5.5.40.0090.00614.00
5.5.30.0040.00814.22
5.5.20.0070.00614.13
5.5.10.0080.00314.38
5.5.00.0060.00514.42
5.4.450.0150.01914.16
5.4.440.0110.02414.14
5.4.430.0070.02214.09
5.4.420.0100.03014.09
5.4.410.0070.03014.15
5.4.400.0060.02214.15
5.4.390.0090.02314.04
5.4.380.0100.01913.92
5.4.370.0030.02513.95
5.4.360.0120.02213.78
5.4.350.0070.02013.78
5.4.340.0070.02213.86
5.4.330.0020.00711.57
5.4.320.0040.02011.86
5.4.310.0060.01611.84
5.4.300.0030.02111.83
5.4.290.0040.01611.78
5.4.280.0040.01811.84
5.4.270.0060.01511.77
5.4.260.0040.01911.72
5.4.250.0040.01711.77
5.4.240.0040.01611.72
5.4.230.0060.01511.72
5.4.220.0060.01511.82
5.4.210.0030.01711.81
5.4.200.0040.01711.76
5.4.190.0060.01511.75
5.4.180.0040.01611.71
5.4.170.0060.01711.87
5.4.160.0050.01511.72
5.4.150.0050.01811.79
5.4.140.0020.01911.71
5.4.130.0040.01711.69
5.4.120.0050.01811.62
5.4.110.0030.01911.66
5.4.100.0030.01911.59
5.4.90.0020.01711.59
5.4.80.0040.01711.73
5.4.70.0030.01911.65
5.4.60.0060.01411.62
5.4.50.0040.01911.59
5.4.40.0050.01611.59
5.4.30.0050.01711.71
5.4.20.0070.01611.63
5.4.10.0060.01611.59
5.4.00.0040.01711.47
5.3.290.0050.01711.85
5.3.280.0070.01511.82
5.3.270.0040.01811.83
5.3.260.0040.01811.83
5.3.250.0100.01711.83
5.3.240.0030.01711.83
5.3.230.0060.01511.82
5.3.220.0030.01811.81
5.3.210.0070.01511.81
5.3.200.0070.01511.81
5.3.190.0040.01711.81
5.3.180.0040.01711.81
5.3.170.0050.01711.81
5.3.160.0050.01511.81
5.3.150.0040.01911.81
5.3.140.0040.02011.81
5.3.130.0050.01811.81
5.3.120.0090.01511.80
5.3.110.0040.01611.80
5.3.100.0040.01611.63
5.3.90.0060.01611.62
5.3.80.0050.01911.62
5.3.70.0080.01411.62
5.3.60.0030.01711.61
5.3.50.0060.01211.59
5.3.40.0050.01711.59
5.3.30.0040.01811.58
5.3.20.0050.01711.51
5.3.10.0060.01611.50
5.3.00.0040.01711.49
5.2.170.0040.0329.23
5.2.160.0070.0379.22
5.2.150.0090.0479.22
5.2.140.0050.0459.22
5.2.130.0070.0419.18
5.2.120.0030.0309.18
5.2.110.0050.0339.19
5.2.100.0060.0469.18
5.2.90.0070.0419.18
5.2.80.0130.0679.19
5.2.70.0070.0429.18
5.2.60.0080.0339.13
5.2.50.0070.0299.10
5.2.40.0050.0329.07
5.2.30.0050.0389.05
5.2.20.0040.0339.04
5.2.10.0060.0468.95
5.2.00.0140.0758.82
5.1.60.0080.0528.10
5.1.50.0130.0358.09
5.1.40.0080.0488.07
5.1.30.0050.0388.43
5.1.20.0080.0418.45
5.1.10.0060.0408.17
5.1.00.0120.0508.17
5.0.50.0040.0286.65
5.0.40.0030.0296.50
5.0.30.0050.0416.32
5.0.20.0050.0266.29
5.0.10.0040.0296.27
5.0.00.0050.0326.26
4.4.90.0050.0194.78
4.4.80.0030.0194.76
4.4.70.0100.0464.76
4.4.60.0030.0184.75
4.4.50.0010.0194.77
4.4.40.0080.0394.71
4.4.30.0080.0394.76
4.4.20.0010.0184.85
4.4.10.0020.0194.84
4.4.00.0050.0274.75
4.3.110.0030.0174.67
4.3.100.0020.0174.66
4.3.90.0100.0284.63
4.3.80.0070.0564.58
4.3.70.0040.0404.63
4.3.60.0080.0374.63
4.3.50.0080.0264.63
4.3.40.0070.0424.54
4.3.30.0010.0243.30
4.3.20.0040.0363.28
4.3.10.0000.0513.23
4.3.00.0000.0277.56

preferences:
46.35 ms | 400 KiB | 5 Q