3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Aareon_Abstract { public static $instance; public static function getInstance() { if (self::$instance === null) { self::$instance = new static(); } return self::$instance; } } class Aareon_MaterializedView extends Aareon_Abstract { public static $instance; } class Sample extends Aareon_Abstract { } echo get_class(Aareon_Abstract::getInstance()) . PHP_EOL; echo get_class(Aareon_MaterializedView::getInstance()) . PHP_EOL; //As you can see, a new B is instantiated here, because B::$instance is a priority over A::$instance. echo get_class(Aareon_Abstract::getInstance()) . PHP_EOL; A::$instance = null; echo PHP_EOL; echo get_class(Aareon_Abstract::getInstance()) . PHP_EOL; echo get_class(Sample::getInstance()) . PHP_EOL; //But here, there is no C::$instance, so let's check the A::$instance which is not empty. echo get_class(Aareon_Abstract::getInstance()) . PHP_EOL;

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)
8.3.60.0100.01018.43
8.3.50.0110.00722.12
8.3.40.0110.00418.77
8.3.30.0180.00418.80
8.3.20.0080.00020.20
8.3.10.0040.00421.97
8.3.00.0040.00420.29
8.2.180.0180.00318.55
8.2.170.0140.00722.96
8.2.160.0100.01022.13
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0030.00526.16
8.2.120.0030.00519.76
8.2.110.0040.00420.64
8.2.100.0090.00317.72
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0000.01017.80
8.2.50.0030.00518.07
8.2.40.0080.00319.04
8.2.30.0080.00020.57
8.2.20.0050.00317.77
8.2.10.0040.00418.11
8.2.00.0040.00417.92
8.1.280.0060.00925.92
8.1.270.0050.00323.92
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0040.00423.84
8.1.230.0060.00620.88
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0000.00917.50
8.1.190.0080.00017.38
8.1.180.0080.00018.10
8.1.170.0050.00318.63
8.1.160.0000.00821.94
8.1.150.0000.00718.91
8.1.140.0040.00417.50
8.1.130.0050.00317.75
8.1.120.0000.00817.49
8.1.110.0000.00717.54
8.1.100.0000.00717.54
8.1.90.0030.00417.55
8.1.80.0070.00017.52
8.1.70.0030.00317.39
8.1.60.0070.00017.68
8.1.50.0000.00817.54
8.1.40.0090.00317.62
8.1.30.0040.00417.65
8.1.20.0000.00717.71
8.1.10.0040.00417.54
8.1.00.0000.00717.48
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0030.00318.55
8.0.270.0050.00217.31
8.0.260.0070.00017.30
8.0.250.0000.00716.94
8.0.240.0030.00316.93
8.0.230.0000.00817.02
8.0.220.0040.00317.01
8.0.210.0060.00317.02
8.0.200.0030.00317.08
8.0.190.0080.00017.00
8.0.180.0060.00317.07
8.0.170.0040.00417.03
8.0.160.0000.00717.01
8.0.150.0040.00416.91
8.0.140.0060.00316.95
8.0.130.0000.00513.32
8.0.120.0000.00916.93
8.0.110.0070.00016.98
8.0.100.0070.00016.91
8.0.90.0030.00316.80
8.0.80.0080.00616.93
8.0.70.0040.00416.98
8.0.60.0050.00216.83
8.0.50.0000.00716.91
8.0.30.0090.00916.95
8.0.20.0130.00817.40
8.0.10.0040.00416.93
8.0.00.0100.00716.66
7.4.330.0000.00515.08
7.4.320.0000.00616.58
7.4.300.0060.00016.64
7.4.290.0080.00316.52
7.4.280.0000.00816.48
7.4.270.0030.00316.55
7.4.260.0000.00816.39
7.4.250.0060.00316.52
7.4.240.0070.00016.54
7.4.230.0040.00416.67
7.4.220.0030.01916.48
7.4.210.0120.00616.65
7.4.200.0070.00016.54
7.4.160.0130.00316.68
7.4.150.0040.01417.40
7.4.140.0130.00817.86
7.4.130.0230.01516.57
7.4.120.0080.00916.63
7.4.110.0100.01316.58
7.4.100.0100.01316.66
7.4.90.0080.00816.70
7.4.80.0160.00619.39
7.4.70.0120.00816.74
7.4.60.0070.01016.52
7.4.50.0000.00416.25
7.4.40.0090.00916.57
7.4.30.0080.01116.61
7.4.00.0050.01114.88
7.3.330.0030.00313.37
7.3.320.0000.00613.16
7.3.310.0080.00016.45
7.3.300.0070.00016.23
7.3.290.0080.00716.36
7.3.280.0130.00716.36
7.3.270.0120.00617.40
7.3.260.0060.01016.64
7.3.250.0090.00816.48
7.3.240.0100.01116.55
7.3.230.0110.00716.39
7.3.210.0090.00816.43
7.3.200.0120.00616.37
7.3.190.0090.00616.34
7.3.180.0080.00816.43
7.3.170.0130.00316.55
7.3.160.0130.00316.38
7.3.120.0060.01214.93
7.3.110.0040.00814.82
7.3.100.0060.01014.94
7.3.90.0030.00914.64
7.3.80.0040.00814.71
7.3.70.0030.01314.68
7.3.60.0090.00614.80
7.3.50.0040.00714.80
7.3.40.0000.01014.75
7.3.30.0070.01014.88
7.3.20.0100.00716.61
7.3.10.0080.00416.82
7.3.00.0100.00716.55
7.2.330.0040.01416.69
7.2.320.0090.00916.71
7.2.310.0090.00616.74
7.2.300.0060.01016.83
7.2.290.0100.00616.63
7.2.250.0100.01014.95
7.2.240.0070.01315.20
7.2.230.0070.00714.93
7.2.220.0090.00614.97
7.2.210.0000.01315.11
7.2.200.0070.00715.11
7.2.190.0070.01015.06
7.2.180.0100.00614.75
7.2.170.0070.00414.89
7.2.130.0140.01116.73
7.2.120.0090.00917.09
7.2.110.0110.01117.05
7.2.100.0140.00316.95
7.2.90.0080.00416.70
7.2.80.0070.01116.79
7.2.70.0090.00916.82
7.2.60.0110.00616.93
7.2.50.0070.00716.67
7.2.40.0120.00616.88
7.2.30.0120.00916.91
7.2.20.0110.00716.66
7.2.10.0130.00716.84
7.2.00.0080.00618.07
7.1.330.0040.01015.77
7.1.320.0040.01215.85
7.1.310.0060.00915.55
7.1.300.0120.00315.73
7.1.290.0030.01415.54
7.1.280.0060.00315.80
7.1.270.0100.00615.64
7.1.260.0080.00815.89
7.1.250.0130.01015.66
7.1.240.0110.00415.38
7.1.230.0090.00615.46
7.1.220.0060.01015.88
7.1.210.0180.00015.47
7.1.200.0120.00115.62
7.1.190.0130.00315.50
7.1.180.0100.00715.72
7.1.170.0110.00415.71
7.1.160.0160.00015.77
7.1.150.0070.00715.50
7.1.140.0120.00315.62
7.1.130.0130.00315.86
7.1.120.0120.00415.58
7.1.110.0130.00615.84
7.1.100.0050.01016.85
7.1.90.0130.00715.61
7.1.80.0140.00315.69
7.1.70.0040.00816.42
7.1.60.0100.01017.42
7.1.50.0050.01416.12
7.1.40.0030.00615.44
7.1.30.0130.00615.41
7.1.20.0040.01115.37
7.1.10.0100.00615.77
7.1.00.0050.03918.84
7.0.330.0080.00415.07
7.0.320.0130.00315.54
7.0.310.0100.00715.39
7.0.300.0070.00715.20
7.0.290.0100.00715.05
7.0.280.0000.01415.25
7.0.270.0100.00715.21
7.0.260.0100.00515.23
7.0.250.0120.00315.41
7.0.240.0120.00615.32
7.0.230.0130.00715.46
7.0.220.0110.00315.25
7.0.210.0030.01015.49
7.0.200.0030.00815.76
7.0.190.0080.00814.93
7.0.180.0100.01015.47
7.0.170.0080.00815.12
7.0.160.0030.01315.24
7.0.150.0100.01015.17
7.0.140.0090.00615.46
7.0.130.0070.00715.22
7.0.120.0070.01515.58
7.0.110.0120.00615.37
7.0.100.0080.00715.45
7.0.90.0080.01215.48
7.0.80.0070.01014.96
7.0.70.0120.00015.04
7.0.60.0080.03817.52
7.0.50.0080.04316.54
7.0.40.0080.04316.83
7.0.30.0170.02316.72
7.0.20.0200.02916.82
7.0.10.0030.04716.69
7.0.00.0030.02416.83
5.6.380.0070.00714.34
5.6.370.0130.00813.97
5.6.360.0000.01514.00
5.6.350.0030.01013.96
5.6.340.0060.00614.13
5.6.330.0080.00814.25
5.6.320.0140.00314.61
5.6.310.0060.00613.92
5.6.300.0110.00414.44
5.6.290.0030.01014.25
5.6.280.0050.04017.71
5.6.270.0070.00714.53
5.6.260.0030.00914.67
5.6.250.0110.00414.14
5.6.240.0030.01014.28
5.6.230.0050.01114.54
5.6.220.0100.00314.24
5.6.210.0120.03517.59
5.6.200.0100.03116.27
5.6.190.0070.03217.46
5.6.180.0190.02717.49
5.6.170.0080.02917.23
5.6.160.0120.03717.43
5.6.150.0100.02716.23
5.6.140.0070.03716.33
5.6.130.0050.04616.29
5.6.120.0170.03317.71
5.6.110.0070.04317.74
5.6.100.0060.04617.66
5.6.90.0040.05117.51
5.6.80.0070.04417.23
5.6.70.0090.00914.53
5.6.60.0070.00714.16
5.6.50.0060.00914.30
5.6.40.0000.01214.13
5.6.30.0040.00814.13
5.6.20.0070.00714.15
5.6.10.0070.00514.13
5.6.00.0060.00314.33
5.5.380.0000.00711.27
5.5.370.0030.00611.35
5.5.360.0090.00311.44
5.5.350.0050.03015.88
5.5.340.0090.02014.58
5.5.330.0080.01815.76
5.5.320.0130.02215.89
5.5.310.0150.02815.78
5.5.300.0030.04514.56
5.5.290.0070.03714.69
5.5.280.0020.02416.06
5.5.270.0050.04515.99
5.5.260.0050.04615.98
5.5.250.0080.04315.96
5.5.240.0070.03515.73
5.5.230.0060.00611.18
5.5.220.0000.01111.18
5.5.210.0060.00611.18
5.5.200.0000.00711.18
5.5.190.0050.00311.18
5.5.180.0000.01011.22
5.5.170.0030.00311.18
5.5.160.0060.00611.18
5.5.150.0040.00711.34
5.5.140.0030.00611.18
5.5.130.0020.00511.18
5.5.120.0040.00811.18
5.5.110.0000.01211.18
5.5.100.0040.00411.18
5.5.90.0040.00811.18
5.5.80.0040.00411.18
5.5.70.0060.00011.26
5.5.60.0050.00511.29
5.5.50.0060.00311.29
5.5.40.0030.00611.18
5.5.30.0040.00411.18
5.5.20.0070.00311.20
5.5.10.0070.00411.18
5.5.00.0060.00611.25
5.4.450.0340.03415.18
5.4.440.0370.03015.31
5.4.430.0380.03015.28
5.4.420.0420.02315.30
5.4.410.0420.03515.34
5.4.400.0470.02815.12
5.4.390.0420.04315.14
5.4.380.0390.02715.22
5.4.370.0390.02615.13
5.4.360.0440.02715.13
5.4.350.0500.02515.13
5.4.340.0400.02815.10
5.4.330.0070.00511.18
5.4.320.0370.03015.13
5.4.310.0420.02315.19
5.4.300.0390.02615.01
5.4.290.0340.03215.12
5.4.280.0370.03215.05
5.4.270.0390.02815.02
5.4.260.0410.03115.09
5.4.250.0340.03215.11
5.4.240.0370.03215.10
5.4.230.0360.03015.21
5.4.220.0370.03015.19
5.4.210.0380.02815.12
5.4.200.0550.03315.05
5.4.190.0530.02715.18
5.4.180.0510.03015.05
5.4.170.0460.03115.13
5.4.160.0500.02915.08
5.4.150.0510.03515.18
5.4.140.0360.02913.85
5.4.130.0360.02413.79
5.4.120.0370.02713.81
5.4.110.0370.02713.91
5.4.100.0380.03113.90
5.4.90.0300.03113.75
5.4.80.0350.02713.74
5.4.70.0150.03213.89
5.4.60.0070.02513.76
5.4.50.0020.01913.84
5.4.40.0120.01713.86
5.4.30.0150.01713.80
5.4.20.0160.03613.87
5.4.10.0030.00911.18
5.4.00.0030.00711.18

preferences:
43.72 ms | 401 KiB | 5 Q