3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump([strlen('фыв'), mb_strlen('фыв')]);die; abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>

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)
8.3.70.0160.00318.30
8.3.60.0110.00418.30
8.3.50.0130.00521.14
8.3.40.0090.00618.55
8.3.30.0070.00718.84
8.3.20.0080.01220.34
8.3.10.0040.00423.66
8.3.00.0000.00922.43
8.2.190.0160.00018.16
8.2.180.0140.00716.63
8.2.170.0070.00722.96
8.2.160.0100.00320.27
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00617.25
8.2.110.0000.01022.16
8.2.100.0090.00318.03
8.2.90.0040.00417.97
8.2.80.0000.00919.10
8.2.70.0030.00517.75
8.2.60.0000.01018.04
8.2.50.0030.00618.07
8.2.40.0000.00820.84
8.2.30.0000.00718.13
8.2.20.0080.00017.63
8.2.10.0040.00418.08
8.2.00.0000.00718.05
8.1.280.0100.00725.92
8.1.270.0000.00820.38
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00322.21
8.1.230.0120.00021.04
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00417.23
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0030.00518.73
8.1.160.0000.00721.89
8.1.150.0030.00518.88
8.1.140.0080.00017.33
8.1.130.0030.00517.55
8.1.120.0020.00517.46
8.1.110.0040.00417.30
8.1.100.0070.00017.24
8.1.90.0040.00417.31
8.1.80.0050.00217.46
8.1.70.0000.00717.40
8.1.60.0000.00817.60
8.1.50.0030.00517.46
8.1.40.0080.00017.51
8.1.30.0000.00817.59
8.1.20.0040.00417.62
8.1.10.0060.00317.47
8.1.00.0000.00817.36
8.0.300.0000.00720.16
8.0.290.0000.00916.75
8.0.280.0050.00318.48
8.0.270.0040.00417.18
8.0.260.0030.00317.38
8.0.250.0050.00317.07
8.0.240.0030.00316.91
8.0.230.0030.00717.00
8.0.220.0030.00316.96
8.0.210.0070.00016.84
8.0.200.0000.00617.04
8.0.190.0040.00416.96
8.0.180.0030.00516.98
8.0.170.0000.00816.86
8.0.160.0030.00316.93
8.0.150.0030.00316.89
8.0.140.0030.00316.98
8.0.130.0050.00013.36
8.0.120.0060.00317.03
8.0.110.0030.00516.86
8.0.100.0040.00416.78
8.0.90.0030.00416.81
8.0.80.0120.00316.96
8.0.70.0000.00716.75
8.0.60.0050.00216.84
8.0.50.0050.00317.00
8.0.30.0070.01317.06
8.0.20.0140.00817.40
8.0.10.0000.00716.88
8.0.00.0060.01116.82
7.4.330.0050.00015.08
7.4.320.0000.00616.52
7.4.300.0030.00316.45
7.4.290.0000.01016.50
7.4.280.0000.00916.42
7.4.270.0050.00216.47
7.4.260.0000.00916.52
7.4.250.0050.00316.27
7.4.240.0040.00316.47
7.4.230.0070.00016.56
7.4.220.0100.01016.38
7.4.210.0090.00616.56
7.4.200.0070.00016.34
7.4.160.0030.01316.70
7.4.150.0110.00717.40
7.4.140.0170.00717.86
7.4.130.0100.00616.59
7.4.120.0080.00816.44
7.4.110.0140.00316.51
7.4.100.0070.01416.47
7.4.90.0140.00416.22
7.4.80.0080.01119.39
7.4.70.0100.00616.48
7.4.60.0120.00616.46
7.4.50.0000.00816.30
7.4.40.0160.00616.58
7.4.30.0140.00316.50
7.4.00.0040.01015.02
7.3.330.0000.00513.14
7.3.320.0000.00613.29
7.3.310.0030.00316.07
7.3.300.0000.00616.14
7.3.290.0090.00716.30
7.3.280.0130.00716.25
7.3.270.0030.01417.40
7.3.260.0100.00716.57
7.3.250.0120.00716.42
7.3.240.0120.00916.44
7.3.230.0140.00616.39
7.3.210.0110.00716.36
7.3.200.0120.00919.39
7.3.190.0050.01116.41
7.3.180.0090.00616.54
7.3.170.0040.01416.27
7.3.160.0110.00916.30
7.3.120.0080.00814.82
7.3.110.0070.00714.59
7.3.100.0110.00414.60
7.3.90.0100.00314.63
7.3.80.0060.01014.84
7.3.70.0070.00714.80
7.3.60.0030.01014.48
7.3.50.0110.00414.64
7.3.40.0030.00614.67
7.3.30.0000.01614.64
7.3.20.0060.00916.60
7.3.10.0090.00516.59
7.3.00.0100.00616.58
7.2.330.0090.00916.81
7.2.320.0030.01616.51
7.2.310.0140.00616.50
7.2.300.0080.00816.65
7.2.290.0110.00716.66
7.2.250.0070.01015.06
7.2.240.0060.01314.60
7.2.230.0060.01315.03
7.2.220.0060.01015.22
7.2.210.0040.01114.68
7.2.200.0030.01315.20
7.2.190.0070.01014.80
7.2.180.0110.00714.93
7.2.170.0060.00614.84
7.2.130.0070.01116.81
7.2.120.0030.00617.03
7.2.110.0050.01316.81
7.2.100.0030.01316.64
7.2.90.0090.00616.82
7.2.80.0150.00316.91
7.2.70.0000.01416.88
7.2.60.0060.00716.86
7.2.50.0090.00916.90
7.2.40.0120.00917.14
7.2.30.0080.00816.73
7.2.20.0140.00417.14
7.2.10.0100.00716.64
7.2.00.0140.00716.61
7.1.330.0120.00315.77
7.1.320.0060.00615.83
7.1.310.0070.00415.50
7.1.300.0070.00315.74
7.1.290.0040.01115.64
7.1.280.0030.01315.74
7.1.270.0060.00615.72
7.1.260.0000.01715.90
7.1.250.0040.00815.77
7.1.200.0000.01415.40
7.1.100.0070.00317.71
7.1.70.0030.01417.03
7.1.60.0100.01320.03
7.1.50.0000.02216.65
7.1.00.0030.07722.52
7.0.200.0450.00614.97
7.0.60.0030.06019.87
7.0.50.0070.04318.00
7.0.40.0230.07320.14
7.0.30.0200.05020.23
7.0.20.0270.05020.21
7.0.10.0000.07020.07
7.0.00.0030.06320.24
5.6.210.0230.07320.77
5.6.200.0170.06018.17
5.6.190.0130.08020.63
5.6.180.0370.06020.52
5.6.170.0130.04320.42
5.6.160.0100.05720.57
5.6.150.0070.08318.22
5.6.140.0030.05318.15
5.6.130.0070.04318.18
5.6.120.0000.05721.05
5.6.110.0000.07720.99
5.6.100.0070.07320.99
5.6.90.0100.03720.88
5.6.80.0130.07320.51
5.5.350.3800.04020.41
5.5.340.0030.04718.02
5.5.330.0070.04020.21
5.5.320.0070.08720.42
5.5.310.0470.06720.30
5.5.300.0100.04317.98
5.5.290.0070.08317.98
5.5.280.0130.07720.78
5.5.270.0070.05720.98
5.5.260.0100.08020.88
5.5.250.0070.07020.59
5.5.240.0130.07320.37
5.4.450.0030.08019.31
5.4.440.3730.04019.39
5.4.430.3430.03719.17
5.4.420.3600.03319.54
5.4.410.3670.03719.14
5.4.400.4170.04018.89
5.4.390.3800.02718.98
5.4.380.3600.04019.21
5.4.370.3770.03719.09
5.4.360.3730.03319.13
5.4.350.3700.04319.22
5.4.340.4070.03719.09
5.4.320.3830.03719.24
5.4.310.3670.03319.00
5.4.300.3530.03719.04
5.4.290.3430.04019.09
5.4.280.3530.03318.98
5.4.270.3370.04019.14
5.4.260.4070.03319.19
5.4.250.3630.04019.25
5.4.240.4100.03318.93
5.4.230.4470.03319.31
5.4.220.4470.03718.94
5.4.210.4300.03318.98
5.4.200.3730.04019.05
5.4.190.3770.03718.86
5.4.180.4200.04719.15
5.4.170.3570.03718.94
5.4.160.4330.03719.06
5.4.150.4300.03319.11
5.4.140.4270.04016.48
5.4.130.3500.03316.43
5.4.120.3670.03716.55
5.4.110.4530.02316.42
5.4.100.4330.03716.24
5.4.90.4530.04316.50
5.4.80.4470.04316.58
5.4.70.3570.03316.58

preferences:
17.41 ms | 401 KiB | 5 Q