3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { protected static $_instance; protected function __construct() {} public static function getInstance() { if (self::$_instance === null) { self::$_instance = new static(); } return self::$_instance; } } class B extends A { public function hi() { echo 'HI'; } } echo get_class(B::getInstance()); $b = B::getInstance(); $b->hi();

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)
8.3.60.0120.00618.31
8.3.50.0140.00521.16
8.3.40.0110.00318.84
8.3.30.0090.00618.67
8.3.20.0000.01420.29
8.3.10.0000.00721.73
8.3.00.0000.00817.68
8.2.180.0150.00018.29
8.2.170.0070.00722.96
8.2.160.0070.01320.14
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0030.00619.69
8.2.110.0030.00619.27
8.2.100.0070.00417.91
8.2.90.0050.00319.05
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0060.00318.04
8.2.50.0040.00418.07
8.2.40.0060.00319.45
8.2.30.0000.00720.50
8.2.20.0080.00017.70
8.2.10.0040.00417.88
8.2.00.0000.00817.86
8.1.280.0100.00725.92
8.1.270.0080.00023.72
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0080.00023.95
8.1.230.0060.00617.52
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0000.01016.99
8.1.190.0000.00817.35
8.1.180.0000.00718.10
8.1.170.0080.00018.58
8.1.160.0070.00021.82
8.1.150.0040.00418.82
8.1.140.0050.00317.44
8.1.130.0070.00017.64
8.1.120.0030.00317.45
8.1.110.0030.00617.44
8.1.100.0070.00017.41
8.1.90.0040.00417.33
8.1.80.0030.00617.30
8.1.70.0040.00417.27
8.1.60.0030.00517.56
8.1.50.0040.00817.52
8.1.40.0040.00417.57
8.1.30.0030.00617.70
8.1.20.0000.00717.65
8.1.10.0040.00417.41
8.1.00.0030.00517.40
8.0.300.0070.00018.77
8.0.290.0060.00316.75
8.0.280.0030.00318.45
8.0.270.0030.00317.31
8.0.260.0060.00017.27
8.0.250.0050.00316.86
8.0.240.0050.00216.96
8.0.230.0000.00816.90
8.0.220.0070.00416.88
8.0.210.0050.00316.72
8.0.200.0030.00316.79
8.0.190.0030.00616.83
8.0.180.0070.00016.74
8.0.170.0040.00416.90
8.0.160.0040.00416.89
8.0.150.0040.00416.66
8.0.140.0000.01116.84
8.0.130.0000.00613.22
8.0.120.0040.00416.80
8.0.110.0040.00416.89
8.0.100.0000.00816.87
8.0.90.0000.00816.62
8.0.80.0080.00816.75
8.0.70.0040.00416.74
8.0.60.0070.00016.86
8.0.50.0000.00716.73
8.0.30.0110.00817.08
8.0.20.0140.00517.40
8.0.10.0000.00716.84
8.0.00.0080.01216.99
7.4.330.0000.00615.08
7.4.320.0000.00616.50
7.4.300.0090.00016.49
7.4.290.0040.00416.50
7.4.280.0040.00416.60
7.4.270.0000.00816.50
7.4.260.0000.00716.38
7.4.250.0040.00416.53
7.4.240.0020.00516.47
7.4.230.0000.00716.46
7.4.220.0120.01016.62
7.4.210.0090.01016.53
7.4.200.0050.00216.66
7.4.160.0080.00816.53
7.4.150.0060.01217.40
7.4.140.0090.01117.86
7.4.130.0090.00816.33
7.4.120.0100.00816.63
7.4.110.0060.01616.53
7.4.100.0070.01016.70
7.4.90.0130.00316.49
7.4.80.0060.01219.39
7.4.70.0030.01316.41
7.4.60.0060.01216.66
7.4.50.0080.00016.54
7.4.40.0110.00616.58
7.4.30.0070.01016.47
7.4.00.0060.01015.03
7.3.330.0030.00313.34
7.3.320.0000.00513.32
7.3.310.0000.00716.27
7.3.300.0030.00316.18
7.3.290.0030.01216.30
7.3.280.0110.00516.26
7.3.270.0150.00417.40
7.3.260.0110.00616.23
7.3.250.0100.00616.31
7.3.240.0070.01016.27
7.3.230.0140.00316.57
7.3.210.0070.01016.38
7.3.200.0100.00716.47
7.3.190.0160.00016.53
7.3.180.0030.01216.55
7.3.170.0000.01616.48
7.3.160.0100.01016.23
7.3.120.0030.01514.78
7.3.110.0100.00614.73
7.3.100.0110.00214.59
7.3.90.0030.00614.75
7.3.80.0070.00914.78
7.3.70.0080.00614.72
7.3.60.0050.00514.58
7.3.50.0050.00814.59
7.3.40.0030.01114.81
7.3.30.0060.00714.65
7.3.20.0100.00516.59
7.3.10.0080.00716.45
7.3.00.0070.00616.68
7.2.330.0060.01116.73
7.2.320.0090.01216.50
7.2.310.0120.00316.66
7.2.300.0130.00316.74
7.2.290.0090.01216.59
7.2.250.0060.01115.11
7.2.240.0100.00714.90
7.2.230.0040.01215.02
7.2.220.0060.00615.15
7.2.210.0050.00714.90
7.2.200.0060.00715.06
7.2.190.0040.00714.83
7.2.180.0050.00715.06
7.2.170.0030.01014.97
7.2.130.0110.00417.00
7.2.120.0030.00716.98
7.2.110.0040.01216.93
7.2.100.0090.00316.78
7.2.90.0070.00717.03
7.2.80.0150.00316.82
7.2.70.0000.01517.02
7.2.60.0040.00716.94
7.2.50.0110.00716.97
7.2.40.0030.01316.66
7.2.30.0060.00616.96
7.2.20.0150.00016.98
7.2.10.0000.01317.06
7.2.00.0110.00718.21
7.1.330.0030.01015.56
7.1.320.0070.00915.56
7.1.310.0080.00715.55
7.1.300.0080.00415.72
7.1.290.0070.00415.63
7.1.280.0060.00915.64
7.1.270.0050.00815.64
7.1.260.0060.00515.74
7.1.250.0030.01015.74
7.1.200.0070.00715.47
7.1.100.0040.01118.08
7.1.70.0000.00717.15
7.1.60.0180.00719.19
7.1.50.0250.00334.87
7.1.00.0100.07022.39
7.0.200.0050.00316.72
7.0.60.0030.04319.95
7.0.50.0070.04717.87
7.0.40.0100.03720.13
7.0.30.0230.06320.09
7.0.20.0300.07720.16
7.0.10.0030.04320.05
7.0.00.0030.04720.24
5.6.280.0070.05321.03
5.6.210.0070.05720.75
5.6.200.0030.05318.24
5.6.190.0070.09020.52
5.6.180.0300.07320.77
5.6.170.0270.05020.71
5.6.160.0070.03720.54
5.6.150.0000.07318.11
5.6.140.0000.06318.21
5.6.130.0100.08018.27
5.6.120.0070.03721.12
5.6.110.0070.06021.15
5.6.100.0070.06721.04
5.6.90.0000.04720.98
5.6.80.0070.08320.41
5.5.350.0070.08020.50
5.5.340.0030.05017.98
5.5.330.0070.05320.48
5.5.320.0430.07020.20
5.5.310.0230.06320.18
5.5.300.0070.08017.93
5.5.290.0030.09018.04
5.5.280.0070.04020.77
5.5.270.0030.06720.76
5.5.260.0130.08020.86
5.5.250.0100.08720.79
5.5.240.0030.08320.16
5.4.450.0100.05719.63
5.4.440.0070.06019.69
5.4.430.0070.05719.43
5.4.420.0100.06019.58
5.4.410.0130.05019.48
5.4.400.0070.06019.23
5.4.390.0100.05718.98
5.4.380.0100.05319.37
5.4.370.0100.05319.28
5.4.360.0200.04319.06
5.4.350.0170.04719.28
5.4.340.0030.06019.25
5.4.320.0270.04719.30
5.4.310.0100.06719.22
5.4.300.0030.06018.86
5.4.290.0200.05019.13
5.4.280.0200.04719.23
5.4.270.0130.05019.30
5.4.260.0100.05019.25
5.4.250.0070.05719.13
5.4.240.0030.06019.25
5.4.230.0100.06319.14
5.4.220.0200.05019.14
5.4.210.0170.07319.16
5.4.200.0200.04319.25
5.4.190.0270.06019.27
5.4.180.0170.07319.30
5.4.170.0330.03319.16
5.4.160.0130.05319.23
5.4.150.0070.06319.13
5.4.140.0030.06016.41
5.4.130.0170.04716.38
5.4.120.0170.07016.39
5.4.110.0270.06316.50
5.4.100.0100.05716.52
5.4.90.0170.04716.66
5.4.80.0070.05016.55
5.4.70.0230.05316.49
5.4.60.0130.05016.43
5.4.50.0000.07716.22
5.4.40.0130.05316.51
5.4.30.0300.04716.37
5.4.20.0230.03016.53

preferences:
40.62 ms | 401 KiB | 5 Q