3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $bar = 'baz'; public function getBar() { return $this->bar; } } class ClassicLazyFoo extends Foo { private $initialized = false; public function getBar() { $this->init(); return parent::getBar(); } private function init() { if ($this->initialized) { return; } \Closure::bind(function() { $this->bar = 'Loaded from DB!'; }, $this, get_parent_class($this))->__invoke(); } } var_dump((new ClassicLazyFoo())->getBar());

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)
8.3.40.0120.00318.84
8.3.30.0040.01119.14
8.3.20.0050.00320.21
8.3.10.0050.00320.44
8.3.00.0050.00319.26
8.2.170.0070.00722.96
8.2.160.0090.00920.35
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0000.00826.16
8.2.120.0050.00222.19
8.2.110.0000.00922.20
8.2.100.0070.00417.78
8.2.90.0040.00419.22
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0040.00418.04
8.2.50.0000.00818.07
8.2.40.0000.00918.22
8.2.30.0040.00419.33
8.2.20.0080.00017.68
8.2.10.0040.00418.16
8.2.00.0050.00317.57
8.1.270.0050.00323.82
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.10
8.1.230.0100.00019.16
8.1.220.0060.00317.79
8.1.210.0060.00318.77
8.1.200.0030.00617.23
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0030.00618.63
8.1.160.0070.00021.93
8.1.150.0030.00518.91
8.1.140.0000.00717.39
8.1.130.0000.00717.79
8.1.120.0000.00717.52
8.1.110.0030.00617.45
8.1.100.0000.00717.45
8.1.90.0000.00717.38
8.1.80.0000.00917.49
8.1.70.0070.00017.43
8.1.60.0030.00617.61
8.1.50.0060.00617.60
8.1.40.0040.00417.39
8.1.30.0040.00417.69
8.1.20.0040.00417.64
8.1.10.0070.00017.54
8.1.00.0030.00617.45
8.0.300.0000.00718.77
8.0.290.0030.00516.63
8.0.280.0000.00718.38
8.0.270.0030.00317.21
8.0.260.0030.00517.19
8.0.250.0000.00616.91
8.0.240.0000.00816.81
8.0.230.0030.00316.89
8.0.220.0040.00416.82
8.0.210.0000.00716.88
8.0.200.0000.00816.93
8.0.190.0040.00416.98
8.0.180.0000.00716.92
8.0.170.0050.00216.93
8.0.160.0030.00316.77
8.0.150.0000.00716.86
8.0.140.0050.00216.84
8.0.130.0030.00313.32
8.0.120.0060.00316.70
8.0.110.0040.00416.92
8.0.100.0000.00716.89
8.0.90.0030.00516.78
8.0.80.0140.00716.88
8.0.70.0040.00416.76
8.0.60.0070.00016.97
8.0.50.0000.00716.88
8.0.30.0090.01017.01
8.0.20.0120.00817.40
8.0.10.0080.00017.04
8.0.00.0100.01016.75
7.4.330.0050.00015.09
7.4.320.0030.00316.61
7.4.300.0030.00316.50
7.4.290.0070.00316.63
7.4.280.0030.00516.53
7.4.270.0070.00016.55
7.4.260.0030.00316.61
7.4.250.0040.00416.60
7.4.240.0020.00516.47
7.4.230.0040.00416.50
7.4.220.0000.01816.56
7.4.210.0030.01016.66
7.4.200.0070.00016.44
7.4.160.0080.00816.40
7.4.150.0130.00717.40
7.4.140.0140.00517.86
7.4.130.0080.00816.49
7.4.120.0090.00816.52
7.4.110.0060.01616.57
7.4.100.0110.00716.46
7.4.90.0030.01516.46
7.4.80.0040.01419.37
7.4.70.0040.01316.66
7.4.60.0090.00916.65
7.4.50.0000.00816.39
7.4.40.0030.01416.58
7.4.30.0070.01016.65
7.4.00.0060.01215.14
7.3.330.0000.00613.17
7.3.320.0050.00013.11
7.3.310.0000.00716.29
7.3.300.0000.00716.17
7.3.290.0150.00316.24
7.3.280.0060.00916.27
7.3.270.0100.00817.40
7.3.260.0080.00916.46
7.3.250.0080.01016.46
7.3.240.0090.00916.46
7.3.230.0060.01216.39
7.3.210.0070.01016.50
7.3.200.0090.00919.39
7.3.190.0100.00616.17
7.3.180.0110.00616.55
7.3.170.0000.01716.48
7.3.160.0070.01016.43
7.2.330.0070.01116.68
7.2.320.0100.00716.70
7.2.310.0040.01816.62
7.2.300.0080.00816.65
7.2.290.0070.01516.74
7.1.70.0030.00517.02
7.1.60.0070.01719.32
7.1.50.0100.01416.63
7.1.00.0170.06022.45
7.0.200.0000.00916.93
7.0.140.0030.07321.95
7.0.60.0000.04719.99
7.0.50.0030.04717.86
7.0.40.0170.08020.20
7.0.30.0230.08020.34
7.0.20.0100.04720.20
7.0.10.0100.07020.20
7.0.00.0100.08020.05
5.6.210.0170.07020.77
5.6.200.0030.04018.16
5.6.190.0030.04320.46
5.6.180.0470.06320.63
5.6.170.0370.07720.51
5.6.160.0000.05020.47
5.6.150.0000.09318.29
5.6.140.0130.07318.15
5.6.130.0170.06018.26
5.6.120.0070.06020.80
5.6.110.0070.04021.05
5.6.100.0100.07021.00
5.6.90.0130.06721.05
5.6.80.0000.04720.54
5.5.350.0070.05020.41
5.5.340.0030.08717.97
5.5.330.0000.04320.27
5.5.320.0330.06320.27
5.5.310.0330.05720.39
5.5.300.0000.04018.07
5.5.290.0070.08017.97
5.5.280.0070.04021.00
5.5.270.0030.09020.73
5.5.260.0100.05320.66
5.5.250.0100.08020.48
5.5.240.0200.08020.30
5.4.450.0900.04319.39
5.4.440.0830.05319.34
5.4.430.0970.06319.30
5.4.420.0670.00019.39
5.4.410.0630.00019.42
5.4.400.0630.00019.08
5.4.390.0630.00019.09
5.4.380.0330.05718.60
5.4.370.0330.05018.59
5.4.360.0300.05318.59
5.4.350.0400.05718.74
5.4.340.0130.07718.81
5.4.320.0050.03712.52
5.4.310.0050.03912.51
5.4.300.0040.03812.52
5.4.290.0080.03612.51
5.4.280.0060.03512.40
5.4.270.0060.03512.40
5.4.260.0080.03512.40
5.4.250.0060.03912.40
5.4.240.0070.03412.40
5.4.230.0090.03512.39
5.4.220.0070.03412.39
5.4.210.0020.03912.39
5.4.200.0040.03912.40
5.4.190.0060.03612.39
5.4.180.0030.03812.39
5.4.170.0040.03712.40
5.4.160.0060.03512.40
5.4.150.0130.03112.39
5.4.140.0080.03712.08
5.4.130.0050.03512.07
5.4.120.0080.03312.02
5.4.110.0070.03512.02
5.4.100.0050.03912.02
5.4.90.0060.03712.02
5.4.80.0050.03712.02
5.4.70.0090.03112.02
5.4.60.0040.03612.01
5.4.50.0070.03412.02
5.4.40.0060.03412.01
5.4.30.0060.04212.00
5.4.20.0130.03012.00
5.4.10.0060.03512.00
5.4.00.0080.03311.49
5.3.290.0070.03812.80
5.3.280.0100.03412.71
5.3.270.0060.03912.73
5.3.260.0080.03712.72
5.3.250.0060.03812.72
5.3.240.0050.04212.71
5.3.230.0060.04212.71
5.3.220.0030.04012.68
5.3.210.0090.03812.68
5.3.200.0060.03712.68
5.3.190.0070.03812.68
5.3.180.0050.03812.68
5.3.170.0070.03612.67
5.3.160.0050.03712.67
5.3.150.0070.03612.68
5.3.140.0060.04112.66
5.3.130.0070.03712.66
5.3.120.0030.04712.66
5.3.110.0030.04112.66
5.3.100.0090.05112.15
5.3.90.0060.03712.13
5.3.80.0050.03912.12
5.3.70.0050.04012.12
5.3.60.0080.05512.10
5.3.50.0060.03812.05
5.3.40.0050.03912.05
5.3.30.0090.04212.01
5.3.20.0090.04711.79
5.3.10.0060.04211.76
5.3.00.0060.03611.74
5.2.170.0020.0339.22
5.2.160.0040.0329.23
5.2.150.0040.0319.23
5.2.140.0040.0319.22
5.2.130.0040.0309.18
5.2.120.0040.0339.19
5.2.110.0040.0299.19
5.2.100.0070.0259.18
5.2.90.0050.0299.18
5.2.80.0050.0299.18
5.2.70.0060.0299.18
5.2.60.0040.0319.13
5.2.50.0020.0329.11
5.2.40.0060.0289.08
5.2.30.0080.0279.06
5.2.20.0030.0309.05
5.2.10.0060.0278.95
5.2.00.0060.0358.82
5.1.60.0060.0228.09
5.1.50.0040.0258.09
5.1.40.0020.0278.08
5.1.30.0060.0248.43
5.1.20.0040.0268.45
5.1.10.0060.0288.16
5.1.00.0050.0248.17
5.0.50.0050.0196.65
5.0.40.0070.0156.51
5.0.30.0070.0276.32
5.0.20.0030.0196.29
5.0.10.0020.0206.27
5.0.00.0010.0326.26
4.4.90.0040.0154.78
4.4.80.0030.0154.76
4.4.70.0010.0174.76
4.4.60.0010.0174.75
4.4.50.0040.0184.77
4.4.40.0040.0294.71
4.4.30.0060.0164.76
4.4.20.0020.0174.85
4.4.10.0040.0144.85
4.4.00.0030.0264.76
4.3.110.0000.0204.67
4.3.100.0040.0134.66
4.3.90.0020.0204.64
4.3.80.0030.0244.58
4.3.70.0040.0214.63
4.3.60.0020.0214.63
4.3.50.0040.0144.63
4.3.40.0020.0244.54
4.3.30.0030.0153.30
4.3.20.0010.0193.28
4.3.10.0030.0203.23
4.3.00.0030.01714.30

preferences:
37.88 ms | 400 KiB | 5 Q