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run code in 300+ PHP versions simultaneously
<?php class A { protected $x = 10; public function myMethod($x=0) { return $this->x; } } class B extends A { public function myMethod($x=0) { return 2 * $this->x; } } What is the output of the following code: $m = new B(5); echo $m->myMethod();

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)
5.4.320.0030.03912.53
5.4.310.0040.03912.52
5.4.300.0050.03712.52
5.4.290.0070.04312.52
5.4.280.0040.03712.41
5.4.270.0050.03912.41
5.4.260.0040.04112.41
5.4.250.0060.03712.41
5.4.240.0070.03612.41
5.4.230.0080.04712.40
5.4.220.0110.04512.40
5.4.210.0060.05012.40
5.4.200.0070.05312.41
5.4.190.0090.04912.40
5.4.180.0050.04912.40
5.4.170.0090.04912.41
5.4.160.0060.04512.41
5.4.150.0090.04412.40
5.4.140.0100.04912.09
5.4.130.0090.04312.07
5.4.120.0040.03712.04
5.4.110.0020.03912.04
5.4.100.0070.03812.04
5.4.90.0050.04212.03
5.4.80.0090.03612.04
5.4.70.0050.03512.03
5.4.60.0060.04012.03
5.4.50.0070.03612.03
5.4.40.0090.04912.02
5.4.30.0110.06612.01
5.4.20.0100.06512.01
5.4.10.0060.05112.02
5.4.00.0060.05011.50
5.3.290.0070.05412.80
5.3.280.0070.05112.71
5.3.270.0050.04212.72
5.3.260.0070.04412.72
5.3.250.0040.04112.72
5.3.240.0080.03612.72
5.3.230.0070.04112.71
5.3.220.0090.03312.68
5.3.210.0070.03812.68
5.3.200.0060.03612.68
5.3.190.0070.04212.68
5.3.180.0090.04512.67
5.3.170.0050.04512.67
5.3.160.0090.03412.67
5.3.150.0070.03712.67
5.3.140.0060.03812.66
5.3.130.0080.03812.66
5.3.120.0070.05012.65
5.3.110.0110.04612.66
5.3.100.0050.03712.13
5.3.90.0070.04712.11
5.3.80.0090.03912.10
5.3.70.0080.04012.10
5.3.60.0080.03912.09
5.3.50.0080.03712.03
5.3.40.0090.03312.03
5.3.30.0070.03311.99
5.3.20.0080.03211.77
5.3.10.0040.03511.73
5.3.00.0080.03311.72
5.2.170.0050.0309.23
5.2.160.0030.0309.22
5.2.150.0020.0339.22
5.2.140.0090.0319.22
5.2.130.0060.0359.18
5.2.120.0080.0289.18
5.2.110.0030.0309.19
5.2.100.0040.0289.19
5.2.90.0060.0279.18
5.2.80.0040.0309.18
5.2.70.0060.0299.18
5.2.60.0050.0299.13
5.2.50.0070.0289.10
5.2.40.0040.0369.08
5.2.30.0020.0329.06
5.2.20.0060.0279.05
5.2.10.0050.0278.95
5.2.00.0040.0298.82
5.1.60.0070.0208.09
5.1.50.0030.0258.09
5.1.40.0060.0228.07
5.1.30.0050.0258.42
5.1.20.0030.0278.45
5.1.10.0090.0268.16
5.1.00.0040.0268.17
5.0.50.0020.0236.65
5.0.40.0050.0176.51
5.0.30.0030.0316.32
5.0.20.0040.0206.28
5.0.10.0050.0186.27
5.0.00.0040.0306.25
4.4.90.0030.0164.78
4.4.80.0040.0144.75
4.4.70.0040.0144.75
4.4.60.0040.0204.75
4.4.50.0030.0174.77
4.4.40.0020.0254.71
4.4.30.0030.0154.76
4.4.20.0040.0144.85
4.4.10.0020.0164.85
4.4.00.0020.0264.76
4.3.110.0040.0144.66
4.3.100.0010.0174.66
4.3.90.0020.0154.63
4.3.80.0040.0234.59
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0000.0184.63
4.3.40.0030.0264.54
4.3.30.0010.0173.30
4.3.20.0030.0153.28
4.3.10.0020.0163.24
4.3.00.0030.0236.85

preferences:
146.32 ms | 1394 KiB | 7 Q