3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $p1 = "secret"; public function B() { var_dump($this); // ${'t' . 'his'} = 'hidden'; // works ${'this'} = 'hidden?'; var_dump($this); var_dump($GLOBALS['this']); // class is global but $this is not since only refers to this particular object. $GLOBALS['this'] = 'lovely'; var_dump($this, $GLOBALS['this']); echo "{$GLOBALS['this']} $this {$this->p1}"; } } $a = new A; $a->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)
5.4.320.0090.03812.52
5.4.310.0040.04112.51
5.4.300.0050.04812.51
5.4.290.0130.03312.51
5.4.280.0130.03912.40
5.4.270.0050.04112.41
5.4.260.0070.03912.41
5.4.250.0060.04112.40
5.4.240.0040.03712.40
5.4.230.0060.04712.40
5.4.220.0120.04212.40
5.4.210.0090.04112.39
5.4.200.0050.04312.39
5.4.190.0100.03612.39
5.4.180.0090.03412.39
5.4.170.0050.04712.40
5.4.160.0060.03812.40
5.4.150.0070.03312.39
5.4.140.0020.04012.08
5.4.130.0080.04312.07
5.4.120.0060.03412.03
5.4.110.0040.03612.02
5.4.100.0050.03612.02
5.4.90.0080.03412.03
5.4.80.0080.03612.02
5.4.70.0040.03612.02
5.4.60.0060.03412.02
5.4.50.0060.03612.02
5.4.40.0050.03712.00
5.4.30.0090.03612.00
5.4.20.0100.03312.00
5.4.10.0080.03312.00
5.4.00.0040.03711.50
5.3.290.0030.04212.80
5.3.280.0070.03612.70
5.3.270.0080.03612.73
5.3.260.0110.03712.72
5.3.250.0080.04412.72
5.3.240.0100.03612.72
5.3.230.0100.03912.71
5.3.220.0080.04112.68
5.3.210.0090.04012.68
5.3.200.0060.03712.68
5.3.190.0080.03812.68
5.3.180.0060.04012.68
5.3.170.0110.03412.67
5.3.160.0120.03312.67
5.3.150.0060.03812.68
5.3.140.0090.04312.66
5.3.130.0070.04112.65
5.3.120.0120.04012.66
5.3.110.0030.04212.66
5.3.100.0030.04012.12
5.3.90.0080.03512.10
5.3.80.0100.03312.09
5.3.70.0040.04012.09
5.3.60.0140.03012.07
5.3.50.0060.03612.03
5.3.40.0100.03412.02
5.3.30.0100.03211.98
5.3.20.0090.03211.76
5.3.10.0050.03611.73
5.3.00.0050.03811.71
5.2.170.0060.0299.22
5.2.160.0080.0329.22
5.2.150.0060.0319.22
5.2.140.0060.0289.21
5.2.130.0050.0289.18
5.2.120.0090.0269.18
5.2.110.0100.0269.18
5.2.100.0060.0279.17
5.2.90.0080.0319.18
5.2.80.0060.0299.17
5.2.70.0080.0289.17
5.2.60.0060.0339.12
5.2.50.0070.0359.09
5.2.40.0100.0319.06
5.2.30.0030.0479.04
5.2.20.0100.0319.04
5.2.10.0100.0318.94
5.2.00.0050.0328.80
5.1.60.0060.0248.09
5.1.50.0010.0328.08
5.1.40.0080.0308.07
5.1.30.0080.0228.41
5.1.20.0040.0268.44
5.1.10.0070.0268.16
5.1.00.0040.0268.16
5.0.50.0030.0256.63
5.0.40.0060.0176.50
5.0.30.0050.0316.32
5.0.20.0030.0256.28
5.0.10.0040.0216.25
5.0.00.0050.0396.24
4.4.90.0070.0154.78
4.4.80.0040.0234.75
4.4.70.0050.0194.76
4.4.60.0040.0254.75
4.4.50.0040.0204.77
4.4.40.0030.0244.71
4.4.30.0010.0174.76
4.4.20.0040.0144.84
4.4.10.0040.0144.85
4.4.00.0030.0254.75
4.3.110.0020.0174.67
4.3.100.0070.0174.67
4.3.90.0030.0184.63
4.3.80.0030.0274.59
4.3.70.0060.0164.63
4.3.60.0030.0184.63
4.3.50.0030.0194.63
4.3.40.0040.0264.54
4.3.30.0030.0183.30
4.3.20.0020.0223.28
4.3.10.0010.0163.23
4.3.00.0000.02015.97

preferences:
139.63 ms | 1394 KiB | 7 Q