3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $avar; public function __isset($varname) { var_dump('__isset called'); return true; } } class B extends A { public function hasAVar(){ return property_exists($this, 'avar'); } public function hasBVar(){ return property_exists($this, 'bvar'); } public function issetVars($property) {return isset($this->{$property}); } } $b = new B(); var_dump($b->hasAVar()); var_dump($b->hasBVar()); var_dump($b->issetVars('avar'); var_dump($b->issetVars('bvar');

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)
5.4.320.0090.03312.52
5.4.310.0060.03812.52
5.4.300.0070.04612.52
5.4.290.0040.04512.51
5.4.280.0070.03412.41
5.4.270.0070.03512.41
5.4.260.0060.03712.41
5.4.250.0050.03812.41
5.4.240.0070.03512.41
5.4.230.0080.03512.40
5.4.220.0120.03312.40
5.4.210.0060.03512.40
5.4.200.0060.03712.41
5.4.190.0040.03712.40
5.4.180.0080.03412.40
5.4.170.0060.03712.41
5.4.160.0040.03912.41
5.4.150.0090.03212.40
5.4.140.0090.04812.09
5.4.130.0080.03712.07
5.4.120.0040.03712.04
5.4.110.0100.03112.04
5.4.100.0070.03812.03
5.4.90.0070.03512.03
5.4.80.0070.03712.04
5.4.70.0040.03712.03
5.4.60.0070.03412.03
5.4.50.0050.03612.03
5.4.40.0060.05012.02
5.4.30.0060.04512.01
5.4.20.0120.03112.01
5.4.10.0090.03212.01
5.4.00.0030.03911.51
5.3.290.0080.05212.80
5.3.280.0080.04512.71
5.3.270.0070.03912.73
5.3.260.0080.03812.72
5.3.250.0070.03712.72
5.3.240.0050.03812.72
5.3.230.0020.04112.71
5.3.220.0090.03512.68
5.3.210.0090.03612.68
5.3.200.0040.03812.68
5.3.190.0070.03812.68
5.3.180.0030.04012.67
5.3.170.0070.03612.66
5.3.160.0070.03612.68
5.3.150.0080.03512.67
5.3.140.0080.03512.66
5.3.130.0100.04712.66
5.3.120.0070.05312.66
5.3.110.0100.03812.66
5.3.100.0140.04412.13
5.3.90.0050.04312.11
5.3.80.0040.04012.11
5.3.70.0050.03812.11
5.3.60.0060.03612.09
5.3.50.0070.03912.04
5.3.40.0050.03812.04
5.3.30.0080.04312.00
5.3.20.0060.03911.78
5.3.10.0070.03411.74
5.3.00.0050.03711.73
5.2.170.0050.0309.23
5.2.160.0040.0309.23
5.2.150.0060.0309.23
5.2.140.0050.0309.23
5.2.130.0040.0309.19
5.2.120.0050.0299.19
5.2.110.0060.0289.20
5.2.100.0030.0319.20
5.2.90.0070.0279.19
5.2.80.0040.0309.18
5.2.70.0070.0289.18
5.2.60.0060.0299.14
5.2.50.0050.0299.11
5.2.40.0050.0279.09
5.2.30.0030.0319.07
5.2.20.0050.0289.05
5.2.10.0030.0298.95
5.2.00.0080.0288.82
5.1.60.0050.0238.10
5.1.50.0000.0288.10
5.1.40.0050.0238.08
5.1.30.0040.0268.43
5.1.20.0060.0258.45
5.1.10.0020.0338.18
5.1.00.0060.0238.18
5.0.50.0060.0236.66
5.0.40.0040.0266.51
5.0.30.0010.0436.32
5.0.20.0050.0176.29
5.0.10.0040.0196.27
5.0.00.0050.0296.26
4.4.90.0040.0144.78
4.4.80.0020.0164.75
4.4.70.0030.0154.75
4.4.60.0060.0124.76
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0040.0154.84
4.4.10.0020.0164.85
4.4.00.0020.0254.76
4.3.110.0030.0154.66
4.3.100.0050.0134.67
4.3.90.0040.0134.64
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0040.0134.63
4.3.50.0040.0144.63
4.3.40.0040.0234.53
4.3.30.0010.0173.30
4.3.20.0010.0173.28
4.3.10.0010.0163.24
4.3.00.0000.02015.62

preferences:
141.62 ms | 1394 KiB | 7 Q