3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { &function __get($key) {return 'x';} function __isset($key) {return TRUE;} } $c = new C; print_r(empty($c->__get('k')));

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)
5.4.340.0050.03612.02
5.4.320.0050.03812.50
5.4.310.0070.03812.50
5.4.300.0070.04012.51
5.4.290.0070.03812.50
5.4.280.0020.03912.40
5.4.270.0070.03512.40
5.4.260.0040.04012.40
5.4.250.0050.03812.40
5.4.240.0080.03612.40
5.4.230.0070.03812.39
5.4.220.0050.03612.39
5.4.210.0040.03612.39
5.4.200.0050.04012.39
5.4.190.0050.03612.39
5.4.180.0060.03512.39
5.4.170.0040.03712.40
5.4.160.0060.03512.39
5.4.150.0080.03212.39
5.4.140.0020.04012.08
5.4.130.0050.03512.06
5.4.120.0100.03512.03
5.4.110.0030.03712.02
5.4.100.0070.03312.03
5.4.90.0070.03512.02
5.4.80.0050.03712.02
5.4.70.0080.03212.02
5.4.60.0060.03512.02
5.4.50.0100.03112.02
5.4.40.0070.03312.00
5.4.30.0060.03512.00
5.4.20.0030.04612.00
5.4.10.0060.04612.00
5.4.00.0080.03311.49
5.3.290.0050.04012.80
5.3.280.0070.03812.71
5.3.270.0070.03812.72
5.3.260.0090.03712.72
5.3.250.0070.03612.72
5.3.240.0080.03512.72
5.3.230.0090.03412.71
5.3.220.0060.03612.68
5.3.210.0090.03512.68
5.3.200.0030.04012.68
5.3.190.0100.03312.68
5.3.180.0050.03712.67
5.3.170.0060.03712.67
5.3.160.0080.03412.67
5.3.150.0090.03712.68
5.3.140.0050.03712.66
5.3.130.0060.03812.65
5.3.120.0080.03612.66
5.3.110.0060.03912.66
5.3.100.0050.03712.12
5.3.90.0080.03312.10
5.3.80.0100.03112.09
5.3.70.0070.03512.09
5.3.60.0080.03312.08
5.3.50.0070.03412.02
5.3.40.0050.03612.02
5.3.30.0040.03611.98
5.3.20.0080.03211.75
5.3.10.0050.03511.73
5.3.00.0110.03011.71
5.2.170.0020.0339.21
5.2.160.0030.0319.21
5.2.150.0050.0299.22
5.2.140.0030.0319.21
5.2.130.0040.0289.17
5.2.120.0070.0259.17
5.2.110.0010.0329.18
5.2.100.0040.0289.18
5.2.90.0060.0279.18
5.2.80.0040.0309.17
5.2.70.0060.0289.17
5.2.60.0050.0299.13
5.2.50.0070.0349.09
5.2.40.0110.0339.07
5.2.30.0060.0419.04
5.2.20.0110.0349.04
5.2.10.0080.0368.94
5.2.00.0060.0358.80
5.1.60.0070.0338.08
5.1.50.0040.0298.08
5.1.40.0030.0258.06
5.1.30.0110.0188.41
5.1.20.0070.0238.43
5.1.10.0050.0258.16
5.1.00.0070.0228.16
5.0.50.0060.0176.64
5.0.40.0050.0176.50
5.0.30.0030.0326.31
5.0.20.0040.0196.27
5.0.10.0030.0216.25
5.0.00.0040.0306.25
4.4.90.0070.0114.77
4.4.80.0060.0124.76
4.4.70.0030.0154.76
4.4.60.0020.0154.76
4.4.50.0030.0144.77
4.4.40.0020.0254.71
4.4.30.0040.0144.75
4.4.20.0030.0154.85
4.4.10.0040.0144.85
4.4.00.0030.0244.76
4.3.110.0040.0144.67
4.3.100.0030.0214.67
4.3.90.0030.0194.63
4.3.80.0030.0284.59
4.3.70.0030.0194.63
4.3.60.0030.0134.63
4.3.50.0020.0154.63
4.3.40.0010.0254.53
4.3.30.0010.0163.30
4.3.20.0010.0163.28
4.3.10.0020.0153.24
4.3.00.0200.0177.20

preferences:
142.25 ms | 1394 KiB | 7 Q