3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = (object)array('123a' => '456'); print_r($obj); if (!property_exists($obj,'123a')) echo 'property '123a' does not exist',"\n"; if ( !isset( $obj->{'123a'} ) ) echo 'property 123a is null',"\n";

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)
5.4.340.0070.03712.01
5.4.320.0090.04212.49
5.4.310.0100.04112.49
5.4.300.0090.03812.50
5.4.290.0090.03812.50
5.4.280.0050.03712.39
5.4.270.0080.03612.39
5.4.260.0060.04112.39
5.4.250.0060.03912.39
5.4.240.0030.04012.39
5.4.230.0070.03612.38
5.4.220.0060.03512.38
5.4.210.0070.03412.38
5.4.200.0060.03812.38
5.4.190.0080.03312.38
5.4.180.0080.03912.38
5.4.170.0080.03612.39
5.4.160.0090.03512.38
5.4.150.0050.03612.38
5.4.140.0040.03812.07
5.4.130.0080.03912.05
5.4.120.0050.03712.02
5.4.110.0100.04012.01
5.4.100.0060.03912.01
5.4.90.0070.03812.01
5.4.80.0070.03612.01
5.4.70.0090.03112.00
5.4.60.0070.03412.01
5.4.50.0050.03712.00
5.4.40.0020.03812.00
5.4.30.0080.03411.99
5.4.20.0090.03211.99
5.4.10.0030.03711.99
5.4.00.0040.03711.48
5.3.290.0060.04212.80
5.3.280.0030.04112.71
5.3.270.0050.03912.73
5.3.260.0080.03512.72
5.3.250.0050.03612.72
5.3.240.0070.03712.72
5.3.230.0060.03712.71
5.3.220.0050.03812.68
5.3.210.0050.04112.68
5.3.200.0050.03612.68
5.3.190.0070.03612.68
5.3.180.0040.03712.68
5.3.170.0070.03412.67
5.3.160.0100.03212.68
5.3.150.0040.04012.67
5.3.140.0070.03712.66
5.3.130.0040.04012.66
5.3.120.0080.04912.66
5.3.110.0060.04612.66
5.3.100.0070.04212.12
5.3.90.0060.03612.08
5.3.80.0040.03812.07
5.3.70.0060.03612.08
5.3.60.0060.04712.06
5.3.50.0060.03912.00
5.3.40.0040.03912.00
5.3.30.0050.03711.95
5.3.20.0080.03811.73
5.3.10.0080.03211.70
5.3.00.0050.03611.68
5.2.170.0080.0279.18
5.2.160.0050.0299.18
5.2.150.0040.0339.18
5.2.140.0050.0379.18
5.2.130.0050.0309.14
5.2.120.0050.0329.14
5.2.110.0040.0329.14
5.2.100.0100.0349.14
5.2.90.0090.0309.14
5.2.80.0060.0329.14
5.2.70.0050.0309.14
5.2.60.0060.0339.09
5.2.50.0040.0309.06
5.2.40.0080.0319.04
5.2.30.0030.0319.02
5.2.20.0070.0269.00
5.2.10.0080.0288.93
5.2.00.0060.0308.79
5.1.60.0030.0258.07
5.1.50.0040.0258.07
5.1.40.0050.0238.05
5.1.30.0070.0248.40
5.1.20.0050.0268.41
5.1.10.0060.0258.14
5.1.00.0060.0248.14
5.0.50.0050.0196.63
5.0.40.0030.0226.48
5.0.30.0040.0346.30
5.0.20.0050.0186.27
5.0.10.0020.0216.24
5.0.00.0040.0306.23
4.4.90.0050.0214.78
4.4.80.0020.0164.75
4.4.70.0040.0214.76
4.4.60.0010.0164.76
4.4.50.0050.0194.77
4.4.40.0050.0274.71
4.4.30.0040.0204.76
4.4.20.0040.0134.84
4.4.10.0020.0164.85
4.4.00.0040.0244.76
4.3.110.0050.0134.66
4.3.100.0020.0184.66
4.3.90.0030.0144.64
4.3.80.0030.0254.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0050.0133.29
4.3.20.0020.0163.27
4.3.10.0030.0203.22
4.3.00.0100.0207.22

preferences:
152.46 ms | 1394 KiB | 7 Q