3v4l.org

run code in 300+ PHP versions simultaneously
<?php $null = null; var_dump($null['foobar']); $zero = 0; var_dump($zero['foobar']); var_dump((0)['foobar']); var_dump((null)['foobar']); var_dump(0['foobar']); var_dump(null['foobar']);

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)
5.4.340.0630.00019.09
5.4.320.0040.03812.49
5.4.310.0070.03712.49
5.4.300.0040.03812.50
5.4.290.0060.03712.50
5.4.280.0040.03712.39
5.4.270.0060.03512.39
5.4.260.0090.03312.39
5.4.250.0050.03812.39
5.4.240.0070.03412.39
5.4.230.0120.04712.38
5.4.220.0060.03712.38
5.4.210.0060.03412.38
5.4.200.0090.03312.38
5.4.190.0040.03712.38
5.4.180.0090.04912.38
5.4.170.0040.03812.38
5.4.160.0090.03412.38
5.4.150.0060.03512.38
5.4.140.0070.03512.07
5.4.130.0040.03712.05
5.4.120.0080.03312.01
5.4.110.0040.03912.01
5.4.100.0030.03812.01
5.4.90.0040.03912.01
5.4.80.0050.04112.01
5.4.70.0070.03312.01
5.4.60.0050.03512.01
5.4.50.0060.03512.00
5.4.40.0060.03512.00
5.4.30.0080.03311.99
5.4.20.0120.03411.99
5.4.10.0080.04611.99
5.4.00.0060.04111.48
5.3.290.0090.04312.80
5.3.280.0060.03712.71
5.3.270.0060.03812.72
5.3.260.0070.03712.72
5.3.250.0060.03712.72
5.3.240.0060.03712.72
5.3.230.0080.04212.71
5.3.220.0090.03312.68
5.3.210.0050.04612.68
5.3.200.0050.03712.68
5.3.190.0090.03812.68
5.3.180.0090.03212.67
5.3.170.0090.03312.67
5.3.160.0060.04312.68
5.3.150.0070.03512.68
5.3.140.0070.03512.66
5.3.130.0070.03612.66
5.3.120.0060.04312.66
5.3.110.0090.03612.66
5.3.100.0060.03712.12
5.3.90.0040.03812.09
5.3.80.0050.03712.07
5.3.70.0060.03612.08
5.3.60.0040.03712.06
5.3.50.0070.03412.00
5.3.40.0060.03512.00
5.3.30.0080.04211.95
5.3.20.0080.03211.72
5.3.10.0080.03411.70
5.3.00.0060.03511.68
5.2.170.0060.0389.18
5.2.160.0050.0289.19
5.2.150.0030.0459.18
5.2.140.0070.0339.18
5.2.130.0060.0299.14
5.2.120.0040.0279.14
5.2.110.0050.0289.14
5.2.100.0030.0319.14
5.2.90.0080.0249.14
5.2.80.0040.0309.14
5.2.70.0040.0379.14
5.2.60.0040.0339.09
5.2.50.0060.0319.06
5.2.40.0090.0269.04
5.2.30.0030.0319.02
5.2.20.0070.0269.00
5.2.10.0040.0288.92
5.2.00.0050.0288.79
5.1.60.0030.0258.07
5.1.50.0040.0248.07
5.1.40.0040.0248.05
5.1.30.0020.0298.39
5.1.20.0060.0258.41
5.1.10.0020.0288.14
5.1.00.0030.0278.14
5.0.50.0020.0216.62
5.0.40.0050.0176.48
5.0.30.0010.0326.30
5.0.20.0060.0166.27
5.0.10.0040.0186.24
5.0.00.0030.0306.23
4.4.90.0010.0174.78
4.4.80.0020.0164.75
4.4.70.0010.0164.75
4.4.60.0020.0154.75
4.4.50.0040.0134.77
4.4.40.0030.0244.71
4.4.30.0020.0154.76
4.4.20.0050.0134.84
4.4.10.0050.0134.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0020.0154.66
4.3.90.0040.0134.63
4.3.80.0050.0224.59
4.3.70.0020.0154.63
4.3.60.0010.0174.63
4.3.50.0000.0184.63
4.3.40.0050.0214.54
4.3.30.0000.0173.28
4.3.20.0030.0143.25
4.3.10.0000.0173.22
4.3.00.0070.01313.59

preferences:
137.95 ms | 1394 KiB | 7 Q