3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'bar'; isset($foo) && unset($foo); var_dump(isset($foo));

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)
5.4.340.0080.03412.01
5.4.320.0080.04212.49
5.4.310.0080.04512.49
5.4.300.0120.03812.50
5.4.290.0110.04012.49
5.4.280.0110.04912.39
5.4.270.0070.04612.39
5.4.260.0080.03812.39
5.4.250.0040.04012.39
5.4.240.0060.04212.39
5.4.230.0070.05012.38
5.4.220.0070.03912.38
5.4.210.0070.03912.38
5.4.200.0080.04312.38
5.4.190.0060.05112.38
5.4.180.0130.04612.38
5.4.170.0070.05012.38
5.4.160.0040.03712.38
5.4.150.0030.04212.38
5.4.140.0100.03812.07
5.4.130.0050.04012.05
5.4.120.0040.04112.02
5.4.110.0050.04212.01
5.4.100.0030.04012.01
5.4.90.0050.04112.01
5.4.80.0030.04012.02
5.4.70.0060.03512.01
5.4.60.0060.03412.00
5.4.50.0070.03412.00
5.4.40.0060.03912.00
5.4.30.0080.04911.99
5.4.20.0100.06311.99
5.4.10.0050.04611.99
5.4.00.0110.06111.49
5.3.290.0070.05112.80
5.3.280.0090.04312.71
5.3.270.0070.04412.72
5.3.260.0080.05512.72
5.3.250.0070.04512.72
5.3.240.0080.04012.72
5.3.230.0090.04312.71
5.3.220.0050.03612.68
5.3.210.0030.04112.68
5.3.200.0070.03512.68
5.3.190.0060.03712.68
5.3.180.0080.03412.68
5.3.170.0090.04812.67
5.3.160.0050.04112.68
5.3.150.0100.04412.67
5.3.140.0080.05012.66
5.3.130.0060.04012.66
5.3.120.0040.04012.66
5.3.110.0040.03912.66
5.3.100.0070.03812.12
5.3.90.0050.04212.08
5.3.80.0070.03812.07
5.3.70.0050.03712.07
5.3.60.0070.03612.07
5.3.50.0100.03312.00
5.3.40.0090.03812.00
5.3.30.0090.04311.95
5.3.20.0100.04911.73
5.3.10.0100.04811.70
5.3.00.0100.04811.68
5.2.170.0070.0399.18
5.2.160.0100.0339.18
5.2.150.0110.0299.18
5.2.140.0070.0359.18
5.2.130.0080.0389.14
5.2.120.0080.0509.14
5.2.110.0040.0319.15
5.2.100.0100.0299.14
5.2.90.0100.0459.14
5.2.80.0070.0339.14
5.2.70.0050.0309.14
5.2.60.0020.0349.09
5.2.50.0050.0309.06
5.2.40.0040.0309.04
5.2.30.0050.0349.02
5.2.20.0050.0339.00
5.2.10.0060.0348.93
5.2.00.0040.0308.78
5.1.60.0170.0528.06
5.1.50.0030.0258.06
5.1.40.0040.0268.05
5.1.30.0040.0288.40
5.1.20.0010.0308.42
5.1.10.0030.0268.14
5.1.00.0040.0258.14
5.0.50.0030.0206.63
5.0.40.0060.0206.48
5.0.30.0030.0356.29
5.0.20.0040.0196.27
5.0.10.0020.0226.24
5.0.00.0070.0356.23
4.4.90.0050.0154.78
4.4.80.0020.0194.75
4.4.70.0010.0234.76
4.4.60.0040.0394.75
4.4.50.0040.0204.77
4.4.40.0050.0264.71
4.4.30.0090.0174.76
4.4.20.0030.0174.84
4.4.10.0060.0174.85
4.4.00.0020.0264.76
4.3.110.0050.0174.67
4.3.100.0040.0174.67
4.3.90.0020.0174.63
4.3.80.0050.0254.58
4.3.70.0020.0164.63
4.3.60.0030.0154.63
4.3.50.0030.0174.63
4.3.40.0020.0284.54
4.3.30.0030.0163.28
4.3.20.0060.0183.26
4.3.10.0040.0193.22
4.3.00.0030.0207.09

preferences:
143.17 ms | 1394 KiB | 7 Q