3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'somestring'; echo isset($var['key']) ? 'true' : 'false'; 5.3.27 echoes 'true' 5.5.7 echoes 'false'

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)
5.4.260.0050.05012.36
5.4.250.0080.05112.36
5.4.240.0070.04912.36
5.4.230.0080.03912.35
5.4.220.0090.05612.35
5.4.210.0100.03412.36
5.4.200.0090.03512.36
5.4.190.0080.03412.35
5.4.180.0070.03712.35
5.4.170.0070.04512.36
5.4.160.0030.03812.35
5.4.150.0050.03712.34
5.4.140.0060.03712.04
5.4.130.0060.03512.02
5.4.120.0060.03611.98
5.4.110.0060.03511.98
5.4.100.0070.03411.98
5.4.90.0070.03611.98
5.4.80.0070.03611.98
5.4.70.0070.03711.98
5.4.60.0040.03611.98
5.4.50.0040.03711.97
5.4.40.0060.03411.96
5.4.30.0010.04011.96
5.4.20.0040.03611.95
5.4.10.0060.03411.96
5.4.00.0070.03411.45
5.3.280.0080.03812.71
5.3.270.0090.03812.72
5.3.260.0080.04412.72
5.3.250.0050.03912.72
5.3.240.0050.03912.72
5.3.230.0060.03912.71
5.3.220.0050.04012.68
5.3.210.0060.03712.68
5.3.200.0050.03912.68
5.3.190.0050.03912.67
5.3.180.0030.03812.67
5.3.170.0050.03712.66
5.3.160.0030.03912.68
5.3.150.0070.03512.67
5.3.140.0060.03612.66
5.3.130.0070.03712.66
5.3.120.0050.03912.66
5.3.110.0100.04012.66
5.3.100.0050.03712.12
5.3.90.0090.03812.09
5.3.80.0040.05212.07
5.3.70.0070.04212.08
5.3.60.0040.03712.07
5.3.50.0050.04212.00
5.3.40.0060.04212.00
5.3.30.0040.03711.94
5.3.20.0040.03911.69
5.3.10.0040.03711.65
5.3.00.0050.03711.64
5.2.170.0050.0329.14
5.2.160.0080.0269.14
5.2.150.0050.0309.14
5.2.140.0030.0319.13
5.2.130.0030.0319.10
5.2.120.0050.0289.10
5.2.110.0070.0279.11
5.2.100.0060.0289.11
5.2.90.0030.0299.10
5.2.80.0030.0329.09
5.2.70.0030.0329.09
5.2.60.0040.0309.05
5.2.50.0050.0309.02
5.2.40.0030.0308.99
5.2.30.0050.0298.97
5.2.20.0040.0298.95
5.2.10.0050.0278.88
5.2.00.0070.0328.74
5.1.60.0050.0278.03
5.1.50.0060.0288.02
5.1.40.0030.0278.01
5.1.30.0030.0268.35
5.1.20.0030.0278.39
5.1.10.0050.0258.11
5.1.00.0040.0268.10
5.0.50.0030.0276.58
5.0.40.0030.0206.44
5.0.30.0040.0326.26
5.0.20.0030.0246.25
5.0.10.0020.0226.22
5.0.00.0040.0396.21
4.4.90.0030.0154.78
4.4.80.0020.0164.75
4.4.70.0020.0164.76
4.4.60.0020.0154.75
4.4.50.0040.0144.77
4.4.40.0040.0244.71
4.4.30.0030.0164.76
4.4.20.0000.0184.84
4.4.10.0030.0204.84
4.4.00.0030.0254.76
4.3.110.0030.0154.67
4.3.100.0020.0154.67
4.3.90.0010.0164.64
4.3.80.0030.0254.59
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0020.0244.54
4.3.30.0030.0173.29
4.3.20.0010.0173.27
4.3.10.0040.0163.23
4.3.00.0100.0236.61

preferences:
137.53 ms | 1394 KiB | 7 Q