3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'test' $a = isset($a) ? : 'no test'; echo $a;

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)
5.4.340.0040.03612.00
5.4.320.0060.03612.50
5.4.310.0080.03512.49
5.4.300.0060.04412.50
5.4.290.0080.03712.49
5.4.280.0060.04012.39
5.4.270.0110.03112.39
5.4.260.0030.04012.39
5.4.250.0050.03712.39
5.4.240.0060.03612.39
5.4.230.0040.04012.38
5.4.220.0090.03212.38
5.4.210.0030.03712.38
5.4.200.0030.04012.38
5.4.190.0030.03912.38
5.4.180.0050.03612.38
5.4.170.0070.03712.38
5.4.160.0050.03712.38
5.4.150.0050.03712.38
5.4.140.0050.03712.07
5.4.130.0070.04112.05
5.4.120.0060.03412.02
5.4.110.0070.03212.01
5.4.100.0080.03412.01
5.4.90.0110.03412.01
5.4.80.0070.03612.01
5.4.70.0040.03712.01
5.4.60.0040.03612.01
5.4.50.0080.03312.00
5.4.40.0040.03611.99
5.4.30.0060.04411.99
5.4.20.0050.03711.98
5.4.10.0030.03811.99
5.4.00.0070.03511.48
5.3.290.0050.04312.80
5.3.280.0050.04312.70
5.3.270.0060.03912.73
5.3.260.0060.03912.72
5.3.250.0050.03812.72
5.3.240.0060.03712.72
5.3.230.0070.03712.71
5.3.220.0050.03712.68
5.3.210.0060.03812.68
5.3.200.0030.03812.68
5.3.190.0050.03912.68
5.3.180.0050.03712.67
5.3.170.0070.03912.67
5.3.160.0080.03412.68
5.3.150.0050.03812.67
5.3.140.0060.03612.66
5.3.130.0080.03712.66
5.3.120.0080.03712.66
5.3.110.0080.03612.66
5.3.100.0040.03812.11
5.3.90.0050.03712.08
5.3.80.0100.03212.07
5.3.70.0050.03712.08
5.3.60.0050.03812.06
5.3.50.0060.03612.00
5.3.40.0060.03612.00
5.3.30.0070.03311.95
5.3.20.0070.03411.73
5.3.10.0070.03411.70
5.3.00.0070.03511.68
5.2.170.0060.0289.18
5.2.160.0060.0289.18
5.2.150.0050.0309.18
5.2.140.0060.0299.18
5.2.130.0080.0269.13
5.2.120.0030.0299.14
5.2.110.0070.0289.14
5.2.100.0070.0289.15
5.2.90.0070.0299.14
5.2.80.0060.0319.14
5.2.70.0090.0279.14
5.2.60.0050.0359.09
5.2.50.0050.0339.06
5.2.40.0060.0319.04
5.2.30.0030.0359.02
5.2.20.0020.0349.00
5.2.10.0030.0338.92
5.2.00.0050.0288.78
5.1.60.0020.0268.07
5.1.50.0050.0238.06
5.1.40.0060.0238.05
5.1.30.0040.0268.40
5.1.20.0010.0298.42
5.1.10.0020.0288.14
5.1.00.0040.0258.14
5.0.50.0030.0216.63
5.0.40.0030.0206.48
5.0.30.0060.0286.29
5.0.20.0010.0216.26
5.0.10.0040.0196.24
5.0.00.0040.0296.23
4.4.90.0020.0164.78
4.4.80.0040.0144.75
4.4.70.0020.0164.75
4.4.60.0030.0144.76
4.4.50.0000.0184.77
4.4.40.0020.0254.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0020.0264.75
4.3.110.0040.0154.67
4.3.100.0010.0164.66
4.3.90.0060.0114.63
4.3.80.0040.0284.58
4.3.70.0050.0184.63
4.3.60.0030.0144.63
4.3.50.0030.0194.62
4.3.40.0030.0244.54
4.3.30.0040.0143.29
4.3.20.0010.0173.26
4.3.10.0010.0163.22
4.3.00.0070.0236.86

preferences:
139.32 ms | 1394 KiB | 7 Q