3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'µ'; $$a = "Nano"; echo ${'µ'}

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)
5.4.340.0040.03511.98
5.4.320.0050.03612.47
5.4.310.0070.03612.46
5.4.300.0070.03512.46
5.4.290.0060.03712.46
5.4.280.0080.03312.36
5.4.270.0090.03312.36
5.4.260.0030.04112.36
5.4.250.0060.03712.36
5.4.240.0060.03512.36
5.4.230.0100.03212.36
5.4.220.0080.03512.36
5.4.210.0030.03712.35
5.4.200.0060.04112.36
5.4.190.0080.03212.35
5.4.180.0030.03812.35
5.4.170.0090.03112.36
5.4.160.0060.03412.35
5.4.150.0070.03412.35
5.4.140.0050.04612.04
5.4.130.0060.03312.02
5.4.120.0060.04511.99
5.4.110.0020.04211.98
5.4.100.0030.03711.99
5.4.90.0050.03711.98
5.4.80.0050.04011.98
5.4.70.0060.04311.98
5.4.60.0050.03511.98
5.4.50.0050.03511.98
5.4.40.0040.03811.97
5.4.30.0070.03311.96
5.4.20.0070.03311.96
5.4.10.0080.03211.96
5.4.00.0050.03611.46
5.3.290.0080.03712.80
5.3.280.0060.03912.71
5.3.270.0080.03612.73
5.3.260.0070.03712.71
5.3.250.0040.03812.71
5.3.240.0060.03612.71
5.3.230.0080.03512.71
5.3.220.0070.03612.68
5.3.210.0050.03912.68
5.3.200.0100.03112.68
5.3.190.0040.03812.68
5.3.180.0040.04012.67
5.3.170.0060.03712.67
5.3.160.0050.03712.67
5.3.150.0040.04212.67
5.3.140.0040.03912.66
5.3.130.0040.04112.65
5.3.120.0030.04412.65
5.3.110.0040.04012.66
5.3.100.0070.03612.12
5.3.90.0070.04112.08
5.3.80.0060.03512.07
5.3.70.0040.04012.08
5.3.60.0050.03612.07
5.3.50.0070.03412.00
5.3.40.0070.03512.00
5.3.30.0050.03511.95
5.3.20.0060.03511.73
5.3.10.0040.03511.70
5.3.00.0050.03611.69
5.2.170.0030.0319.18
5.2.160.0050.0289.18
5.2.150.0040.0309.18
5.2.140.0050.0309.18
5.2.130.0040.0299.14
5.2.120.0060.0279.13
5.2.110.0090.0249.14
5.2.100.0050.0279.14
5.2.90.0040.0399.14
5.2.80.0050.0349.14
5.2.70.0040.0299.14
5.2.60.0060.0289.09
5.2.50.0060.0329.06
5.2.40.0070.0259.04
5.2.30.0040.0309.01
5.2.20.0050.0279.00
5.2.10.0020.0298.92
5.2.00.0070.0268.79
5.1.60.0010.0268.07
5.1.50.0050.0238.06
5.1.40.0030.0258.05
5.1.30.0000.0298.40
5.1.20.0050.0258.42
5.1.10.0070.0238.14
5.1.00.0060.0238.14
5.0.50.0030.0216.62
5.0.40.0060.0246.48
5.0.30.0040.0306.29
5.0.20.0050.0246.27
5.0.10.0050.0176.24
5.0.00.0030.0306.23
4.4.90.0040.0144.78
4.4.80.0040.0134.75
4.4.70.0030.0184.75
4.4.60.0020.0154.75
4.4.50.0040.0154.77
4.4.40.0030.0264.71
4.4.30.0020.0194.76
4.4.20.0030.0204.84
4.4.10.0040.0144.85
4.4.00.0040.0234.76
4.3.110.0040.0144.67
4.3.100.0030.0144.67
4.3.90.0020.0154.64
4.3.80.0030.0274.58
4.3.70.0040.0174.63
4.3.60.0030.0134.63
4.3.50.0030.0144.63
4.3.40.0030.0234.54
4.3.30.0030.0143.29
4.3.20.0000.0173.26
4.3.10.0020.0153.22
4.3.00.0030.0277.21

preferences:
140.73 ms | 1386 KiB | 7 Q