3v4l.org

run code in 300+ PHP versions simultaneously
<?php $supportedEncodings = [ 'iso-8859-1', 'iso8859-1', 'iso-8859-5', 'iso8859-5', 'iso-8859-15', 'iso8859-15', 'utf-8', 'cp866', 'ibm866', '866', 'cp1251', 'windows-1251', 'win-1251', '1251', 'cp1252', 'windows-1252', '1252', 'koi8-r', 'koi8-ru', 'koi8r', 'big5', '950', 'gb2312', '936', 'big5-hkscs', 'shift_jis', 'sjis', 'sjis-win', 'cp932', '932', 'euc-jp', 'eucjp', 'eucjp-win', 'macroman' ]; var_dump(isset($supportedEncodings['866']);

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)
5.4.310.0070.04512.50
5.4.300.0070.04012.51
5.4.290.0080.03912.50
5.4.280.0080.03312.40
5.4.270.0060.03812.39
5.4.260.0070.03912.40
5.4.250.0080.03712.39
5.4.240.0090.04212.40
5.4.230.0050.03812.39
5.4.220.0070.03412.39
5.4.210.0040.03712.39
5.4.200.0060.03812.39
5.4.190.0070.03712.39
5.4.180.0060.03612.39
5.4.170.0030.03812.39
5.4.160.0070.03412.39
5.4.150.0050.03612.39
5.4.140.0040.03912.07
5.4.130.0030.03912.06
5.4.120.0070.03412.02
5.4.110.0070.03512.02
5.4.100.0100.03112.02
5.4.90.0050.03712.02
5.4.80.0070.03712.02
5.4.70.0050.03612.02
5.4.60.0060.03512.02
5.4.50.0110.04112.02
5.4.40.0070.03412.00
5.4.30.0050.03912.00
5.4.20.0050.03612.00
5.4.10.0100.04312.00
5.4.00.0090.03311.49
5.3.280.0050.03812.71
5.3.270.0060.03912.72
5.3.260.0030.04312.72
5.3.250.0060.03712.72
5.3.240.0090.03612.72
5.3.230.0110.03712.71
5.3.220.0060.03812.68
5.3.210.0080.04012.68
5.3.200.0080.03812.68
5.3.190.0050.04012.68
5.3.180.0050.03812.67
5.3.170.0040.03812.67
5.3.160.0070.03612.67
5.3.150.0070.03812.67
5.3.140.0060.03512.66
5.3.130.0030.04112.66
5.3.120.0070.03912.66
5.3.110.0100.03612.66
5.3.100.0040.03812.11
5.3.90.0060.03512.09
5.3.80.0050.03612.07
5.3.70.0060.04412.07
5.3.60.0060.03512.06
5.3.50.0100.03312.00
5.3.40.0040.03712.00
5.3.30.0040.03511.95
5.3.20.0040.03611.73
5.3.10.0040.03611.70
5.3.00.0020.04211.68
5.2.170.0040.0319.18
5.2.160.0080.0339.18
5.2.150.0060.0319.18
5.2.140.0050.0319.17
5.2.130.0040.0439.14
5.2.120.0030.0319.14
5.2.110.0070.0339.15
5.2.100.0060.0279.14
5.2.90.0060.0409.14
5.2.80.0050.0319.14
5.2.70.0050.0299.14
5.2.60.0050.0309.09
5.2.50.0050.0389.05
5.2.40.0060.0279.04
5.2.30.0030.0329.01
5.2.20.0030.0299.00
5.2.10.0040.0288.93
5.2.00.0040.0308.79
5.1.60.0040.0238.07
5.1.50.0040.0258.07
5.1.40.0040.0258.04
5.1.30.0030.0288.39
5.1.20.0020.0298.41
5.1.10.0020.0298.14
5.1.00.0020.0298.14
5.0.50.0040.0206.62
5.0.40.0060.0176.48
5.0.30.0040.0316.29
5.0.20.0030.0196.26
5.0.10.0050.0206.24
5.0.00.0040.0326.23
4.4.90.0040.0144.78
4.4.80.0040.0144.76
4.4.70.0050.0134.75
4.4.60.0020.0164.75
4.4.50.0030.0174.77
4.4.40.0030.0264.71
4.4.30.0020.0174.76
4.4.20.0030.0214.84
4.4.10.0030.0154.85
4.4.00.0050.0314.76
4.3.110.0030.0154.67
4.3.100.0020.0164.66
4.3.90.0040.0134.64
4.3.80.0040.0244.58
4.3.70.0050.0124.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0030.0244.53
4.3.30.0030.0153.28
4.3.20.0020.0163.26
4.3.10.0010.0173.22
4.3.00.0100.01715.17

preferences:
140.38 ms | 1394 KiB | 7 Q