{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 干净又极端 的问题《Does C# have something like PHP's mb_convert_e》','https://www.manongdao.com/q-443550.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
Is there a way on C# that I can convert unicode strings into ASCII + html entities, and then back again? See, in PHP, I can do it like so:
<?php
// RUN ME AT COMMAND LINE
$sUnicode = '<b>Jöhan Strauß</b>';
echo "UNICODE: $sUnicode\n";
$sASCII = mb_convert_encoding($sUnicode, 'HTML-ENTITIES','UTF-8');
echo "ASCII: $sASCII\n";
$sUnicode = mb_convert_encoding($sASCII, 'UTF-8', 'HTML-ENTITIES');
echo "UNICODE (TRANSLATED BACK): $sUnicode\n";
Background:
- I need this to work in C# .NET 2 because we are constrained and can't use a higher .NET library in an older application.
- I handle the PHP backend on this application. I wanted to share some tips with the C# frontend team on this project.
HTML-ENTITIESisn't really a character encoding even though the PHP API might hint so.<b>Jöhan Strauß</b>is still UTF-8 encoded text (or even ASCII, ISO-8859-1, pretty much anything).I couldn't find anything premade, except html encoding functions which are not the same thing at all since they encode
&,<etc whilemb_convert_encodingdoesn't. I made t his class that should work:PHP:
C#
Note: This cannot handle characters outside BMP, though such a requirement is so rare that it should be explicitly mentioned.
Yes, there's
Encoding.Convert, although I rarely use it myself:I rarely find I want to convert from one encoded form to another - it's much more common to perform a one way conversion from text to binary (
Encoding.GetBytes) or vice versa (Encoding.GetString).Here are some examples of conversions. The first two show how to convert, the last one can be turned into a function that takes two encoding names as strings, and convert.
A list of encoding names can be found here.