Question

I got the following code from this question: What is the best way to clean a string for placement in a URL, like the question name on SO?

$str = strtolower( 
  preg_replace( array('/[^a-z0-9\- ]/i', '/[ \-]+/'), array('', '-'), 
  $urlPart ) );

This code works for me with PHP, its making clean and SEO’d url’s in just one line, but I want to use the same script in my ASP.NET(C#) application. But don’t know what will be the code for this line in C#. Can anyone please convert this PHP code into C# function.

Thanks

Answer 1

To keep it simple, it’s probably easiest to do it with two regex replace calls, though you could rewrite it into one using the Replace overload with MatchEvaluator (it would be a bit hacky).

using System.Text.RegularExpressions;

// ...

var str = Regex.Replace(Regex.Replace(urlPart, @"[^a-z0-9\- ]/i", ""), @"[ \-]+", "-").ToLower();

Hope that helps.