csharp: Function that acts like PHP's file_get_contents

FileGetContents.cs

protected string file_get_contents(string fileName) 
{

 string sContents = string.Empty; 
 if (fileName.ToLower().IndexOf("http:") > -1){ 
	 // URL 
	 System.Net.WebClient wc = new System.Net.WebClient(); 
	 byte[] response = wc.DownloadData(fileName); 
	 sContents = System.Text.Encoding.ASCII.GetString(response); 
 } else { 
	 // Regular Filename 
	 System.IO.StreamReader sr = new System.IO.StreamReader(fileName); 
	 sContents = sr.ReadToEnd(); 
	 sr.Close(); 
 } 
 return sContents;
}