| parse_url(url, partToExtract[, key]) | Extracts a part from a URL. | 
    
      | try_url_decode(str) | This is a special version of `url_decode` that performs the same operation, but returns a NULL value instead of raising an error if the decoding cannot be performed. | 
    
      | url_decode(str) | Decodes a `str` in 'application/x-www-form-urlencoded' format using a specific encoding scheme. | 
    
      | url_encode(str) | Translates a string into 'application/x-www-form-urlencoded' format using a specific encoding scheme. |