Help / WLanguage / WLanguage functions / Standard functions / String functions
  • Characters allowed in an encoded URL
  • Special cases
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WindowsLinuxPHPWEBDEV - Browser code
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Stored procedures
Encodes a URL with a sub-set of ASCII characters. This function is used to replace characters not allowed in a URL (accented characters, spaces, etc.). A URL can be decoded by URLDecode.
Remark: The syntax of the URL is not checked.
// Encodes a URL
EncodedURL = URLEncode("http://my site/my page")
// EncodedURL now contains http://my%20site/my%20page
// The two spaces are converted to %20
MyURL is UNICODE string = "http://my site/my page"
MyEncodedURL is string
// Encodes a URL
MyEncodedURL = URLEncode(MyURL, encodeURLFromUnicode)
// Encode a URL with a URL parameter
Info(URLEncode("", encodeURLFromAnsi) + ...
URLEncode(URLEncode("é", encodeURLFromAnsi), encodeURLParameter))
<Result> = URLEncode(<URL> [, <Encoding format>])
<Result>: Character string
Character string containing the encoded URL. Non-allowed characters are changed to %xx, where xx is the hexadecimal value of this character.
This function returns no error code because all character strings can be encoded.
<URL>: Character string
URL to be encoded (in ANSI format).
<Encoding format>: Optional Integer constant
URL encoding format:
encodeURLFromAnsiURL format. The encoded text only contains characters allowed in a URL. The text to encode is an ANSI string.
(Default value)
URL format. The encoded text only contains characters allowed in a URL. The text to encode is a UTF-8 string.
encodeURLParameterURL format. The specific characters of a URL are encoded to pass a URL as a parameter to another URL.
Caution: The URL passed as parameter must have been encoded with the encodeURLFromAnsi or encodeURLFromUTF8 constant.

AndroidAndroid Widget JavaPHP This parameter is not available.

Characters allowed in an encoded URL

The list of characters allowed in an encoded URL is as follows:
%#digitsletters (uppercase and lowercase characters)

According to the options, the function will be able to encode some of these characters.

Special cases

  • Encoding an empty URL (empty string) returns an empty URL.
  • Special case: the "%" and "+" signs
    • Since the % sign is used for decimal encoding, it is itself encoded as a decimal.
    • The "+" sign, which is an alternative to %20 for encoding a space, is also encoded (to avoid problems when decoding).
Component: wd290std.dll
Minimum version required
  • Version 9
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Last update: 07/03/2023

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