====== URL_ENCODE (Expression Function) ======

===== Purpose =====
The **URL Encode** function (URL_ENCODE) takes the input of a field value and encodes it using RFC 3986. This function is most commonly used when communicating with a third party system that receives values that are url encoded.

{{::url_encode_initial.png?direct&600|}}
===== Parameters =====
The **URL Encode** function has one input parameter:

==== Field Value ====

Allowed Inputs: [[Field|field]] value

The builder can enter one field value. The builder should use the [[Query Builder]] to choose a field that contains a value. 

===== Output =====

The output of the **URL Encode** function is a string in which all non-alphanumeric characters except -_.~ have been replaced with a percent (%) sign followed by two hex digits.

===== Example =====

URL_ENCODE("This & That") returns This%20%26%20That