Len |
Description
Determines the length of a string or binary object.
Returns
Number; length of a string or a binary object.
Category
String functions
Function syntax
    Len(string or binary object)
See also
ToBinary, Left, Right, Mid
History
ColdFusion MX: Changed Unicode support: ColdFusion supports the Java UCS-2 representation of Unicode character values 0-65535. (ColdFusion 5 and earlier releases supported ASCII values 1-255. When calculating a length, some string-processing functions processed the ASCII 0 (NUL) character, but did not process subsequent characters of the string.)
Parameters
Parameter | Description
string | A string, the name of a string, or a binary object
Example
    <h3>Len Example</h3>

    <cfif IsDefined("Form.MyText")>
    <!--- if len is 0, then err --->
       <cfif Len(FORM.myText) is not 0>
       <p>Your string, <cfoutput>"#FORM.myText#"</cfoutput>,
       has <cfoutput>#Len(FORM.myText)#</cfoutput> characters.
       <cfelse>
       <p>Please enter a string of more than 0 characters.
       </cfif>
    </cfif>

    <form action = "len.cfm">
    <p>Type in some text to see the length of your string.

    <br><input type = "Text" name = "MyText">
    <br><input type = "Submit" name = "Remove characters">
    </form>

string |
A string, the name of a string, or a binary object