CFLib.org – Common Function Library Project

Description:
Submit a filename and function will return extension. If no period exists in the filename, an empty string is returned.

Return Values:
Returns a string.

Example:

<cfset tmp = "some text.stuff. . .this.that">
<cfoutput>
getExtension(tmp) = #getExtension(tmp)#
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Returns extension defined by all characters following last period.
 * v2 by Ray Camden
 * 
 * @param name      File name to use. (Required)
 * @return Returns a string. 
 * @author Alexander Sicular (as867@columbia.edu) 
 * @version 2, May 9, 2003 
 */
function getExtension(name) {  
    if(find(".",name)) return listLast(name,".");
    else return "";
}