CFLib.org – Common Function Library Project

Description:
This function was developed to create SEO friendly urls from article titles (similar to digg and cnn). It removes all non alpha characters and replaces them with a hyphen. It also removes trailing hyphens, apostrophes, etc.

Return Values:
Returns a string.

Example:

<cfsavecontent variable="myTitle">
This wouldn't be a very SEO friendly URL, would it?
</cfsavecontent>
<cfoutput>
#friendlyUrl(myTitle)#
</cfoutput>

Parameters:

Full UDF Source:

/**
 * UDF that returns an SEO friendly string.
 * Fix for - in front by B
 * 
 * @param title      String to modify. (Required)
 * @return Returns a string. 
 * @author Nick Maloney (nmaloney@prolucid.com) 
 * @version 2, November 29, 2008 
 */
function friendlyUrl(title) {
    title = replaceNoCase(title,"&","and","all"); //replace &
    title = replaceNoCase(title,"&","and","all"); //replace &
    title = replaceNoCase(title,"'","","all"); //remove apostrophe
    title = reReplaceNoCase(trim(title),"[^a-zA-Z]","-","ALL");
    title = reReplaceNoCase(title,"[\-\-]+","-","all");
    //Remove trailing dashes
    if(right(title,1) eq "-") {
        title = left(title,len(title) - 1);
    }
    if(left(title,1) eq "-") {
        title = right(title,len(title) - 1);
    }    
    return lcase(title);
}