CFLib.org – Common Function Library Project

Description:
Returns the number of occurances of a word in a string.

Return Values:
Returns the number of times the word appears.

Example:

<CFSET STR = "The is the way the world ends, not with a bag but with a whimper. The whimper to end all of the other wimpers.">
<CFOUTPUT>#WordInstance("the",str)#</CFOUTPUT>

Parameters:

Full UDF Source:

/**
 * Returns the number of occurances of a word in a string.
 * Minor edit by Raymond Camden
 * 
 * @param word      The word to count. (Required)
 * @param string      The string to check. (Required)
 * @return Returns the number of times the word appears. 
 * @author Joshua Miller (josh@joshuasmiller.com) 
 * @version 2, September 20, 2004 
 */
function WordInstance(word,string){
    var i=0;
    var start=1;
    var j = 1;
    var tmp = "";
    
    string = " " & string & " ";
    for(j=1;j lte Len(string);j=j+1){
        tmp=REFindNoCase("[^a-zA-Z]+#word#[^a-zA-Z]+",string,start);
        if(tmp gt 0){
            i=i+1;
            start=tmp+Len(word);
        }else{
            start=start+1;
        }
    }
    return i;
}