CFLib.org – Common Function Library Project

Description:
Given the date of birth, returns age. ie: 23y or 11m or 6d. Also see GetCurrentAge, which will only return a strict year result.

Return Values:
Returns a string.

Example:

<cfoutput>ageSinceDOB(1/26/1979)=#ageSinceDOB("1/26/1979")#</cfoutput>

Parameters:

Full UDF Source:

/**
 * Given the date of birth, returns age.
 * 
 * @param dob      Date of birth. (Required)
 * @return Returns a string. 
 * @author Alexander Sicular (as867@columbia.edu) 
 * @version 1, November 18, 2002 
 */
function ageSinceDOB(dob) {
  
  var ageYR = DateDiff('yyyy', dob, NOW());
  var ageMO = DateDiff('m', dob, NOW());
  var ageWK = DateDiff('ww', dob, NOW());
  var ageDY = DateDiff('d', dob, NOW());
  var age = "";
  
  if ( isDate(dob) ){    
    if (now() LT dob){
      age = "NA";
    }else{  
      if (ageYR LT 2) {
        age = ageMO & "m";
          if (ageMO LT 1) {
            age = ageWK & "w";
          }
          if (ageWK LT 1) {
            age = ageDY & "d";
          }
      }else{
        age = ageYR & "y";
      }  
    }  
  }else{    
    age = "NA";
  }  
  return age;
}