Description

Determines the number of elements in an array.

Returns

The number of elements in an array.

Category

Array functions

Function syntax

ArrayLen(array)

See also

ArrayIsEmpty; "Functions for XML object management" in the ColdFusion Developer's Guide

History

ColdFusion MX: Changed behavior: This function can be used on child XML objects.

Parameters

Example

<h3>ArrayLen Example</h3>
<cfquery name = "GetEmployeeNames" datasource = "cfdocexamples">
    SELECT FirstName, LastName FROM Employees
</cfquery>
<!--- Create an array. --->
<cfset myArray = ArrayNew(1)>
<!--- Set element one to show where we are. --->
<cfset myArray[1] = "Test Value">
<!--- Loop through the query and append these names
    successively to the last element. --->
<cfloop query = "GetEmployeeNames">
    <cfset temp = ArrayAppend(myArray, "#FirstName# #LastName#")>
</cfloop>
<!--- Show the resulting array as a list. --->
<cfset myList = ArrayToList(myArray, ",")>
<!--- Output the array as a list. --->
<cfoutput>
    <p>The contents of the array are as follows:</p>
    <p>#myList#</p>
    <p>This array has #ArrayLen(MyArray)# elements.</p>
</cfoutput>