Description
Determines the number of elements in an array.
Returns
The number of elements in an array.
Category
Function syntax
arrayLen(array) |
See also
ArrayIsEmpty; Functions for XML object management in Modifying a ColdFusion XML object in the Developing ColdFusion Applications
History
ColdFusion MX: Changed behavior: This function can be used on child XML objects.
Parameters
Parameter |
Description |
|---|---|
array |
Name of an array |
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> |
