Adobe COLDFUSION 9 Manual page 95

Developing applications

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DEVELOPING COLDFUSION 9 APPLICATIONS

The CFML Programming Language

• Populating an array with the

• Populating an array from a query

Populating an array with the ArraySet function

You can use the

function to populate a 1D array, or one dimension of a multidimensional array, with some

initial value, such as an empty string or zero. This can be useful to create an array of a certain size, without adding data

to it right away. One reason to do this is so that you can reference all the array indexes. If you reference an array index

that does not contain some value, such as an empty string, you get an error.

function has the following form:

ArraySet (arrayname, startrow, endrow, value)

The following example initializes the array myarray, indexes 1 - 100, with an empty string:

ArraySet (myarray, 1, 100, "")

Populating an array with the cfloop tag

tag provides a common and efficient method for populating an array. The following example uses a

MonthAsString

outputs data in the array to the browser.

#months[loopcount]#<br>

Using nested loops for 2D and 3D arrays

To output values from 2D and 3D arrays, employ nested loops to return array data. With a one-dimensional (1D)

array, a single

is sufficient to output data, as in the previous example. With arrays of dimension greater than

one, you maintain separate loop counters for each array level.

Nesting cfloop tags for a 2D array

The following example shows how to handle nested

tags to populate the array:

function to populate a simple 1D array with the names of the months. A second

tags to output data from a 2D array. It also uses nested

Last updated 8/5/2010