Cycle ViewHelper <f:cycle>

This ViewHelper cycles through the specified values. This can be often used to specify CSS classes for example.

To achieve the "zebra class" effect in a loop you can also use the "iteration" argument of the for ViewHelper.

Examples

These examples could also be achieved using the "iteration" argument of the ForViewHelper.

Simple

<f:for each="{0:1, 1:2, 2:3, 3:4}" as="foo">
    <f:cycle values="{0: 'foo', 1: 'bar', 2: 'baz'}" as="cycle">
        {cycle}
    </f:cycle>
</f:for>
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Output:

foobarbazfoo
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Alternating CSS class

<ul>
    <f:for each="{0:1, 1:2, 2:3, 3:4}" as="foo">
        <f:cycle values="{0: 'odd', 1: 'even'}" as="zebraClass">
            <li class="{zebraClass}">{foo}</li>
        </f:cycle>
    </f:for>
</ul>
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Output:

<ul>
    <li class="odd">1</li>
    <li class="even">2</li>
    <li class="odd">3</li>
    <li class="even">4</li>
</ul>
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Source code

Go to the source code of this ViewHelper: CycleViewHelper.php (GitHub).

Arguments

The following arguments are available for <f:cycle>:

Name Type Default
values
 mixed
as
 mixed
values
Type
mixed

The array or object implementing ArrayAccess (for example SplObjectStorage) to iterated over

as
Type
mixed
Required

true

The name of the iteration variable