For ViewHelper <f:for>
Loop ViewHelper which can be used to iterate over arrays.
Implements what a basic PHP foreach()
does.
Examples
Simple Loop
<f:for each="{0:1, 1:2, 2:3, 3:4}" as="foo">{foo}</f:for>
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Output:
1234
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Output array key
<ul>
<f:for each="{fruit1: 'apple', fruit2: 'pear', fruit3: 'banana', fruit4: 'cherry'}"
as="fruit" key="label"
>
<li>{label}: {fruit}</li>
</f:for>
</ul>
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Output:
<ul>
<li>fruit1: apple</li>
<li>fruit2: pear</li>
<li>fruit3: banana</li>
<li>fruit4: cherry</li>
</ul>
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Iteration information
<ul>
<f:for each="{0:1, 1:2, 2:3, 3:4}" as="foo" iteration="fooIterator">
<li>Index: {fooIterator.index} Cycle: {fooIterator.cycle} Total: {fooIterator.total}{f:if(condition: fooIterator.isEven, then: ' Even')}{f:if(condition: fooIterator.isOdd, then: ' Odd')}{f:if(condition: fooIterator.isFirst, then: ' First')}{f:if(condition: fooIterator.isLast, then: ' Last')}</li>
</f:for>
</ul>
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Output:
<ul>
<li>Index: 0 Cycle: 1 Total: 4 Odd First</li>
<li>Index: 1 Cycle: 2 Total: 4 Even</li>
<li>Index: 2 Cycle: 3 Total: 4 Odd</li>
<li>Index: 3 Cycle: 4 Total: 4 Even Last</li>
</ul>
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Source code
Go to the source code of this ViewHelper: ForViewHelper.php (GitHub).
Arguments
The following arguments are available for the for ViewHelper:
as
-
- Type
- string
- Required
- 1
The name of the iteration variable
each
-
- Type
- array
- Required
- 1
The array or \SplObjectStorage to iterated over
iteration
-
- Type
- string
The name of the variable to store iteration information (index, cycle, total, isFirst, isLast, isEven, isOdd)
key
-
- Type
- string
Variable to assign array key to
reverse
-
- Type
- boolean
- Default
- false
If true, iterates in reverse