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<?xml version="1.0" encoding="UTF-8"?>
<!-- Reviewed: no -->
<sect3 id="zend.view.helpers.initial.cycle">
<title>Cycle Helper</title>
<para>
The <classname>Cycle</classname> helper is used to alternate a set of values.
</para>
<example id="zend.view.helpers.initial.cycle.basicusage">
<title>Cycle Helper Basic Usage</title>
<para>
To add elements to cycle just specify them in constructor
or use <methodname>assign(array $data)</methodname> function
</para>
<programlisting language="php"><![CDATA[
<?php foreach ($this->books as $book):?>
<tr style="background-color:<?php echo $this->cycle(array("#F0F0F0",
"#FFFFFF"))
->next()?>">
<td><?php echo $this->escape($book['author']) ?></td>
</tr>
<?php endforeach;?>
// Moving in backwards order and assign function
$this->cycle()->assign(array("#F0F0F0","#FFFFFF"));
$this->cycle()->prev();
?>
]]></programlisting>
<para>
The output
</para>
<programlisting language="php"><![CDATA[
<tr style="background-color:'#F0F0F0'">
<td>First</td>
</tr>
<tr style="background-color:'#FFFFFF'">
<td>Second</td>
</tr>
]]></programlisting>
</example>
<example id="zend.view.helpers.initial.cycle.advanceusage">
<title>Working with two or more cycles</title>
<para>
To use two cycles you have to specify the names of cycles. Just set second parameter in
cycle method. <command>$this->cycle(array("#F0F0F0","#FFFFFF"),'cycle2')</command>. You
can also use setName($name) function.
</para>
</example>
<programlisting language="php"><![CDATA[
<?php foreach ($this->books as $book):?>
<tr style="background-color:<?php echo $this->cycle(array("#F0F0F0",
"#FFFFFF"))
->next()?>">
<td><?php echo $this->cycle(array(1,2,3),'number')->next()?></td>
<td><?php echo $this->escape($book['author'])?></td>
</tr>
<?php endforeach;?>
]]></programlisting>
</sect3>
<!--
vim:se ts=4 sw=4 et:
-->
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