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## /application/controllers/EnglandController.php
<?php
/**
 * Simple example of using the context switch
 * * @author      Dave Marshall 
 */
 
class EnglandController extends Zend_Controller_Action
{    public function init()
    {
        $this->_helper->contextSwitch()
                      ->addActionContext('a', array('xml', 'json'))
                      ->setAutoJsonSerialization(true)                      ->initContext();
    }
 
    public function aAction()
    {        $this->view->team = 'a';
        $this->view->players = array(
            'David James',
            'Ashley Cole',
            'John Terry',            'Rio Ferdinand',
            'Glen Johnson',
            'Joe Cole',
            'Steven Gerrard',
            'Frank Lampard',            'David Beckham',
            'Wayne Rooney',
            'Michael Owen',
        );
    }}
 
## /application/views/scripts/england/a.xml.phtml
<?php echo "<?xml version="1.0" ?>";?>
<team><name><?php echo $this->team; ?></name>
<players>
    <?php foreach($this->players as $player):?>
        <player><?php echo $player; ?></player>
    <?php endforeach; ?></players>
</team>
 
## http://yourhost/england/a/format/xml would output
<?xml version="1.0" ?><team><name>a</name>
<players>
            <player>David James</player>
            <player>Ashley Cole</player>
            <player>John Terry</player>            <player>Rio Ferdinand</player>
            <player>Glen Johnson</player>
 
            <player>Joe Cole</player>
            <player>Steven Gerrard</player>            <player>Frank Lampard</player>
            <player>David Beckham</player>
            <player>Wayne Rooney</player>
            <player>Michael Owen</player>
     </players>
</team>
 
## http://yourhost/england/a/format/json would output
{    "team":"a",
    "players":[
        "David James",
        "Ashley Cole",
        "John Terry",        "Rio Ferdinand",
        "Glen Johnson",
        "Joe Cole",
        "Steven Gerrard",
        "Frank Lampard",        "David Beckham",
        "Wayne Rooney", 
        "Michael Owen"
    ]
}