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    <p>First <code>preDispatch()</code> is called for instances of <code>Zend_Controller_Plugin_Abstract</code>. Here you have the request and response objects, so you might filter the request or do some preparation using the information from the request.</p> <p><code>init()</code> of the <code>Zend_Controller_Action</code> is called next as part of the constructor. It's there to help you initialize your controller, without having to override and repeat the signature of the constructor (<code>Zend_Controller_Action::__contruct()</code>).</p> <p>The controller's <code>preDispatch()</code> method is called here. You can call <code>$request-&gt;setDispatched(false)</code> to skip the current action - not sure if you can do that in <code>init()</code></p> <p>Then your action method is called (<code>viewAction()</code> for example). Here you do your normal work like fetching stuff from the model and populating the view.</p> <p>So the distinction should now be clear: </p> <ul> <li>If you want something to be executed before all actions - put it in a plugin and use one of the hooks (besides <code>preDispatch()</code> there is <code>routeStartup</code> and <a href="http://framework.zend.com/manual/en/zend.controller.plugins.html" rel="noreferrer">others</a>),</li> <li>if you want before every action in a controller - <code>init</code> or <code>preDispatch()</code>,</li> <li>if only for a single action - the action itself.</li> </ul> <blockquote> <p>What happens between <code>init()</code> and <code>preDispatch()</code> function calls?</p> </blockquote> <p>Almost nothing - <code>preDispatch()</code> is executed, and if you haven't called <code>$request-&gt;setDispatched(false)</code>, the action is executed.</p>
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    1. POZend Framework: What are the differences between init() and preDispatch() functions in controller objects?
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    1. USEmil Ivanov
    1. USEmil Ivanov
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    1. POZend Framework: What are the differences between init() and preDispatch() functions in controller objects?
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    1. COAlso see http://framework.zend.com/manual/en/zend.controller.plugins.html
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      1. USGordon
    2. CO`if you want before every action in a controller - init or preDispatch()` In fact, you haven't answered the question itself. From structural point of view, **on single controllers**, when init() should be used instead of preDispatch() (not plugins)? For example: We never see the AjaxContext helper being utilized in preDispatch, but init(). So which is the conceptual difference between the two? Not technical. If you understand what I mean. If you simply can use one or another, there isn't difference. But I think there's something.
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      1. USKeyne Viana
    3. COJust a tip about the `ajaxContext` I'm referring to the docs when we see the examples on single controllers: http://framework.zend.com/manual/en/zend.controller.actionhelpers.html#zend.controller.actionhelpers.contextswitch.ajaxcontext
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