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POwordpress: actions, filters & hooks
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copied!<p>I'm quite new to this (understanding the WP Guts), and I wanted to understand the Hooks and Filters better, I can't get it right from Codex.</p> <p>I did a simple test, </p> <p>the idea is to override the get_title() method in order to erase the "Protected: " sentence from the title if the page is protected, there is a protected_title_format filter, and I thought using it ...</p> <p>that line in <em>post-template.php</em> specifies:</p> <pre><code>$protected_title_format = apply_filters('protected_title_format', __('Protected: %s')); </code></pre> <p>for what I could get from CODEX, I need to remove that filter and add my own, like</p> <pre><code>remove_action('protected_title_format'); apply_filters('protected_title_format', __('MY OWN PAGE Protected: %s')); </code></pre> <p>using, off course something like</p> <pre><code>// Removing action function remove_title_action() { remove_action('protected_title_format','get_the_title',3); } add_action('init','remove_title_action'); // Adding custom function add_action('protected_title_format','fancy_title', 3, 4); function fancy_title($id = 0) { $post = &get_post($id); $title = $post->post_title; echo "I'm the king of the world!... >" . $title . "< & >" . $post . "<"; if ( !is_admin() ) { if ( !empty($post->post_password) ) { $protected_title_format = apply_filters('protected_title_format', __('MY OWN PAGE Protected: %s')); $title = sprintf($protected_title_format, $title); } } return apply_filters( 'the_title', $title, $post->ID ); } </code></pre> <p>I can get the echo to output, but I dont get the $id (and for that, no $title or $post), this method is a copy of get_title() stripping out everything but the protected part string.</p> <p>Can anyone care to explain me <strong>how this works</strong>? Thank you</p> <hr> <p><strong>P.S.</strong> I want to learn, this is the idea of this question, not someone to tell me "Hey, just go to post-template.php and change it", because then I would ask "How about when I update WP...?" !</p>

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