Is there a way to limit search to post titles? I know I can modify query.php core file but there must be a way to do it with hooks right? Thanks in advance! 1 Here’s a filter that’ll do the trick. Drop it into your theme’s functions.php or a plugin. /** * Search SQL filter … Read more
I am writing a plugin that fetches some extended user info from a remote service and I need it to execute its function each time a user logs in. Is there a hook that gets fired after login that I can add an action to? 2 The action hook wp_login runs when the user logs … Read more
i try to hook when post is updated but all hook i try never executed except updated_post_meta add_action(‘updated_post_meta’, ‘my_function’); function my_function($post_id) { echo ‘This is my post ID : ‘.$post_id; } I’ve tried this add_action(‘save_post’, ‘my_function’); but no id was echo out, or maybe this message already echo but never renders because of redirect header … Read more
I’m trying to debug a plugin which I didn’t develop and I want to list all the registered actions. I’ve read this SO thread: WordPress: How do I get all the registered functions for ‘the_content’ filter – StackOverflow But it’s specific to one hook and it’s about filters, not actions. Is there any variable like … Read more
I’m surprised by the fact that my function that I’ve tacked onto the save_post action fires when I click the “New Post” link in the Admin Dashboard. Note – this is before I’ve pressed Save or Update, and it fires immediately, not after an elapsed time or auto-update. On the other hand, when I then … Read more
Is there a way to know what functions are hooked to a particular hook? For example if I’d like to know what functions are hooked to the wp_head hook. 6 Look into the global variable $wp_filter. See my plugin for a list of all comment filters for an example: <?php /* Plugin Name: List Comment … Read more
Is it possible to reference a class instead of a function in ‘add_action’? Can’t seem to figure it out. Here is just a basic example of the function in question. add_action( ‘admin_init’, ‘MyClass’ ); class MyClass { function __construct() { .. This is where stuff gets done .. } } So yeah, that doesn’t work. … Read more
I have been looking at the plugin API a bit more in depth recently and I was wondering what real differences there were between action and filter hooks. They both are events that receive data as a parameter and they seem to both be able to do the same things. Obviously I see that actions … Read more
Is a way to pass my own parameters to the function in add_filter or add_action. For example take a look in the following code: function my_content($content, $my_param) { do something… using $my_param here … return $content; } add_filter(‘the_content’, ‘my_content’, 10, 1); Can I pass my own parameter? something like: add_filter(‘the_content’, ‘my_content($my_param)’, 10, 1) or add_filter(‘the_content’, … Read more
In a situation where a plugin has encapsulated its methods within a class and then registered a filter or action against one of those methods, how do you remove the action or the filter if you no longer have access to that class’ instance? For example, suppose you have a plugin that does this: class … Read more
