WordPress Plugins allow easy modification, customization, and enhancement to a WordPress blog. Instead of changing the core programming of WordPress, you can add functionality with WordPress Plugins.

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1answer
44 views

How to use is_multisite() in a must-use-plugin?

I want this code to be executed in a plugin in the mu-plugins folder. When executing in functions.php everything works fine, but when I try it as a plugin in mu-plugins this creates a blank page. if ...
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1answer
471 views

Registration Form Validation in wordpress

I have validate the custom field in registration form, I read out the codex of wordpress so that itself i do this way. But I figure out it throws error like this one Call to a member function add() ...
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1answer
478 views

When is it too late to call the action wp_enqueue_scripts?

I'm creating a plugin that always enqueues a script in the footer. I also have a function that if called would enqueue an additional script that depends on the other one. Here is the basic format of ...
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5answers
9k views

what's the meaning of the field wp_capabilities in table wp_usermeta

I am new to wordpress, in table wp_usermeta I notice that we have a row meta_key meta_value wp_capabilities a:1:{s:13:"administrator";b:1;} First, what's the meaning of ...
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1answer
168 views

Why are two functions over-riding each other?

I have function in my plugin that is: add_filter('comment_text', 'commentimage_comment_text'); function commentimage_comment_text($comment = '') { $options = get_option('commentimage'); $id = ...
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2answers
2k views

How do I only load js on the post-new.php and post.php pages in admin?

I have some script that is loading in the admin. I only need it to load on the new post and edit posts screens. What is the best way to do this?
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1answer
177 views

Using ob_get_content to get_search_form puts into infinite loop

I am trying to change the look of my searchform. It basically needs to have two text fields. I want this to be in form of a plugin, which anyone can activate. SO obviously I do not have any control ...
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1answer
75 views

Adding Second Plugin Author

Background: I have a few plugins in the WordPress directory and have recently made the decision to team up with another individual to grow one plugin faster. I'm planning on adding him as a plugin ...
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2answers
817 views

Saving metabox repeatable fields

This is a code that I'm adapting from https://gist.github.com/2057532. The problem is that I'm not being able to save the content from the new fields that I created. I had checked the other questions ...
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1answer
2k views

How to determine wordpress base path when wordpress core is not loaded

I have a command line script for maintaining a wordpress plugin and have to determine the wordpress base path to be able to load the wordpress core. I could just assume the script is several levels ...
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2answers
1k views

remove custom taxonomy metabox form custom post type

I have created a custom post type 'hotel' and custom 'taxonomy' so when administrator creates a new hotel and saves it it related custom taxonomy automatically get created but I don't want to show ...
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2answers
131 views

Failed to invoke other hook from the init hook

Related to this question (Use wp init hook to call other hooks?) but not the same. Sometimes, I found that the hook will failed to run when I place inside the init hook, e.g. Not Work: ...
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2answers
542 views

how to not show plugin in admin area

I'm just getting started with wordpress development. I'm trying to create a simple plugin that show results from a db in a table. I can do this, but I'm having trouble with the plugin showing at the ...
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1answer
350 views

Plugin Settings not Saving on Ajax re-ordered table

This is an extension of Update Option Stored in Multi-Dimensional Array which was help getting draggable plugin options to save via ajax (which works), but unfortunately this is specific to the actual ...
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1answer
235 views

How to post form in ajax mode and handle it in wordpress

currently I can only do it in a normal non-wordpress way. So, does wordpress provide a solution for this circumstance?
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2answers
1k views

Using Ajax call in jQuery doesn't work in widget

So I'm in the midst of creating a new conversion widget and I'm having some trouble getting the Ajax call to work in my widget. (works perfectly outside of WordPress). The problem at the moment is ...
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2answers
549 views

Wordpress Settings API: saving multiple rows of similar data

I've been experimenting with the plugin options starter kit but can't find a way to save multiple rows of similar data using the Settings API. Example of what I'm trying to save: ...
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1answer
167 views

Master menu item for multiple plugins?

I guess this question is more or less about aesthetics and organization rather than functionality, but I'm curious nonetheless... I know I can add a custom menu item in the dashboard for my plugin ...
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2answers
1k views

Upload to a remote server using wp_remote_post

I'am developing a plugin that will push files to a remote server via http upload. Currently I got it to work with CURL doing something like this: $post = array("post_file"=>"@/path/FILE.EXT"); ...
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3answers
4k views

Add post thumbnail from external image with plugin

I'm currently writing a plugin modifying the post content with the wp_insert_post_data filter. While doing that I would also like to add a post thumbnail using an external image url. It doesn't really ...
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1answer
819 views

Is it possible for a plugin to register a page template file?

Is there a way for a plugin to house page template files and have them available after plugin activation? E.g, I have a plugin that requires specific page page templates to be used, so I'd like ...
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1answer
171 views

Force plugin to fail activation

I'm writing a plugin that will be using custom fields added by a theme. Because of this, it would be ideal if my plugin not be able to activate should these fields not exist. How do I go about ...
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5answers
340 views

Problems with removing admin bar

I am trying to remove the admin bar from a theme front end of a theme. I found the following code block: add_filter( 'show_admin_bar', '__return_false' ); remove_action( 'personal_options', ...
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1answer
4k views

wp_mail not recognizing cc and bcc headers

I am using WordPress 3.1.3 I am getting following notices when I use wp_mail with cc and bcc headers. Notice: Undefined variable: cc in ...
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1answer
1k views

How to use WP default post list tables in a plugin?

I'm developping a plugin to manage a base of users and I'd like to show them in the same type of table used in other parts of the WP admin (post lists, user lists, etc.), I'd like to have the same ...
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3answers
3k views

Conflicting save_post functions when passing the post id and saving custom meta boxes for different post types

Post save functions are conflicting with each other when adding them to the save_post action hook. 2 different custom post types with 2 different (one for each post type) custom meta boxes. I'm ...
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2answers
2k views

Menu Error in Admin Console with Custom Plugin: You do not have sufficient permissions to access this page

(Moderator's note: Original title was "Getting error: You do not have sufficient permissions to access this page. Trying to build custom plugin") I'm trying to write my own custom WordPress plugin, ...
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2answers
2k views

How do I determine if a category exists by ID?

I know I can get a categories ID by calling get_cat_ID('category-slug'), however, what is the method to call to determine if a category exists by ID when you don't know the slug? In other words, I ...
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2answers
324 views

How can I view all WP generated thumbnails in Media Manager?

When WP creates thumbnails from the original uploaded image, they are hidden from view inside the Media Manager listing. Can they be made visible, via some filter or action so that you can selectively ...
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0answers
406 views

Ad rotator script for Adsense/CPA rotations. Ideas? Existing Solutions? [closed]

My theme handles Adsense inclusion automatically for the end user. I'm looking to add a feature that allows them to rotate in CPA ads in place of the adsense ads (on a set frequency by percentage). ...
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2answers
205 views

Is it possible to use add_filter from a theme to alter a plugin's function?

Can add_filter() be used to intercept a plugin function? I'm not having any success, so I'm thinking perhaps I'm doing this wrong. The plugin is "All in One SEO" and the function I'm trying to ...
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1answer
443 views

How can I limit the amount of characters used for description in the manage categories grid?

My category descriptions consist of whole pages of content. When I view the manage categories screen, the grid does not truncate the text but rather, shows all of it. I realize I could turn off the ...
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3answers
465 views

Plugin options table,is the data serialized

I am planning on building a plugin and i need to know if the data stored in the options table i will create for the plugin will be serialized or it will be in the ordinary sql format.
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1answer
754 views

Converting theme widgets to plugins?

i need a help, i have a theme, where in i have a twitter widget, i just want to separate it, and keep it in different file, as if it is a plugin, here are is the complete code, what i have to do? ...
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2answers
253 views

How can I call “preview post” from wp_remote_get with authentication?

I've got a plugin that needs to interogate the post preview (the contents of the rendered page that's presented when the user clicks "Preview Post". To attempt to obtain this input stream into a code ...
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1answer
568 views

What URL do you pass to wp_remote_get to load the body of the current post's preview?

In the code below, I'm attempting to get a reference to the body content of the current post's fully rendered preview... $response = ...
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2answers
229 views

How to determine, from plugin script, if active theme has <h1>The Post Title</h1>

My plugin needs to know if the currently active theme places the post title in H1 heading tags? I'm looking for suggestions on approaches to create script that could discern this. UPDATE: The plugin ...
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6answers
5k views

The plugin generated 80 characters of unexpected output!

I'm getting this message each time I activate my plugin: The plugin generated 80 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with ...
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1answer
19 views

This doesnt work for Plugin get_template_directory_uri()

function Zumper_widget_enqueue_script() { wp_enqueue_script('jquery-repeater-form',get_template_directory_uri().'/admin/js/sample.js'); } add_action('admin_print_scripts-widgets.php', ...
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1answer
89 views

How can I hook into existing WordPress Bulk actions?

I am creating a plugin which syncs both standard WP data and custom fields within a custom meta box on post edit pages, to an external resource using SQL queries. However my functions are currently ...
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0answers
383 views

WordPress REST API Plugin Development - Add Custom Endpoint

I have this question on Stack Overflow but thought here might be a better place for it... I'm almost certainly doing something stupid - or rather not doing something obvious that I should have done. ...
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2answers
60 views

Add Top-Level Menu that opens URL

Below code adds My Page button in Admin Menu. It will take you to your author page when you click on it. However, it also opens up new page(Empty page). I want it to just take you to author page and ...
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1answer
234 views

Submit form to a different PHP file in the same plugin folder

I want to submit a form to another PHP file which lays in the same folder: wp-content/plugins/my-plugin-folder The form action attribute looks like this: <form name="lookat" type="submit" ...
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2answers
236 views

Plugin Loading Scripts and Styles on Every Page - Even when not being used

I have a plugin that is using Class style programming. I'm completely stumped - scripts are being loaded on every single page, even if the plugin is not being used on that page. Since the plugin ...
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0answers
175 views

pre_get_post alter current post id

For some purpose, we want to apply a change to the Wordpress flow that affect's WooCommerce product page being displayed. When a product page is displayed (e.g. www.mysite.com/?product=my-product), ...
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1answer
249 views

Sessions not creating correctly in custom function

I am working with an external application called The Next Generation of Genealogy Site-Building (TNG) and integrating it into WordPress. It has been an easy matter to get the data to display inside a ...
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3answers
380 views

Displaying External Data - Not Posts

I am creating a plugin that needs to display external data, not wordpress posts. What I have done: registered rewrites so wp recognizes my archive/single URLs, hooked into template_include to direct ...
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1answer
321 views

How to hide page links from theme menu

I'm working on a plugin, I programatically create some pages in posts table, the links appear in the theme menu(front end), I don't want some of these page links to appear, how do I do this?
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0answers
104 views

Issue on Counting CPT's Under Taxonomy Term

I am using this code to count number of Custom Post Type $tax_terms = get_terms($tax, $args); foreach ($tax_terms as $tax_term) { echo '<li>' . '<a href="' . ...
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2answers
277 views

Add category slug as class attribute in a link array

This incredible website and the genius developers here have helped me significantly in the course of my WP Dev over the years, firstly THANK YOU. I am now faced with a problem that I have been trying ...