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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98 views

Modify how gallery.js builds the shortcode [gallery …] in tinyMCE?

The post editor helpfully removes default arguments like columns="3" from the [gallery] shortcode. How do you tell it to remove a custom attribute that has a default value? The answer at Enhance ...
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1answer
2k views

Wordpress metabox file upload in custom post [duplicate]

I'm relatively new to wordpres development and am stuck at this issue. I have created a custom post type which shows up in the admin menu. I need a metabox in it with a file upload field. The metabox ...
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1answer
277 views

Saving Plugin settings to the database

I'm not a complete novice with php or wordpress but am wanting to approach this problem the most efficient way so believe asking here will help. I've got a plugin that randomly generates a quote - ...
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1answer
273 views

Hello dolly type plugin that allows people to add their own

I am making a plugin that shows a random joke on a custom 404 page via shortcode and it is basically near enough the same as the default hello dolly plugin, where the jokes are hardcoded into the ...
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1answer
112 views

Common functionality between my own plugins

I read that when creating new post types, creating a settings page, and creating a new taxonomy, you should create a plugin. So I have done that. But I have functionality, which could be generalized, ...
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2answers
57 views

Calling apply_filters on non-documented hooks

I have been trying to learn how to write plugins and I thought the best way would be to look at other plugins. I was taking a look at this one and the first lines /** * Plugin Name: Media Library ...
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1answer
32 views

update_meta_user difference in i:1 and b:1, how to write b:1

This code leads to wp_cababilities being written to the database but with an i:1 in front. if( $new_roles === 'administrator' ) { $capabilities = array ...
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1answer
70 views

Create a Page via plugin

My problem is to show a list of products read from db tables. I know how to read them and I am able to produce the table, but only using a shortcode embedded in a page that I've created via WP. I ...
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2answers
554 views

Implement phpunit testing on a plugin

I've just finished writing a WordPress plugin implementing shortcode tag based autocompletion based on values retrieved from a database given an id set on a cookie. The plugin has a variety of ...
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2answers
419 views

Hook for post permalink update

I would like to know what hook should I used when the permalink/url of a post is modified. My goal is to get the old permalink and new permalink so I can used it for my plugin. Thanks. [EDIT] Just ...
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2answers
476 views

enqueue script only if it is not already enqueue

I want to include a script in a shortcode output, so I am trying this: function my_shortcode( $atts, $content = null ) { extract(shortcode_atts(array( 'title' => '', ), ...
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6answers
208 views

Pages 404 in wordpress

First of all, I am very new to wordpress and know almost nothing about it. When I create the page foo using in wp-admin, I get the message that the page is created. When I click on view page, it ...
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1answer
36 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
350 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
3k views

How to Use Checkbox in Custom Option Page Using The Setting API

Can you please let me know how I can add a checkbox to Setting API in creating Custom Options Page? I am using the following code to add a txt box which is working perfectly but I am totally confused ...
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1answer
363 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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1answer
143 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
1k 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
159 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
639 views

Check spam in custom form - akismet

I have a plugin that has input form, I have decided to check submitted data with akismet. I do have API key, WP comments are filtered correctly... here is, what I found: ...
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2answers
750 views

How to check if current static page is frontpage from admin plugin

I set static page as front page. I need to know if user currently on homepage in my custom plugin. Functions is_home() and is_front_page() doesn't works, since homepage is static page. I can get an ...
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1answer
70 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
640 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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2answers
655 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
115 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
373 views

Script won't load via plugin class

I'm not sure why this script is not loading or producing any load errors via Firebug. Here is my plugin script: class AV_Slideshow{ function __construct(){ $this->hooks(); } function ...
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1answer
321 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
218 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
947 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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1answer
161 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
970 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
159 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
291 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
3k 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
1k 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
1k 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
307 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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1answer
378 views

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

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
194 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
330 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
456 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
720 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
240 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
513 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
226 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
2k 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
35 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 ...