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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3
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1answer
431 views

How Does Wordpress Uninclude/Deactivate A Plugin?

Wordpress uses the Observer Pattern for its plugin system and operates on the premise of checking if a plugin is activated, scanning the plugins directory and storing everything in an array in the ...
3
votes
3answers
10k views

Wordpress Vote Plugin - Vote Once and Track User

I've been looking through voting plugins and cannot seem to find one that works for me. I'm hoping you can help me out before I have to build my own as I'm tight on time. I have a page that will be ...
2
votes
3answers
64 views

Change of query var in pre_get_posts not maintained

I'm creating a plugin that adds a custom feed. I am using a pre_get_posts filter to change the posts_per_page query var to -1 (to get all items of a custom post type). However, if I dump the $wp_query ...
2
votes
1answer
133 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, ...
2
votes
2answers
518 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 ...
2
votes
1answer
323 views

Custom admin column disappearing when using Quick Edit [duplicate]

I have added a featured image column to my posts in the WP admin. This all works fine except when using the Quick Edit feature. Upon update, the column disappears, or rather isn't returned by the ajax ...
2
votes
4answers
478 views

How to avoid plugin name conflicts from the upgrade notifier?

I've wrapped a quick hack as a plugin to add Google Analytics to my site. Named it "Google Analytics" and, sure enough, WP offered me to upgrade my v0.1 plugin to some random plugin from the plugin ...
2
votes
1answer
36 views

Make the plugin directory recognize new version numbers

I updated readme.txt Stable Tag and tagged versions 0.2, 0.3 and latest 0.3.1 in SVN. After checkin, the new version is recognized only partly: On the dev-tab it links to the latest version (0.3.1) ...
2
votes
1answer
257 views

Are shortcodes case-sensitive?

If I write a plugin and register a shortcode using this code: add_shortcode('footag', 'footag_func'); and a user uses this in their post: [FOOTAG] Is it supposed to work?
2
votes
3answers
2k views

Shortcode adding p and br tags

I apologize as I realize this has been asked before and I believe the issue is with wpautop function adding closing p or br tags but every solution I've found has not worked so I'm at a loss for ...
2
votes
2answers
213 views

Multisite, sharing content by URL

I have a network of two sites, A.example.com and B.example.com. I'd like it so that if I create a page on A with a permalink of /Widgets I can access it on B using the same relative permalink but ...
2
votes
1answer
263 views

Scheduled event does not run at midnight

I have an event scheduled to fetch feeds from different sources at midnight. I believe for some reason it is not being triggered. I use Core Control plugin for testing. When I 'Run Now' through it, ...
2
votes
1answer
595 views

When to check if a function exists

I've just started developing a WP plugin, and i've been reading some code from other plugins as a way to get started. I've seen a couple of plugins that wrap all or some of their functions in the ...
2
votes
1answer
908 views

How to duplicate custom menu settings to export to another site

I'm trying to write a routine that will pull items from the wp_options table in order to transport them to another site. The problem I have is that if the source site has custom menus, I'd like to ...
2
votes
3answers
977 views

How to: get main plugin/theme file?

There're the functions get_theme_data(); & get_plugin_data(); - which both use get_file_data(); that needs a specific file as $input. I got a set of classes that may be used by a plugin or a ...
1
vote
1answer
61 views

An echo line in a transition_post_status action leads to “cannot modify header information - headers already sent by”

I tried to set up an action hook with transition_post_status. Inside I wanted to set up a few conditional statements. To see if everything works I wanted to place a debug statement. Problem is as soon ...
1
vote
0answers
136 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 ...
1
vote
1answer
3k 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 ...
1
vote
1answer
380 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 - ...
1
vote
1answer
292 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 ...
1
vote
2answers
65 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 ...
1
vote
1answer
35 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 ...
1
vote
1answer
71 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 ...
1
vote
2answers
611 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 ...
1
vote
1answer
39 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 ...
1
vote
1answer
393 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() ...
1
vote
1answer
4k 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 ...
1
vote
1answer
414 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 ...
1
vote
1answer
149 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 = ...
1
vote
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?
1
vote
1answer
170 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 ...
1
vote
1answer
689 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: ...
1
vote
2answers
927 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 ...
1
vote
1answer
71 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 ...
1
vote
2answers
700 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 ...
1
vote
1answer
1k 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 ...
1
vote
2answers
721 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 ...
1
vote
2answers
121 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: ...
1
vote
2answers
406 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 ...
1
vote
2answers
413 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 ...
1
vote
1answer
330 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 ...
1
vote
1answer
222 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?
1
vote
2answers
990 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 ...
1
vote
1answer
162 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 ...
1
vote
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"); ...
1
vote
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 ...
1
vote
1answer
165 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 ...
1
vote
5answers
310 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', ...
1
vote
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 ...
1
vote
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 ...