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
votes
1answer
966 views

Changing upload directory for plugin uploads only

I've spent a lot of time reading the other threads on this question, but I just cannot get my code to function properly. I'm building a plugin, and I've set up an upload form on my custom admin page, ...
10
votes
1answer
209 views

Does the number of downloads displayed for a plug-in in the WordPress.org plug-in directory include automatic updates?

I'm wondering how the number of downloads displayed in the plugin-directory correlates to the number of actual websites using the plug-in. I realise some people will download and never install and ...
8
votes
3answers
2k views

Best way to abort plugin in case of insufficient PHP version?

You write a plugin which requires PHP 5.1. Someone tries to install it on a server with PHP 4. How do you deal with that in a safe and user-friendly manner?
5
votes
1answer
346 views

Completely remove WP_Admin_Bar for specific user roles

How do I hide/remove the admin bar that is displayed when a user with specific role is logged in? I figured I have to do something with remove_menu(), but not exactly what and how. Codex
4
votes
3answers
929 views

How to delete custom taxonomy terms in plugin's uninstall.php?

I am writing my plugin's uninstall.php file and would like it to delete any terms that were created in the plugin's custom taxonomy. In the plugin's uninstall.php file I am using this: // Delete all ...
4
votes
1answer
1k views

Admin config screen without menu

I want to create a sub config from some page on admin panel, eg: I've set config menu this way: add_menu_page( 'E+', 'CRE+', 8, 'cr_e_plus_user_config', 'cr_e_plus_user_config'); add_submenu_page( ...
3
votes
1answer
168 views

Update a Plugin while maintaining back compatibility: general

How can I make updates a public plugin of mine without breaking the plugin for all existing users. Firstly, I'd like to change the main plugin's class/namespace, because I'd like it to be similar ...
2
votes
2answers
1k views

How to use filter hook 'post_updated_messages' in coherence with action hook 'save_post'

I am trying to send out e-mail, SMS and IM notifications to group members of this WordPress website, whenever a WordPress page in their user group has been published/updated. I figured using the ...
2
votes
2answers
3k views

How to add option box in “Edit Post” plugin API?

This might be kind of simple, but I couldn't find a way to do so in the WP docs. My plugin currently uses custom fields for things I could just have radio buttons/check boxes for each post. How do I ...
1
vote
3answers
1k views

Creating a theme option page?

I have a template page in Wordpress that I want the Admin to be able to change the text on that page. I'd love to learn how to make a plugin (I know how to make a plugin so that it shows up in WP, ...
6
votes
2answers
2k views

How to provide translations for a WordPress TinyMCE plugin?

I know that I can get my translations into JavaScript doing: $MyTranslations = array( 'translation1' => __("Some String 1", "MyTranslations"), 'translation2' => __("Some ...
6
votes
1answer
3k views

Using a plugin class inside a template

I am writing a plugin to send an invitation to a friend which opens up a form when a link is clicked. I encapsulated all the functions in class by following the code given in the Report Broken Video ...
5
votes
1answer
467 views

Do plugin files have to follow a specific convention to be “picked up” by WordPress?

I developed a plugin using the normal convention of naming the main plugin file after the plugin folder (i.e. prefix-someplugin for the folder and prefix-someplugin.php for the file). However, I saw ...
4
votes
1answer
385 views

Writing a plugin that notify my friends of new post that mentions(@) them

For example, I write a new post with content "Today I'm happy, because I finally met the girl that @David told me about bla blah..." Once the post is published, there should be an email notification ...
2
votes
2answers
173 views

Prevent plugin from deleting important directories

I want to allow users to upload custom files to specific plugin directory. The problem is, obviously, that WP removes everything upon plugin version update. I think that the upgrader_pre_install and ...
2
votes
3answers
639 views

How can I change the frequency of a scheduled event?

I have declared a scheduled event in a plugin like this : function shedule_email_alerts() { if ( !wp_next_scheduled( 'send_email_alerts_hook' ) ) { wp_schedule_event(time(), 'hourly', ...
1
vote
1answer
3k views

Using the 'draft_to_publish' hook (post status transition)

I am trying to use the draft_to_publish hook (http://codex.wordpress.org/Post_Status_Transitions) to run a function when a post that is a draft becomes published. This hook does not appear to be ...
1
vote
1answer
783 views

Script to remove all inactive widgets?

I've been working with widgets a lot lately and have amassed a ton of widgets in the inactive widgets collection. Can someone share a script or plugin that will remove all inactive widgets from the ...
1
vote
3answers
896 views

stray <p> elements

I coded a wordpress shortcode for columns that basically inserts html via a shortcode. Problem is that wpautop adds stray p elements that renders the code invalid. To test put this into your ...
1
vote
2answers
2k views

Conditional add_filter?

I need to apply an add_filter from my functions.php but only if the user has opened media-upload.php from my custom function. Is it possible to send a variable when opening media-upload.php that I ...
0
votes
1answer
2k views

Different registration form for different roles

I have customised the worpress registration page by adding new fields using the Cimy User Extra Fields plugin so my site is now fine for allowing users to register as contributors. I now want to ...
-1
votes
2answers
2k views

Integrating WordPress Content into a jQuery Slider

I have a pretty basic 'featured-list - image slider' implemented above my content in my custom WordPress theme. How do I integrate WordPress content into the slider so that the slide content is pulled ...
6
votes
3answers
7k views

Getting Path To Uploaded Attachment Image After Upload

After you have uploaded an attachment in Wordpress using the media upload screen, is there a hook or filter I can run after the image has been uploaded where I can get the path to the uploaded image ...
4
votes
4answers
376 views

Where is it better to start learning how to develop for Wordpress?

I have already read this question and answer to it ( Where do I start from ). So I have slightly different question. If I basicaly have no knowledge of how the WordPress code is structured and I have ...
3
votes
1answer
276 views

Using wp_cron with custom time interval and the register activation hook

Scenario 1: fails Adding a cron task wp_schedule_event with a custom interval on plugin activation using register_activation_hook outside the class definition fails to work because the custom ...
3
votes
3answers
2k views

Check for featured image in WP_Query

Is there a way to filter posts by featured image when initialising a WP_Query object? Example $my_query = WP_Query(array("has_thumbnail"=>true)); or, more ideally $my_query = ...
2
votes
1answer
2k views

Using wp_filesystem in Plugins

I wrote a plugin (https://github.com/bassjobsen/custom-bootstrap-editor) this plugin writes a stylesheet to wp-content/uploads/cbe. I will use something like the code below to do this: $upload_dir = ...
2
votes
2answers
1k 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' => '', ), ...
2
votes
1answer
4k views

Creating a custom public user page

I'd like to develop a plugin that allows me to have custom user pages. I really like the way the author archive template handles the URL: /author/username. I don't want to rewrite the author_base as ...
2
votes
1answer
4k views

Fatal error: Call to undefined function wp_mail()

I am using a plugin wordpress-simple-paypal-shopping-cart for my cart requirement. I am trying to send an email through this plugin when some payment is made by using IPN. My code : $invoiceProducts ...
1
vote
1answer
62 views

Use register_taxonomy() in register_activation_hook()

I would like to use register_taxonomy() to define a hierarchy of geographical terms. It seems that the natural place to place it would be in a function called by register_activation_hook() seeing how ...
1
vote
1answer
88 views

Deletion of shared options using uninstall.php

I'm using uninstall.php for my plugin to delete all the traces my plugin did to a site on uninstall (delete). I did it in a good way, but even after the deletion there are some fields in the options ...
1
vote
6answers
263 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 ...
1
vote
1answer
6k views

What is the difference between $post_id and get_the_ID()?

What is the difference between $post_id and get_the_ID()? I could not find any documentation on $post_id.
1
vote
1answer
2k views

Save selected item from dropdown menu in a meta box as a metadata value for a custom post type

I have been beating my brains on this one for days now and my Google-fu is failing me. I have created a custom meta box with a dropdown menu that lists all of the terms from a custom taxonomy. What I ...
1
vote
1answer
104 views

Including file or library from other plugin

I'm creating a plugin I would like to use from other different plugins. This plugin declares classes and functions. So, I am thinking about the best way to include, from one plugin, a php file present ...
1
vote
1answer
118 views

How to prevent specific plugin files or subfolders from appearing under “plugin files” listing

I have a folder inside my plugin that's used to store cached data for the application. There's no need for the user to edit these files so I'd like to remove this folder's files from appearing in the ...
1
vote
1answer
687 views

Replacing WordPress menu functionality with a plugin

I asked this earlier on StackOverflow.com before realizing there was a StackExchange specifically for WordPress. Here is the link to the old question (for moderator deletion): ...
1
vote
2answers
661 views

Install widget on plugin activation

Anyone know any resources to help me install my widget when my plugin is activated?
1
vote
1answer
242 views

Can I add pages to my custom menu via script?

My theme has a custom menu assignment... function my_register_my_menus() { register_nav_menus( array('header-menu' => __( 'Custom Header Menu' ) ) ); } ...and I'm creating an "installer" ...
1
vote
1answer
3k views

Current class on admin menu using add_submenu_page()

I am working on creating an administration menu within WordPress for a plugin. I have successfully registered the menu using add_menu_page() and it shows in the sidebar as expected. I have also added ...
0
votes
1answer
163 views

Shortcode display outside the div

I have created a shortcode that retrives and displays a form.The content of the attribute in HTML. function check_my_login( $atts) { return '<form action="" name="" method="post" ...
0
votes
1answer
75 views

Pass A Value From Outside To A Plugin Variable

Is there a way to pass a custom variable value from outside like from functions.php to a plugin's variable? Lets say that I have the following function defined in a plugin. function plugin_funct(){ ...
0
votes
2answers
224 views

Can a standalone app be made to work as a Wordpress plugin?

I just developed a tool for web site owners. This works as a standalone app with its own user and routes system and other custom elements. Now it seems Wordpress is getting more and more popular and ...
0
votes
1answer
223 views

Checking for existence of a page by title?

I'm currently working on a plugin, and I essentially want to check if a certain page has been created. Essentially, I want to do something like this: if (file_exists($file)) { $exists = ...
0
votes
2answers
361 views

I am using multi image metabox plugin but I did get how to display the images in templete?

please help me... here is plugin url http://wordpress.org/plugins/multi-image-metabox/ I am using this plugin but after uploading images. I need to get those images on template... code to display ...
0
votes
1answer
2k views

How to create custom home page via plugin?

I want to code a plug-in that creates new custom home page. Note that I have never coded any plug-in before. 1) After activation of plug-in user needs to go to the options of the plug-in and set up ...
0
votes
1answer
346 views

Prevent multiple counts by same user - WP PostViews plugin

I am using WP Post Views plugin to display the post number of views. To do so, I use: <?php if(function_exists('the_views')) { the_views(); } ?> The problem is: The plugin increments the ...
0
votes
1answer
196 views

Multiple textdomains

I have a bunch of plugins. Obviously, they all have their own unique textdomains for internationalization (i18n). I also have a bunch of files that I include in all my plugins - I throw them all in a ...
0
votes
1answer
130 views

Determine which template-{slug}.php is being loaded

I am trying to make a personal plugin that does specific things based on what is loaded. In this example, in my action method I want to perform one function if the currently loading page is using the ...