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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5
votes
1answer
394 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 ...
5
votes
1answer
522 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 ...
2
votes
3answers
704 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
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 ...
1
vote
1answer
823 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
1answer
722 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): http://stackoverflow....
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
3answers
1k 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 ...
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
2answers
120 views

Avoiding plugin name collisions with WP updater

I have a client who has a WordPress site that uses a custom plugin written for them by another developer. Recently, they ran the WordPress updater and one of the updates clobbered that custom plugin ...
4
votes
4answers
377 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
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 = WP_Query(array("...
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
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
174 views

How to create collections that are edited in admin?

I'm not sure what this feature is called, but I've seen examples of this before. Lets say, on my site I want additional collections of things (besides blog posts) that have their own sections in the ...
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 ...
1
vote
6answers
279 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 404s....
1
vote
1answer
106 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
1answer
3k views

How to create a dynamic page based on form data with a plugin?

I have a form that users fill out. When they finish, they are redirected to a 3rd party site to set up payment options. After completing the payment process, they are sent back to my site with a ...
1
vote
1answer
121 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
1k views

fatal error get_page_permastruct()

I'm getting the following error Fatal error: Call to a member function get_page_permastruct() /link-template.php on line 276 when I invoke the in class constructor the wp_insert_post($new_post);. ...
1
vote
1answer
42 views

WordPress widget / plugin…fields not appearing in my widget

Trying to create my first plugin. A simple one. It's doing mainly what I want to do except the widget itself in Appearance-->Widgets doesn't display my fields. Wondering if anyone could point me in ...
1
vote
1answer
133 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
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
243 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
81 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
2answers
688 views

Install widget on plugin activation

Anyone know any resources to help me install my widget when my plugin is activated?
0
votes
1answer
135 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 ...
0
votes
1answer
381 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
206 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
583 views

Can Not Redirect from Plugin-Registered Admin Page

I am doing the following in my plugin: Register a custom admin page and in the callback function (the last parameter of add_submenu_page) Redirect to another page However, when I open the custom ...
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
2k views

How to change post status in hook?

I have similar problem as described in How to trap "Publish" button to check for meta box validation? Answer there is to hook into save_post and change post type. How can I do it? I try to ...
0
votes
1answer
263 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 = true;...
0
votes
1answer
236 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" ...
28
votes
7answers
2k views

What Plugins Demonstrate Great WP Plugin Development?

I'm going to be tackling my first plugin soon and I'm looking for plugins which you feel are of very high quality, under the hood. Stuff I can use as an example while I design the framework for my ...
14
votes
2answers
742 views

In Which Contexts are Plugins Responsible for Data Validation/Sanitization?

I want to make sure all of the data in my plugins/themes is handled securely before entering the database and before being output to the browser. My problem is that there are situations where the API ...
18
votes
2answers
39k views

How to add a shortcode button to the TinyMCE editor?

How to make any plugin icon in wordpress post? The code I want to insert in plugin code and will appear in post bar [wp-admin/post.php]. Like this image: Output: If I click the icon it ...
16
votes
4answers
646 views

Automatically determine minimum WordPress version required for a plugin?

When developing a plugin, is there a way to automatically determine the minimum version of WordPress that's required to run it? I want to make sure that the Requires header is accurate, but manually ...
8
votes
3answers
300 views

Getting a peer review for my new plugin?

What is the best way to get an experienced WordPress developer take a look at my plugin and give constructive criticisms? I have written code to solve some of my questions on this site, and I think ...
14
votes
2answers
32k views

How to get the path to the current theme?

This code is used to get the directory of the current plugin: plugin_dir_url( __FILE__ ). What should I use to get the directory of the current theme?
9
votes
1answer
3k views

Adding Widget form fields dynamically

I am trying to add form field to a WordPress widget dynamically. So if the user want to add another date to an event they can click a button to get more fields. The question is: How do save newly ...
7
votes
2answers
11k views

Send user activation email when programmatically creating user

I wondered if someone here might be able to help. Basically, I've created a custom registration form that when validated, inserts a user to the user table. function _new_user($data) { // ...
9
votes
1answer
3k views

How can I configure Docker for developing and deploying a custom theme?

I am getting started with Docker and I'm still new to professional WordPress development practices. I would like to set up a Docker development environment (on my Mac) so that I can do custom ...
9
votes
4answers
10k views

What is difference between get_bloginfo('url') and get_site_url()?

I am developing a plugin. I want to know difference between get_bloginfo('url'); and get_site_url(); I got same output, then what's the difference?
8
votes
4answers
3k views

dealing with large HTML output via plugin code

I recently wrote my first WP plugin that adds a shortcode for embedding a custom jquery image gallery into posts. It's primarily just dumps a good chunk of HTML into the post, along with javascript ...
5
votes
3answers
3k views

Changing Plugin Load Order

I'm writing a plugin, bar, which is dependent on another plugin, foo, being activated, and I need the functions from foo to be available when bar loads. Normally plugins are loaded in alphabetical ...
3
votes
3answers
4k views

Problems with autoloading classes via sp_autoload_register / maybe interfering WP-specific autoloader

I'm working on a plugin in which I do the following for autoloading classes: function TFSLAutoload($class) { $classfile = dirname(__FILE__).'/includes/'.strtolower($class).'.php'; include $...
1
vote
2answers
5k views

Post from front-end with post types, categories and taxonomies

I am now developing a wordpress site that will be something like a directory. People will be able to submit walkthroughs, advanced reviews, as well as cheat codes for games. We were going to make a ...
16
votes
3answers
2k views

How many times will this code run? (or, how rich is grandma?)

Hypothetical example but real world applicability (for someone learning, like me). Given this code: <?php function send_money_to_grandma() { internetofThings("send grandma","$1"); } ...