api - Read For Learn

Query WP REST API v2 by multiple meta keys

Adding a custom endpoint is pretty straightforward. I also modified the url to look more like http://example.com/wp-json/namespace/v2/posts?filter[meta_value][month]=12&filter[meta_value][year]=2015 function wp_json_namespace_v2__init() { // create json-api endpoint add_action(‘rest_api_init’, function () { // http://example.com/wp-json/namespace/v2/posts?filter[meta_value][month]=12&filter[meta_value][year]=2015 register_rest_route(‘namespace/v2’, ‘/posts’, array ( ‘methods’ => ‘GET’, ‘callback’ => ‘wp_json_namespace_v2__posts’, ‘permission_callback’ => function (WP_REST_Request $request) { return true; } )); }); // handle the request … Read more

Which of my blog and personal data is being transfered when WordPress automatically checks for updates?

This does not answer the question in specific, but those are some resources regarding the question (feel free to add stuff). Blog Articles and Discussions Who is WordPress talking to? (Interconnect IT, 07 March 2011) What Data Does WordPress Send Back to the Mothership (Lynne Pope; 14 Dec 2009) Is WordPress Spyware? (Jeff Chandler; 10 … Read more

WordPress API Menu/Submenu Order

Here’s an example; First to figure out the order of the sub menu items based upon its array key you can do a var_dump on the $submenu global variable which will output the following; (I’m using the Posts menu and sub menu as an example) //shortened for brevity…. [“edit.php”]=> array(6) { [5]=> array(3) { [0]=> … Read more

How to use “Add link” pop up for a WordPress widget

I tried for a bit and could not get this to work perfectly, but it’s close, it’s hard to extend with the <form> for the popup styles being hardcoded, thought possible with more work. To get started you can: Enqueue the link popup javascript and styles, the main .js file is wp-includes/wplink.js. Depending on where … Read more

Does WordPress have a “Form API”?

No, but it should 😉 There are several custom field class’s (backend). wpAlchemy : https://github.com/farinspace/wpalchemy Meta Box Script: https://github.com/rilwis/meta-box My-Meta-Box: https://github.com/bainternet/My-Meta-Box meta-box-class: https://github.com/corycrowley/meta-box-class Meta Boxes Class: https://github.com/Bakke/Wordpress-Custom-Meta-Boxes-Class For front-end forms, you probably best off with a plugin in Eugene Manuilov’s link.

Create API for single sign-on with 3rd party site

Cross-site Scripting Issues You cannot transfer WP auth cookies between domains. You also don’t want to store plaintext passwords for logging into another WP installation programmatically. So, you’ll have to have users log into WordPress, and then access their login status via an API endpoint from the third-party site. This lets WordPress handle all the … Read more

Access WordPress API Outside of WordPress (command-line PHP)

WordPress expects the $_SERVER variables to be setup as if it were a normal web request. Also, I would suggest loading wp-load.php instead of wp-blog-header.php since you probably don’t need the WP class or the template loader to run. Here is how I normally start any scripts I need to interact with WP from command … Read more

Convert output of nav_menu items into a tree-like multidimensional array

The problem of building a tree from a flat array has been solved here with this, slightly modified, recursive solution: /** * Modification of “Build a tree from a flat array in PHP” * * Authors: @DSkinner, @ImmortalFirefly and @SteveEdson * * @link https://stackoverflow.com/a/28429487/2078474 */ function buildTree( array &$elements, $parentId = 0 ) { $branch … Read more

I Want to Get A Plugin Version Number Dynamically

Here is an answer with some code that will do what you want it to do: Is there a way for a plug-in to get it’s own version number?

New WP_Customize API – how does it work under the hood?

There’s a few bits here that apply, but the short of it is this code in customize-preview.js: this.body.on( ‘click.preview’, ‘a’, function( event ) { event.preventDefault(); self.send( ‘scroll’, 0 ); self.send( ‘url’, $(this).prop(‘href’) ); }); The event.preventDefault prevents the links from actually working. The following code then sends a message back upwards telling it to a) … Read more

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