There’s some confusion here, because not all of these are validation, there are 2 others that are necessary to understand what’s appropriate: validation sanitisation escaping Sanitisation Sanitisation makes things clean and well formed This cleans up the data, e.g. trimming trailing spaces, removing letters in a number field, making an all lowercase field all lowercase, … Read more
There is my solution – tehere is my solution of this problem: Preserving tabs and line breaks in <pre><code> when switching from HTML to Visual Editor
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
You’re completely overwriting the content instead of appending it. You need to do something like $content .= ‘Test text here’; instead.
wp_title filter is deprecated since WordPress 4.4 (see here). You can use document_title_parts instead function custom_title($title_parts) { $title_parts[‘title’] = “Page Title”; return $title_parts; } add_filter( ‘document_title_parts’, ‘custom_title’ ); In custom_title filter, $title_parts contains keys ‘title’, ‘page’ (the pagination, if any), ‘tagline’ (the slogan you specified, only on homepage) and ‘site’. Set “title” the way you … Read more
You could use the query to filter the content as you intended by using the ‘meta_query’ with filtering options, and for the order part, just add/modify the following parameters: ‘orderby’ => ‘meta_value’ ‘meta_key’ => ‘location_level1_value’ ‘order’ => ‘ASC’ $wp_query = new WP_Query( array ( ‘post_type’ => ‘listing’, ‘posts_per_page’ => ‘9’, ‘post_status’ => ‘publish’, ‘meta_query’ => … Read more
UPDATE 2018-06-28 While the code below mostly works fine, here is a rewrite of the code for WP >=4.6.0 (using PHP 7): function add_course_section_filter( $which ) { // create sprintf templates for <select> and <option>s $st=”<select name=”course_section_%s” style=”float:none;”><option value=””>%s</option>%s</select>”; $ot=”<option value=”%s” %s>Section %s</option>”; // determine which filter button was clicked, if any and set section … Read more
You have at least two options: Globalize the desired variable, and then reference it inside the callback Wrap the score calculation logic with a function, then reference it inside the callback Globalize the Variable <?php global $score; $score = 42; //Some crazy calculation I don’t want to repeat. function add_score_to_title($title) { global $score; return ‘Quiz … Read more
Less than an answer, but just a list of things straight from my experience with it – maybe you’ve overlooked something. Debugging the request & its results Without diggin’ too deep into the update process, but the WP HTTP API uses the WP_HTTP class. It also offers a nice thing: A debug hook. do_action( ‘http_api_debug’, … Read more
Ok so I think I figured it out… Both of these work for the most part as you’d expect by sending http / php headers to the browser. wp_headers is actually a filter inside the send_headers() functions.You can use this to modify the headers before they’re sent to the browser with some exception. wp_headers won’t … Read more