The right way is to post the data back to the WordPress admin ajax url then in your PHP function access them using the $_POST variables. Example jQuery function that passed a category id back to wordpress: function cat_edit_get() { jQuery( “#loading-animation”).show(); var catID = jQuery(“#cat :selected”).val(); var text = jQuery(“#cat :selected”).text(); jQuery(‘#replace’).html(text); jQuery.ajax({ type: … Read more
Yes, it is always better to keep the result of a function call in a private variable. But the reason is not performance. Reliability In your example, you are calling a function that internally accesses a global variable ($post). A global variable can be overwritten any time, so you might end up with two different … Read more
PHP interprets those arrays differently. In the first example you’re asking WP_Query to get postsby 3 term slugs and in the second example you’re assigning the array a value of 1 string. If we were to print the two arrays it would look like this: Your Example 1: ‘terms’ => array( [0] => ‘The A … Read more
Maybe you’re looking for the post__in parameter in WP_Query. $query = new WP_Query(array( ‘post__in’ => array(23,18,2,199,6,8) ); And then: while ( $query->have_posts() ) { $query->the_post(); /* post loop */ } Take a look at the docs. =D For public queries: post__in is not public queryable by default, so you can just validate and copy $_GET[‘post__in’] … Read more
The basic mistake is, that every data is available at the point where you write your code. That isn’t the case and hooks are there to provide access to the core code during different states of the core loading procedure graph. In short and very simplified things run like this: # core loads // …more … Read more
The global $post_type is usually from the public query variable of the main query $wp_query, but get_post_type() is the post type of the current $post object, within the loop. So for e.g. secondary loops this can be different. The global $post_type might not always be set, as the default post type for WP_Query is the … Read more
I’m not certain, but if you’re talking about $_post as seen here: http://codex.wordpress.org/Function_Reference/in_category It’s referring to a post ID so they’ve probably added the underscore to avoid confusion. The $post variable is a post object with all the details of the post. However, $_POST is a global PHP variable containing all the values sent from … Read more
There are 4 valid ways of defining a string, see this question for more details. However in your case there is a special exception provided by PHP. Most users are unaware of it however, and it does leave ambiguities, as it’s no longer possible to tell a string literal, a constant, or a define apart, … Read more
The Variables in Post Snippets (WordPress Plugin) is a comma seperated value. When you use the snippet-insert button in the post/page editor, you can set those. An example of this is given on the homepage of the plugin, there is even a screenshot demonstrating that. Please read the documentation first. Those Post Snippet Variables are … Read more
What you need to do is look at your $page and $pages variables and do the same thing with your $desc variable (and any other variable that you want to access outside of the function). You will need a global $descs which will be an array where you will place in each of the $desc … Read more