functions - Read For Learn

Ajax call does not work for this custom code

Instead of doing: data: {action: ‘performers’, catname: catname} Try: data: ‘action=performers&catname=”+catname; You may also want to define “catname” globally, i am not sure if scope is an issue with your ajax handler but this could be why it is not being set. As an example try to alert catname within the ajax handler above cache=false; … Read more

Add custom fields after post/page title

There’s the get_post_meta() function to retrieve those data. So basically, you’d write a function in your functions.php file (or in a custom plugin – take “Hello Dolly” as example) and hook it. <?php /* Plugin Name: (#66495) »kaiser« Headway Title Button */ function wpse66495_headway_title_button() { return printf( ‘<div class=”title-btn”><a href=”https://wordpress.stackexchange.com/questions/66495/%s” alt=”https://wordpress.stackexchange.com/questions/66495/%s”><img src=”%s /></a></div>’ ,get_post_meta( get_the_ID(), … Read more

update_post_meta after form is submited

The following is a crude example, it can be improved to ensure you’re dealing with integers etc and also shortened overall for brevity but this should get you started. add_filter(‘frm_after_create_entry’, ‘after_entry_created’, 30, 2); function after_entry_created($entry_id, $form_id){ global $post; if($form_id == 7){ //change 7 to the ID of your form $previous_value = get_post_meta($post_id, $key, true); if($previous_value … Read more

does acf_save_post cause endless loop?

add_post_meta doesn’t call the same hook again but there are some other functions such as wp_update_post which call the hook again. In case it is going into infinite loop you’ll have to call remove_action inside the function to not make it recursive

function to return comma separated list of meta values

$gear = get_post_meta( $post_id, ‘gear’, true ); … will return the last value only, because you told it do that with the last parameter. Drop it, and you will get an array of all values: $gear = get_post_meta( $post_id, ‘gear’ ); Then print it with: print join( $gear, ‘, ‘ ); And as Chip has … Read more

Echo a div to header.php from functions.php

The wp_head() template tag is intended to fire in the HTML document head, rather than the page header, and is used to output script and stylesheet links and tags, and other similar things in the HTML document head. It should appear immediately before the closing HTML </head> tag, like so: <?php wp_head(); ?> </head> If … Read more

How to shorten code with function?

You can make your own function to minimize the characters typed for each time you want to repeat the call to get_posts: in functions.php (perhaps): function print_piwa($postcount=2, $cat_id=81) { ?> <div class=”wiadPodtyt”> <ul> <?php $piwa = get_posts(array( ‘posts_per_page’ => $postcount, ‘cat’ => $cat_id, ‘post__not_in’ => $news_ids, ‘offset’ => 1 )); foreach ($piwa as $post) { … Read more