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A collection of (mostly) WordPress-related snippets and references I’ve found useful and worth keeping where I can find them. Feel free to use what you like, and point me to some better snippets or references.

Eliminate Caching on Specific Page Templates and Post Types»

Put in your theme’s header.php file: <?php if (is_page_template('page_eventslist.php')) { //conditional, if desired header('Cache-Control: no-cache, no-store, must-revalidate'); header('Pragma: no-cache'); header('Expires: 0'); } ?>
CPT, WP/CP | Type: PHP

Embed Responsive YouTube Videos»

First, the CSS: .youtube-video { aspect-ratio: 16 / 9; width: 100%; } Then add the class to the iframe embed code: <iframe class="youtube-video" src="https://www.youtube.com/embed/xxxxxx" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay;…
CSS, Responsive, Video | Type: CSS

Filter Custom Post Type by Taxonomy»

UPDATE: Moving to PHP8 from PHP7.4, there was a problem with the format of the original filter form throwing an error. I have not tested this code specifically, but I…
PHP, WP Query, WP/CP | Type: PHP

Fix ‘Invalid argument supplied for foreach()’ error»

Specifically, this code applies to  gravity-forms-custom-post-types/gfcptaddonbase.php, but it could apply to other instances of the error. Original code: foreach( $form_or_field['fields'] as $field ) { if( $this-&gt;has_tax_enhanced_ui( $field ) ) {…

Fix to Top Onscroll»

Positions element at top on scrolling using jQuery scrollTop.
Javascript, jQuery | Type: Javascript

Fixing Fixed Header Problems»

html body { position:static !important; } /*fixes many(!) issues caused by fixed header*/ .anchor::before { display: block; content: " "; margin-top: -75px; height: 75px; visibility: hidden; pointer-events: none; } /*offsets…
CSS | Type: CSS

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