AJAX Post Search and Filter

Oleh Nirav Kaneriya

Description

AJAX Post Search and Filter allows users to filter posts in real-time using taxonomy terms like categories, tags, or custom taxonomies. Add the filter anywhere using a simple shortcode.

Shortcode

Use this shortcode:

[post_filter post="post" taxonomy="category, test" logic="saprate" load_type="button" per_page="3"]<h3>License</h3>

This plugin is free software, released under the GPLv2 or later license.

1.1

Added nonce verification and user permission checks for secure AJAX requests.
Improved AJAX response handling and error fallback in JavaScript.
Optimized tax query logic with support for “AND”/”OR” filters.
Enhanced code structure for better maintainability.

1.2

Fully sanitized all AJAX input data to comply with WordPress security standards.
Added missing version parameters to enqueued CSS and JS to prevent browser caching issues.
Refactored input handling logic to pass PHPCS validation.
Minor code improvements for performance and readability.

Installation

Upload the plugin to /wp-content/plugins/
Activate it from the “Plugins” menu in WordPress
Add the shortcode to any page/post to display the filter

FAQ

Can I filter custom post types?: Yes! Just set the post attribute in the shortcode to your custom post type slug.
Does it support multiple taxonomies?: Yes. You can list multiple taxonomies like category, post_tag.