PHP 8.x Migration for WordPress
Complete reference for migrating WordPress themes, plugins, and custom code from PHP 7.4 to PHP 8.0, 8.1, 8.2, and 8.3. Covers new features, breaking changes, backward compatibility, and the most common migration patterns.
1. PHP 8.0 Features for WordPress
Named Arguments
Use with caution in WordPress hook callbacks. WordPress core functions do not guarantee parameter name stability across versions.
// BEFORE (PHP 7.4)
wp_insert_post( arr
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