Forms in WordPress Themes — a practical guide to WordPress theme forms with clear examples you can reuse in real projects.
WordPress Theme Development Series (59/96). Prefer one article? Read the complete WordPress theme development tutorial.
Short description
For complex forms, prefer plugins (or blocks). For simple theme forms, secure POST handling is mandatory.
Form nonce field
<?php wp_nonce_field('acme_contact', 'acme_contact_nonce'); ?>