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https://github.com/Mte90/awesome-wordpress-developer-tips

Curated list that contain code, snippets or examples without libraries or external packages for developers.
https://github.com/Mte90/awesome-wordpress-developer-tips

List: awesome-wordpress-developer-tips

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Curated list that contain code, snippets or examples without libraries or external packages for developers.

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# Awesome WordPress Developer Tips

> Curated list that contain very awesome and ready code, snippets or examples without libraries or external packages made it for developers.



## Why

This list is born from a real workflow in my development in WordPress, sometimes you don't need or not exist a library that do a specific stuff very well with a real case to study.  

When i need something like that I search for other plugins that do that stuff to study and replicate, better if possible. For that reason I remember many plugins what they do and I search for recreate the same UX/UI. This list infact contain reference to plugins or docs but not to tutorials.  

In this way is possible see in action, also the workaround used, and more important a case study.  

In few words this is a list for skilled WordPress developers that want a simple way to found specific code (in the mainly case how use a specific hook).  



PS: Part * is used because sometimes the code is splitted (maybe an hook declaration and a function).  

PSS: Sometimes the code can be in the wrong line because the line is changed, search in the linked page or open a ticket to fix that list.



[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)



## Table of Contents



- [Core](#core)

- [AJAX](#ajax)

- [JSON REST API official](#json-rest-api-official)

- [External plugin](#external-plugin)

- [Hacks](#hacks)

- [Tips](#tips)

- [WooCommerce](#woocommerce)

- [Other lists](#other-lists)



## Core



* Add backend/frontend fields in comments - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/public%2Fincludes%2FDT_Comment.php)

* Add Screen Option in contextual tabs - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/admin%2Fclass-datask-admin.php#L186), [Part 2](https://github.com/Mte90/DaTask/blob/master/admin%2Fclass-datask-admin.php#L54)

* Add links to Plugin in Plugin list - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/admin%2Fclass-datask-admin.php#L214), [Part 2](https://github.com/Mte90/DaTask/blob/master/admin%2Fclass-datask-admin.php#L60)

* Add links to User in User list with action - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/admin%2Fincludes%2FDT_User_Backend.php)

* Add link in menu top bar - Code from [WP Find Function](https://wordpress.org/plugins/find-function) plugin: [Part 1](https://github.com/Mte90/WP-Find-Function/blob/master/find-function.php#L46), [Part 2](https://github.com/Mte90/WP-Find-Function/blob/master/find-function.php#L92)

* Add custom post type in search box - Code from [WordPress Plugin Boilerplate Powered](https://github.com/Mte90/WordPress-Plugin-Boilerplate-Powered): [Part 1](https://github.com/WPBP/WordPress-Plugin-Boilerplate-Powered/blob/master/plugin-name/includes/PN_PostTypes.php#L22), [Part 2](https://github.com/WPBP/WordPress-Plugin-Boilerplate-Powered/blob/master/plugin-name/includes/PN_PostTypes.php#L35)

* Add custom post type in Activity Dashboard widget - Code from [WordPress Plugin Boilerplate Powered](https://github.com/Mte90/WordPress-Plugin-Boilerplate-Powered): [Part 1](https://github.com/WPBP/WordPress-Plugin-Boilerplate-Powered/blob/master/plugin-name/admin/includes/PN_Extras_Admin.php#L112), [Part 2](https://github.com/WPBP/WordPress-Plugin-Boilerplate-Powered/blob/master/plugin-name/admin/includes/PN_Extras_Admin.php#L143)

* Add thumbnail in post type list in backend - Code from [Ubik-Admin](https://github.com/synapticism/ubik-admin) - [Part1](https://github.com/synapticism/ubik-admin/blob/master/ubik-admin/ubik-admin-post-list-thumbs.php)

* Detect the page in backend - Code from [AdRotate Extra Settings](https://wordpress.org/plugins/adrotate-extra-settings/) plugin: [Part 1](https://github.com/Mte90/AdRotate-Extra-Settings/blob/master/admin%2Fclass-adrotate-extra-settings-admin.php#L57)

* Sort Taxonomy by taxonomy terms - By [Scribu](http://scribu.net/): [Snippet](http://scribu.net/wordpress/sortable-taxonomy-columns.html)

* Nonce for guest user - By [Mte90](http://mte90.net/): [Snippet](https://gist.github.com/Mte90/a1b6443aabe14386fa3b)

* Transient example with external request - By [Mte90](http://mte90.net/): [Snippet](https://github.com/WPBP/WordPress-Plugin-Boilerplate-Powered/blob/master/plugin-name/admin/includes/PN_Extras.php#L162)

* Show post thumbnails in RSS Feed - By [Bobeta](https://gist.github.com/Bobeta): [Snippet](https://gist.github.com/Bobeta/8263b0d46aaf76c8b7df7d2ab20ae3f8)

* Edit Dashboard Footer Admin Text - Code from [DigitalDesigner](https://digitaldesigneronline.com): [Snippet](https://github.com/DigitalDesignerOnline/WordPress-Functions/blob/master/dashboard-footer.php)

* Edit Dashboard Howdy Text - Code from [DigitalDesigner](https://digitaldesigneronline.com): [Snippet](https://github.com/DigitalDesignerOnline/WordPress-Functions/blob/master/replace-howdy.php)

* Simple way to get a single post’s taxonomy - By [dmpinder](https://github.com/dmpinder): [Article](https://rocketsquirrel.org/@darren/wordpress/simple-way-get-single-posts-taxonomy)



## AJAX



* AJAX request for non-logged user [`wp ajax nopriv_(action)`](https://codex.wordpress.org/Plugin_API/Action_Reference/wp_ajax_nopriv_%28action%29)

* AJAX request for logged user [`wp ajax_(action)`](https://codex.wordpress.org/Plugin_API/Action_Reference/wp_ajax_%28action%29)

* Use [`wp_send_json()`](https://codex.wordpress.org/Function_Reference/wp_send_json),[`wp_send_json_success()`](https://codex.wordpress.org/Function_Reference/wp_send_json_success) and [`wp_send_json_error()`](https://codex.wordpress.org/Function_Reference/wp_send_json_error) for standard JSON request in AJAX request.



## JSON REST API official



* Add meta field on v1 and v2 in readonly - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/public%2Fincludes%2FDT_API.php)

* Extend WP Rest API v2 - Demo Plugin by [Pete Nelson](https://github.com/petenelson/extending-wp-rest-api)



## External plugin



* Support for BadgeOS trigger - Code from [DaTask](https://wordpress.org/plugins/datask/) plugin: [Part 1](https://github.com/Mte90/DaTask/blob/master/public%2Fincludes%2FDT_BadgeOS.php)

* Stop users from disabling critical plugins: [Code Snippet](https://derrick.blog/2018/06/21/securing-wordpress-plugins-with-more-plugins/) by [Derrick Tennant](https://derrick.blog/)



## Hacks



* Rename custom meta name - SQL Query by [Tom Waters](http://stackoverflow.com/users/383635/tom-walters): [Command](http://stackoverflow.com/questions/6649285/renaming-custom-fields)

* Optimizing wp_options for Speed - Article by [Pressjitsu](https://pressjitsu.com/): [Article](https://pressjitsu.com/blog/optimizing-wp-options-for-speed/)

* Life of a Front-end WordPress Request - Article by [Roots](https://roots.io/): [Article](https://roots.io/routing-wp-requests/)

* 10 WordPress Things I’ve learned working with 10up - Article by [Rachie Vee](http://rachievee.com/): [Article](http://rachievee.com/10-wordpress-things-ive-learned-working-with-10up/)

* WordPress for the adventurous: WP_Query class - Article by [Carl Alexander](https://carlalexander.ca): [Article](https://carlalexander.ca/wordpress-adventurous-wp-query-class/)

* [Practical Guide to GDPR compliance for WordPress plugin & theme developers.](https://danieliser.com/practical-guide-to-gdpr-compliance-for-wordpress-plugin-and-theme-developers/)



## Tips



* Generate an HTML table from an array - By [Mte90](http://mte90.net/): [Snippet](https://gist.github.com/Mte90/5aee3fbc1df3884d42be)

* Create a simple Sandbox Server for safe 'real-world' testing with DigitalOcean's One-Click Apps -  Article by [DigitalOcean](http://digitalocean.com) : [One Click Wordpress Install](https://www.digitalocean.com/community/tutorials/how-to-use-the-wordpress-one-click-install-on-digitalocean)

* How WordPress Knows What Page You’re On - [rmccue](https://rmccue.io/): [Article](https://journal.rmccue.io/400/how-wordpress-knows-what-page-youre-on/)



## WooCommerce



* Updating multiple WooCommerce variant product shipping classes at once with SQL - By [dmpinder](https://github.com/dmpinder): [Article](https://rocketsquirrel.org/@darren/woocommerce/updating-multiple-woocommerce-variant-product-shipping-classes-at-once-with-sql)

* [How to add GDPR support on your custom WooCommerce plugin](https://daniele.tech/2018/05/how-to-add-gdpr-support-on-your-custom-woocommerce-plugin/)



## Other lists



* WordPress Plugin Boilerplate Powered - [External useful resources](https://github.com/Mte90/WordPress-Plugin-Boilerplate-Powered/wiki/Useful-resources-or-code-examples)

* Guide to build a better custom wordpress search including custom post types - Guide by [WPMUDEV](http://wpmudev.org) : [Build your own search](https://premium.wpmudev.org/blog/build-your-own-custom-wordpress-search/)



## License



[![CC0](https://i.creativecommons.org/p/zero/1.0/88x31.png)](https://creativecommons.org/publicdomain/zero/1.0/)



To the extent possible under law, [Daniele Scasciafratte](http://mte90.net) has waived all copyright and related or neighboring rights to this work.