Professional Wordpress Plugin Development

Informationen zum Autor About the authors Brad Williams is CEO and cofounder of WebDevStudios, a WordPress design and development firm. He is coauthor of Professional WordPress Design and Development. Justin Tadlock is a plugin and theme developer with over a decade of professional experience. He currently writes for WP Tavern. John James Jacoby has authored dozens of popular WordPress plugins and leads the development of bbPress and BuddyPress. He has contributed to every major WordPress version since 2008. Klappentext Extend WordPress with plugins using this advanced WordPress development book, updated for the current versionThis significantly updated edition of Professional WordPress Plugin Development addresses modern plugin development for WordPress, the highly popular content management system (CMS). If you're using WordPress to create and manage websites, WordPress plugins are the software that can extend or enhance CMS functionality. This book offers guidance on writing plugins for WordPress sites to share or sell to other users.The second edition of Professional WordPress Plugin Development covers the building of advanced plugin development scenarios. It discusses the plugin framework and coding standards as well as dashboards, settings, menus, and related application programming interfaces (APIs). Additional topics include security, performance, data validation, and SQL statements.* Learn about the power of hooks in WordPress* Discover how JavaScript and Ajax will work in your site* Understand key technologies: Block Editor/Gutenberg, JS/React, PHP, and the REST API* Create and use custom post types and taxonomies.* Creating custom dashboard menus and plugin settings* Work with users and user data* Schedule tasks and utilizing Cron* Performance and security considerationsWritten by experienced plugin developers, Professional WordPress Plugin Development also helps you internationalize and localize your WordPress website. Find out about debugging systems and optimizing your site for speed. As WordPress use continues to increase, you can elevate your professional knowledge of how to extend WordPress through plugins. Zusammenfassung Extend WordPress with plugins using this advanced WordPress development book! updated for the current versionThis significantly updated edition of Professional WordPress Plugin Development addresses modern plugin development for WordPress! the highly popular content management system (CMS). If you're using WordPress to create and manage websites! WordPress plugins are the software that can extend or enhance CMS functionality. This book offers guidance on writing plugins for WordPress sites to share or sell to other users.The second edition of Professional WordPress Plugin Development covers the building of advanced plugin development scenarios. It discusses the plugin framework and coding standards as well as dashboards! settings! menus! and related application programming interfaces (APIs). Additional topics include security! performance! data validation! and SQL statements.* Learn about the power of hooks in WordPress* Discover how JavaScript and Ajax will work in your site* Understand key technologies: Block Editor/Gutenberg! JS/React! PHP! and the REST API* Create and use custom post types and taxonomies.* Creating custom dashboard menus and plugin settings* Work with users and user data* Schedule tasks and utilizing Cron* Performance and security considerationsWritten by experienced plugin developers! Professional WordPress Plugin Development also helps you internationalize and localize your WordPress website. Find out about debugging systems and optimizing your site for speed. As WordPress use continues to increase! you can elevate your professional knowledge of how to extend WordPress through plugins. Inhaltsverzeichnis Introduction xxxi ...

List of contents

Introduction xxxi
 
Chapter 1: An Introduction to Plugins 1
 
What is a Plugin? 1
 
How Plugins Interact with WordPress 2
 
When are Plugins Loaded? 3
 
Available Plugins 4
 
Official Plugin Directory 4
 
Popular Plugin Examples 4
 
Popular Plugin Tags 5
 
Advantages of Plugins 5
 
Not Modifying Core 5
 
Why Reinvent the Wheel? 5
 
Separating Plugins and Themes 6
 
Easy Updates 7
 
Easier to Share and Reuse 7
 
Plugin Sandbox 7
 
Plugin Community 7
 
Installing and Managing Plugins 8
 
Installing a Plugin 8
 
Managing Plugins 9
 
Editing Plugins 9
 
Plugin Directories 9
 
Types of Plugins 10
 
Summary 11
 
Chapter 2: Plugin Framework 13
 
Requirements for Plugins 13
 
Naming Your Plugin 14
 
Using a Folder 14
 
Best Practices 14
 
Namespace Everything 14
 
File Organization 15
 
Folder Structure 16
 
Plugin Header 17
 
Creating the Header 17
 
Plugin License 18
 
Determining Paths 19
 
Plugin Paths 19
 
Local Paths 19
 
URL Paths 20
 
Activate/Deactivate Functions 22
 
Plugin Activation Function 22
 
Plugin Deactivation Function 23
 
Deactivate is Not Uninstall 23
 
Uninstall Methods 24
 
Why Uninstall is Necessary 24
 
Uninstall.php 24
 
Uninstall Hook 25
 
Coding Standards 25
 
Document Your Code 26
 
Naming Variables and Functions 27
 
Naming Classes and Methods 27
 
Naming Files 28
 
Single and Double Quotes 28
 
Indentation 28
 
Brace Style 29
 
Space Usage 29
 
Shorthand PHP 30
 
SQL Statements 30
 
Summary 30
 
Chapter 3: Dashboard And Settings 31
 
Adding Menus and Submenus 31
 
Creating a Top-Level Menu 32
 
Adding a Submenu 33
 
Adding a Menu Item to an Existing Menu 34
 
Plugin Settings 36
 
The Options API 36
 
Saving Options 36
 
Saving an Array of Options 37
 
Updating Options 37
 
Retrieving Options 38
 
Loading an Array of Options 39
 
Deleting Options 40
 
The Autoload Parameter 40
 
Segregating Plugin Options 41
 
Toggling the Autoload Parameter 42
 
The Settings API 42
 
Benefits of the Settings API 42
 
Settings API Functions 43
 
Creating the Plugin Administration Page 43
 
Registering New Settings 44
 
Defining Sections and Settings 44
 
Validating User Input 46
 
Rendering the Form 47
 
All Done! 48
 
Wrapping It Up: A Complete Plugin Management Page 48
 
Improving Feedback on Validation Errors 51
 
Expanding with Additional Field Types 52
 
Adding Fields to an Existing Page 59
 
How It Works 59
 
Adding a Section to an Existing Page 59
 
Adding Only Fields 60
 
WordPress' Sections and Setting Fields 61
 
User Interface Concerns 62
 
Removing Settings 62
 
Keeping It Consistent 63
 
Using the WordPress UI 64
 
Headings 64
 
Dashicons 64
 
Messages 65
 
Buttons 66
 
Form Fields 67
 
Tables 68
 
Pagination 69
 
Summary 70
 
Chapter 4: Security And Performance 71
 
Security Overview 72
 
What Securing Your Plugin is 72
 
What Securing Your Plugin is Not

Product details

• Authors: John James Jacoby, Justi Tadlock, Justin Tadlock, Tadlock Justin, B Williams, Bra Williams, Brad Williams, Brad Tadlock Williams, Williams Brad
• Publisher: Wiley, John and Sons Ltd
• Languages: English
• Product format: Paperback / Softback
• Released: 31.05.2020
• EAN: 9781119666943
• ISBN: 978-1-119-66694-3
• No. of pages: 480
• Subjects: Natural sciences, medicine, IT, technology > IT, data processing > Data communication, networks; Informatik, wordpress, Web-Entwicklung, computer science, Web Site Development