What is the source outline for a basic word press plugin?

Depends on the plugin you want to create really but ultimately you should follow the WordPress Plugin Handbook / Best Practices.

You’ll want to start with the WordPress Plugin Boilerplate ( tutorial ) or WordPress Plugin Boilerplate Generator ( tutorial ).

Also, a general search for wp boilerplate plugin should get you on your way.

As for the database part, you just need the structure to start with then find specific code to interact w/databases.

Related Posts:

  1. Problems with autoloading classes via sp_autoload_register / maybe interfering WP-specific autoloader
  2. How to remove duplicate sub-menu name for top level menu items in a plugin?
  3. category_name not working (not showing up in sql query debug)
  4. Using require_once in a Plugin?
  5. How can I make my custom shortcode work in a Custom HTML Widget?
  6. How to Loop Plugin Option Field Set?
  7. Update Multiple Post Meta for the Same Post In One call?
  8. How do I configure WordPress to talk to a Microsoft SQL Server database?
  9. Rename existing old uploaded images containing accented French characters (not during upload)
  10. How to Create a Directory in a Plugin Folder?
  11. Ajax call doesn’t work in frontend but it’s working in backend (when I’m logged in)
  12. Create plugin that works in background
  13. Checking for user role in a custom plugin
  14. HELP: Integrating WP with raw PHP code once published button is hit
  15. Loading class files via autoload method
  16. I would like to use create a function in my custom plugin to tell WP to use a different header
  17. Getting media library popup in custom plugin admin page
  18. jQuery function didn’t work in my plugin
  19. Sanitizing, Validating and Escaping in WordPress (Plugin)
  20. Escape when echoed
  21. Write to / remove from default .htaccess file from plugin?
  22. Plugin Development sqlite or WordPress’ database
  23. How to cancel WordPress’ action/filter when using OOP with anonymous callback
  24. WooCommerce get_price returning wrong price when used via ajax
  25. Open Post Thumbnail in New Child Theme File in WordPress
  26. Programatically download a plugin
  27. Redirecting to home page after login as custom role WordPress
  28. Add keywords meta to index.php page
  29. Pulling data from custom plugin settings using PHP shortcode and Javascript
  30. How would I go about creating a user ranked post popularity page?
  31. Creating a custom post type, adding custom meta fields, preventing all future editability of posts of this type
  32. What are the specifics of WordPress development I need to know? [closed]
  33. How to create a custom post type that contains another custom post type?
  34. Redirect to another page using contact form 7? [closed]
  35. Create a plugin from within WordPress
  36. Class variables not correct on page
  37. Why is one phpunit test throwing an error on one class when all other classes are similar without error?
  38. Activate my plugins via FTP
  39. Why is my custom post type not being activated on plug-in activation?
  40. How to add apply_filter for a class property in plugin
  41. Issue running db create table query from static method
  42. How to make multiple admin pages for one plugin?
  43. A server-side hook failed when committing plugin code to SVN
  44. Content-Security-Policy Headers are there and showing the correct settings, but still getting a refused connection
  45. How do I add $_SESSION[”] to my wordpress page?
  46. output html on post or page from custom plugin [closed]
  47. Built a second plugin but it overwrote the first one
  48. How to delete all categories programatically?
  49. How to use custom Javascript code inside a plugin?
  50. How to add/change (woocommerce) product tab icon
  51. Comment “like” problem – “users who like this” avatar linking to current user profile instead of “liker’s” profile
  52. I want to generate the pdf and save it in library?
  53. Way to send multiple values for column to MySQL?
  54. Using meta_query in a WP_Query not working for numbers properly
  55. How to write to a separate PHP file in plugin settings
  56. Create “new pages” within the admin section of plugin
  57. More gentle way to hook WordPress custom url
  58. How to display results from a data table with an encrypted user id?
  59. How to Call Specific .PHP file on add_submenu_page selection in Plugin Development?
  60. How to Add text value in Automatically in this conditions?
  61. Checkbox show / hide output result
  62. Conditional delete metadata does not works
  63. admin_notices show after load completed
  64. How can we get this dynamically as this folder may not be by the same name always → wp-admin
  65. Custom Plugin: How to Include Install Buttons of other 3rd Party Plugins?
  66. Hide content for specific users with id
  67. adding dynamic/multiple slug values in ‘option_none_value’
  68. Why is my shortcode not working?
  69. Rename a folder via HTML POST request
  70. Getting Fatal error: Uncaught Error: Call to undefined function plugin_dir_path() when linking to another file within my wordpress plugin
  71. How can I see $post object in frontend from functions.php?
  72. Move plugin pages from dashboard to front-end
  73. working code, not working – Plugin Dev
  74. WordPress plugin blog creation
  75. implement checkbox or toggle switch in plugin code
  76. 500 Internal server error wp_handle_upload_prefilter
  77. Create a form and have custom menu display based on user answers?
  78. Can’t access 3rd party API, code works on local server but not on wordpress
  79. Get post content inside plugin class method
  80. submit form data to wordpress existing database table using my plugin
  81. register_activation_hook doesn’t fire at all
  82. My ajax request don´t work and return 0
  83. Problem with conditional woocommerce custom checkout field
  84. How to limit each front-end user to view just his own uploaded files on Amazon S3?
  85. How can I insert a record into a custom table from my custom form in my custom admin page?
  86. Saving plugin data returns “You do not have sufficient permissions to access this page.”
  87. Plugin Breaking WordPress Login
  88. How to add a handler for a button in plugin?
  89. Can anyone tell me why I can’t edit a plugin when it is installed without having to re-install?
  90. Load my plugin before cache
  91. How to fix ‘Call to undefined function do_settings()’ error?
  92. wordpress select multiple options and illegal string offset ‘timeslot’ [closed]
  93. how to search through plugin in wordpress cimy-user-extra-fields?
  94. How to add custom html to the Media > Attachment Details modal?
  95. Displaying Category Feature image on loop
  96. How to override plugin function in code snippets WordPress
  97. How to create a “Most Popular” & “Latest” TAB in WordPress
  98. Use inline callable for hooks and filters
  99. Error in using ‘admin_enqueue_scripts’ action through a class
  100. Accessing Correct Database to Create REST API Endpoint