Creating your own options-general.php page

You don’t. You would have to keep your new page in sync with the core file each time WordPress is updated … that would not be very pragmatic.
Hook into the do_settings_sections('general'); with register_setting() and add your code here.

There is a third parameter for register_setting(): you can register a callback function here which used before the value is saved to the database.

See the @Otto’s WordPress Settings API Tutorial for some examples. In one of my own plugins I do the same: Public Contact Data. See the method function add_contact_fields() for details.

Related Posts:

  1. Some fields in Settings API form are saving, others are not
  2. wp-admin pages return ERR_EMPTY_RESPONSE
  3. Reorder custom submenu item
  4. WordPress custom permalinks not working on OS X localhost
  5. Add custom content in user-edit.php page
  6. What is an “Options Framework” for WordPress
  7. WordPress address URL keeps dropping the www
  8. using wp_sprintf at wordpress option page,
  9. WordPress Options Page not working
  10. How to change user admin_color with WP CLI?
  11. Hide admin menu on update_option
  12. Custom plugin admin page issues
  13. Change admin defaults for reading settings
  14. unsuccessful attempt to change domains- wordpress re-routing to old domain
  15. Form input values are empty after submit
  16. Admin page changes the $_POST data
  17. How to Fix WordPress Not Saving Settings?
  18. How to display status messages in admin panel
  19. Options site set empty fields after submitting
  20. remove_query_arg on options.php
  21. I am not able to enable jQuery in theme settings
  22. Cannot Update wp DB – Get 500 Error
  23. Changing Admin Menu Labels
  24. Is there ANY way to remove comments function and section totally?
  25. Unit testing in the WordPress backend (is_admin() is true)
  26. How can I improve the line break handling in the WYSIWYG editor?
  27. How do I change the login logo URL and hover title?
  28. js error on post editing page
  29. How to add a custom metabox to the Menu Management admin screen?
  30. How to change the wording in wp-admin back-end?
  31. How to make ajax call in wordpress in right way?
  32. Only allow administrators and editors to access wp-admin
  33. Bulk Delete Users Error uri too large
  34. Custom plugin settings: clicking “save changes” does not display success message
  35. Can you change the main heading of a page in the WordPress admin (without output buffering or JavaScript)?
  36. Can’t output do_settings_sections . Can’t understand why
  37. Change the Return URL from the Customizer
  38. Where can I edit Admin Panel Page file
  39. how can I detect that option value has changed?
  40. How to display some settings for super admin user only using Settings API
  41. Performance of several get_option() calls
  42. Failed to load resource admin-ajax.php
  43. Additionally added URL params leading to “Invalid post type.” in the Admin Panel
  44. Custom WordPress Dashboard for Specific user role
  45. How to get bool with `get_option()` when already registered setting with type `boolean`
  46. 404 of wp-admin pages [closed]
  47. Remove Internal Style Sheet if no Value Provided?
  48. Execute script only on certain admin pages
  49. Detecting all admins that are logged in
  50. Sortable columns and admin like interface for tables/report in custom plugin?
  51. Remove favorites action menu and screen options panel
  52. No access local wordpress website after PC formating
  53. An update has caused my client’s site to be non-existent after new update of WordPress [closed]
  54. White screen of death in Dashboard after clean installation
  55. WordPress (admin) posts search GET request filter
  56. How can I replace dashboard.css and dashboard.min.css (not add new css)
  57. White screen of death for wp-admin and error for wp-login.php after entering credentials
  58. ‘wp’ hook supposed to trigger when editing a post?
  59. How to remove dashboard access (wp-admin) for author but not disable the capabilities?
  60. always by default show welcome panel in the dashboard
  61. Add and Remove Row Actions in an Existing WP_List_Table
  62. Dashboard Widget CSS
  63. Add styles to wordpress admin on the Page List
  64. making users.php search include a specific user meta data field without messing with the SQL query itself
  65. Move WooCommerce menu entries to top of dashboard
  66. “options.php” not found
  67. WordPress Admin Toolbar Disappeared when moved site to subfolder
  68. Admin sometimes redirects to HTTPS
  69. Hide user group filtering links
  70. 404 Admin Error
  71. auto generated robots.txt problem
  72. Change maxlength of link_description in dashbord link section?
  73. wordpress wp-admin/includes/shema.php file has been modify alone
  74. Broken Customizer page
  75. wp-admin going directly to 404
  76. Should I move wp-admin to a separated server? How to do it?
  77. WP-Admin throws 404 after changing wp-config Salts
  78. How to create a new section on the wordpress admin dashboard?
  79. What event I can tap into that fires before loading wp-admin page?
  80. How to fix the view of admin all posts
  81. WordPress Settings API Overrides My Previous Value
  82. mixed contents admin panel is Unsecured
  83. Link with password is not sent to the new user
  84. Can’t access Network Admin dashboard in wp-admin
  85. Can I rename the wp-admin folder?
  86. How do I list subpages in post editor view?
  87. Database problem
  88. WordPress Admin Page Redirecting to Subdomain
  89. Remove Theme menu link from Admin Panel
  90. Why does my edit screen suddenly have such a buggy interface?
  91. Unable to log in as admin
  92. Add files to wordpress admin panel footer
  93. Can I rename the wp-admin folder?
  94. WordPress Child problem in admin
  95. Option page not updating multiple records in settings api
  96. How to display product category’s individual product list in shop page?
  97. WordPress br in content problem
  98. Options don’t save, validation callback not executed
  99. wp-admin blank page after admin login and all security off
  100. Can a wordpress admin see my failed Login attempts?
techhipbettruvabetnorabahisbahis forumutaraftarium24edueduedueduedueduseduedusedusedus