$wp_filesystem returns NULL. What are the dependencies?

$wp_filesystem is a global variable containing the instance of the (auto-)configured filesystem object after the filesystem “factory” has been run.

To run the factory “over” the global variable (so to set it), just call the WP_Filesystem() function which is, guess what, undocumented in codex. At least the docblock contains some information and you can read the sourcecode (if that’s an option for you).

Anyway, I would give it a try to add a function call to your code after requiring the file.php from the /wp-admin/includes directory. Probably this already solves your issue.

If you are looking for a (better) file-system abstraction than/next to the built-in one, consider the file-system objects in SPL which is part of PHP already.

Related Posts:

  1. Where to store PHP files created by plugin / themes
  2. Get page content using slug
  3. Standard location for plugin to save/cache files?
  4. What is the correct way to build a widget using OOP
  5. Do I need to use WP_Filesystem when creating a downloadable file on the fly?
  6. Has anyone managed to integrate the wp_editor inside a widget?
  7. Two-step login process – Is it possible?
  8. How do I edit the php/html for a particular post?
  9. How to store accumulate multiple option values in a single array using Options_API
  10. Admin-ajax.php appending a status code to ajax response
  11. Why cant the WP Filesystem API read googlefonts.json?
  12. Using wp_filesystem in Plugins to store customizer settings
  13. Show dialog box in TinyMCE plugin and use WordPress php functions in it
  14. How do I alter the comment form ‘allowed tags’ text in a plugin?
  15. Files automatically added
  16. Applying OO patterns and principles to plugin development
  17. Plugin writing: access file that was just uploaded
  18. How to implement filesystem cache in WordPress
  19. Failed to Open Stream: Permission Denied While Writing to an XML File in a WordPress Plugin
  20. “dashboard”-named PHP file doesn’t get included
  21. Is file_get_contents() the only way for plugins reading local files OR does WP_Filesystem_Direct::get_contents() even work?
  22. Where to write custom logs in WordPress
  23. wp_filesystem put_contents issue with owner/group
  24. Widget HTML Display Problem
  25. wordpress JSONAPI introspector always limits number at 10?
  26. How to replace file_get_contents() with a WordPress Filesystem call
  27. WordPress Specified file failed upload test
  28. Running rmdir function on post save
  29. Make Database query only when option is updated
  30. Getting a WordPress Debug Strategy
  31. PHP File_exist() not working – Checking if File Exist in WordPress Theme Directory
  32. Look for a file in a theme before loading from plugin
  33. Working of foreach loop with array
  34. Cleaning a filename after image sideloading a url that contains `%20`
  35. Adding Permalink to Slides with ‘Simple Nivo Slider’ plugin?
  36. Setting a post’s category
  37. Why doesn’t update_post_meta work for certain strings?
  38. post content and shortcode content displaying out of order
  39. “Rendering of admin template [path to template] failed”
  40. How to determine which capability to use?
  41. Why is that only the first row getting inserted into Mysql table when i import csv file on backend custom plugin?
  42. WordPress Filesystem create CSS-File – get Shortcode ID for Name
  43. foreach argument to get specific file types getting too many returns
  44. Why does unzip_file always return true but nothing happens?
  45. Displaying $_FILES data (simlar to $_POST)
  46. WordPress upload path decalration
  47. Do Not Back Up? Is there any accepted way to tell backup and clone plugins to skip a certain file? [closed]
  48. Custom Icon for Plugin
  49. Change the behaviour of a button
  50. Change Dropdown jQuery to show/hide but with default place holder that shows all
  51. WP_Query order posts by category
  52. Custom Block Not Shown in Block Inserter
  53. How to override supports of innerBlocks?
  54. Login page too many redirects
  55. How to correctly escape an echo
  56. PHP using external anonymous function inside class
  57. Set the payment processor callbacks to a plugin
  58. Configuring Xdebug with docker compose
  59. .htaccess with WordPress – create my own pretty url with parameters (above WordPress settings)
  60. Paragraph Tags removed when contents are only a shortcode
  61. how to show youtube comment profile pic in wordpress
  62. When I activate my custom plugin the menus and some styling of my site is messed up
  63. Checkbox show / hide output result
  64. How to create archive page to add in menu
  65. Make a php array load faster
  66. wp.media libary pdf type
  67. Simulating timeout is not working
  68. Add multiple checkboxes as single field to Custom Shipping Method Settings Page
  69. Import images remotly run through timeout error
  70. How to make every image title equal to alt text(wordpress/woocommerce)?
  71. Custom payment method after payment user is logged out on thank you page
  72. Load specific page when a custom URL is hit
  73. The URL of images on my website changed after being set as featured image
  74. Allow REST API Endpoint to specific user and hide from public
  75. How to use attributes in competent of Gutenberg
  76. Ajax on the Administration Side of plugin – wp_localize_script – how to pass value from JQuery to PHP function in class?
  77. Ajax on the Administration Side of plugin – returns 0
  78. Problem with inserting multiple images in gallery of each WooCommerce product programmatically
  79. How to create wordpress media library UI on plugin page
  80. Why my theme’s css not working on another site
  81. Create Woocommerce product without creating api credentials
  82. var(–text-color) in style.scss works once but not twitch
  83. How to call a function from a shortcode function in an oop plugin
  84. How to trigger selected option from a clic. (variation product woocommerce)
  85. How to access index file in Block Themes?
  86. Custom Endpoint – Does it possible to use PUT method with WP API Rest?
  87. How Place a Custom Form Fields in a specific location on the User Profile Page?
  88. How to determine primary editor for a page/post
  89. How does one update complex options?
  90. wp_new_user_notifications to notify user and admin about new user registration
  91. Is it possible to access admin-ajax.php using PHP?
  92. Is it possible to use the MySQL’s ORDER BY FIELD() clause as part of the pre_get_posts hook?
  93. Access to the template file of a plug-in
  94. List all user post API endpoint
  95. How to highlight a page in the page list (Admin Menu)?
  96. Can’t remove action hook on plugin class
  97. i need to make custom cron_schedule with custom interval time as a parameter into a custom payment gateway plugin wordpress
  98. Using wp_mail to send email?
  99. Payment field disappears on custom Paypal plugin
  100. Which wp plugin can use Create, Edit and Delete Email address from WordPress Dashboard

Leave a Comment

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)