BuddyPress and namespacing

Try using if ( class_exists( '\BP_Attachment', false ) )?

Could be that you need to tell PHP that the class is in the global namespace

Related Posts:

  1. How to get the ID of the currently logged in user?
  2. add_filter : Passing an array instead of the callback function?
  3. Buddypress function and global $bp question
  4. How do I add a text field under the activity texarea? [closed]
  5. Problem with autoloader and namespaces
  6. Buddypress: adding a new tab direct user to their author page
  7. Buddy Press restrict the capability to edit users
  8. Custom premium registration form and profile page for a WordPress Web Application
  9. modify buddpress adminbar only in admin pages
  10. Objective Best Practices for Plugin Development? [closed]
  11. add_menu_page() with different name for first submenu item
  12. Autoloading & Namespaces in WordPress Plugins & Themes: Can it Work?
  13. How to include PHP files in plugins the correct way
  14. How can I add an image upload field directly to a custom write panel?
  15. A tool to analyze rewrite rules? [closed]
  16. Difference Between Filter and Action Hooks?
  17. framework for plugin/theme options panel? [closed]
  18. Creating a table in the admin-style?
  19. How can you check if you are in a particular page in the WP Admin section? For example how can I check if I am in the Users > Your Profile page?
  20. Settings API with arrays example
  21. How to get the path to the current theme?
  22. How to make a plugin require another plugin?
  23. ajaxurl not defined on front end
  24. What process do you use for WordPress development? [closed]
  25. What’s the difference between term_id and term_taxonomy_id
  26. Should I use wpdb prepare?
  27. Why does WordPress use outdated jQuery v1.12.4?
  28. Post meta vs separate database tables
  29. Is there any plugin development framework
  30. Is it possible to reuse wp.media.editor Modal for dialogs other than media
  31. How to add a javascript snippet to the footer that requires jQuery
  32. Enhance Media Manager for Gallery
  33. How do I create a custom role capability?
  34. How do I add CSS options to my plugin without using inline styles?
  35. How do i best handle custom plugin page actions?
  36. Adding Custom Text Patterns in the WP 4.5 Visual Editor
  37. Automatically determine minimum WordPress version required for a plugin?
  38. What is the advantage of using wp_mail?
  39. How to make a WordPress plugin translation ready?
  40. How many times will this code run? (or, how rich is grandma?)
  41. How to create an API for my plugin?
  42. Is it ever okay to include inline CSS in plugins?
  43. Plugins in symlinked directories?
  44. How to override existing plugin action with new action
  45. How to include a file using get_template_part() in a plugin?
  46. Add custom TinyMCE 4 Button, Usable since WordPress 3.9-beta1
  47. How to store username and password to API in wordpress option DB?
  48. body_class hook for admin pages
  49. “Error: Options Page Not Found” on Settings Page Submission for an OOP Plugin
  50. Is it mandatory to use $wpdb->prefix in custom tables
  51. Which hook should be used to add an action containing a redirect?
  52. add_action hook for completely new post?
  53. Why does WordPress add 0 (zero) to an Ajax response?
  54. What should I use instead of WP_CONTENT_DIR and WP_PLUGIN_DIR?
  55. How to enqueue JavaScripts in a plugin
  56. In Which Contexts are Plugins Responsible for Data Validation/Sanitization?
  57. Plugin Form Submission Best Practice
  58. How to redirect to settings page once the plugin is activated?
  59. Is get_option function cached?
  60. Should Plugin Folders Include a Blank index.php File?
  61. Unit testing for plugin development
  62. Methods of Integrating Plugin Data with Themes
  63. What is the wordpress wp-includes folder for?
  64. WordPress Update Plugin Hook/Action? Since 3.9
  65. How to include jQuery and JavaScript files correctly?
  66. How come `wp_options` table does not have an index on `autoload`?
  67. PHP error with shortcode handler from a class
  68. Update Option Stored in Multi-Dimensional Array
  69. check if Gutenberg is currently in use
  70. Best way to abort plugin in case of insufficient PHP version?
  71. WordPress Plugin Development – Headers Already Sent Message
  72. WP 3.3 How to Add Menu Items to the Admin Bar?
  73. dbDelta not creating tables
  74. Custom Widget function in Plugin not working?
  75. Passing arguments to a admin menu page callback?
  76. Single functions.php or split into many small files?
  77. Get page content using slug
  78. $_POST form request with admin-post
  79. How to fork a plugin?
  80. How can I configure Docker for developing and deploying a custom theme?
  81. How to include wp-load.php from any location?
  82. Correct way to enqueue jquery-ui
  83. Where to store PHP files created by plugin / themes
  84. How to echo the_excerpt without the P tag wrapper?
  85. How can I update a wordpress plugin from a Git repository (github)
  86. What are the advantages to the Settings API?
  87. Add screen options to custom admin pages
  88. Strategy On Building Plugin Using Eclipse
  89. How to add sub-menu to a menu generated by wp_nav_menu by using plugin
  90. Is There a Plugin Life Cycle Documentation?
  91. What do you think about custom designed plugin/theme options UIs?
  92. No Error Log File, no debug info
  93. Is it necessary to bump a plug-in’s version if you’re just updating the “Tested up to” attribute?
  94. Adding Widget form fields dynamically
  95. How to debug a plugin with Xdebug?
  96. WP_Query leaking absurd amounts of memory
  97. What is the difference between $post_id and get_the_ID()?
  98. How do I improve this admin query snippet to avoid generating duplicate results on non-meta searches?
  99. Where to store plugin settings fields
  100. Add self-closing shortcode button to TinyMCE in WP 4.6
Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)