integrating external php library into wordpress- the right way

You might want to look into creating a MU (Must Use) plugin, see WordPress Codex. Within this file, you can include your library (using require) or you could just tweak your library file a bit and use it directly as the MU plugin. The session_start() and ob_start() functions worked for me with ever-so-brief testing, but your mileage may vary so test test test 🙂

Related Posts:

  1. wordpress.org disallowing my plugin becuase of loading core files in cron cpanel file
  2. Include WP_Query in my own PHP file?
  3. Include a external PHP file into a WordPress Custom Template
  4. Upgrading PHP version results in “Use of undefined constant WP_CONTENT_DIR” warning?
  5. Include files in functions.php
  6. load/require specific php files for specific pages/templates/post types
  7. Display message once per session to users with a specific role
  8. How to log out everywhere else, destroy all sessions “all other devices”?
  9. Why does $_SESSION only work when I am logged in?
  10. How To Make Connection To WordPress Data Base In A Plugin?
  11. ob_get_clean returns empty string, ob_get_flush outputs string
  12. Renaming wp-content folder dynamically
  13. Fix 403 error on WordPress multisite network using subdomains
  14. Make WordPress upload directory outside wordpress root with custom url
  15. Notice: Constant already defined in wp-config.php on (non-existent) line?
  16. how to create and show sessions in word press?
  17. where to include a php file
  18. Should I store my Facebook access tokens?
  19. No wp-config.php file on local install of wordpress – site still displays
  20. Site Health : An active PHP session was detected
  21. How can I change WordPress domain from remote to localhost?
  22. Why am I getting ERR_NAME_NOT_RESOLVED when I add a site to my multisite installation? [closed]
  23. Include Class File in WordPress
  24. nowplaying.include.php Will Not Display Results
  25. Change title and meta description in included page (not template)
  26. Can I change a variable in a content part while calling it?
  27. the_author() not working outside the loop
  28. How do I use the Simple HTML DOM Parser in plugin when other plugin already uses it?
  29. Put CSS inside a PHP file and include it the right way
  30. Force SSL using FORCE_SSL_ADMIN
  31. How to expire session after 2 hours and also expire when browser closed?
  32. How can I resolve the php notice “Constant EMPTY_TRASH_DAYS already defined”
  33. functions.php is being included twice, creating PHP fatal errors
  34. Custom theme: Alternatives to long list of ‘include’ in functions.php
  35. Fatal Error relating to sessions.php
  36. PHP help get_template_directory + PHP include
  37. code is skipping a div
  38. How to store post ID’s in cookie or session to display the same posts later
  39. Is it possible to increase php memory without directives in wp-config.php, .htaccess or php.ini?
  40. iframe does not store session/cookie when refresh parent
  41. Unique session WordPress
  42. Why does abstracting html from plugin code result in loss of access to wordpress functions?
  43. PHP include is only working in certain places in my custom WP theme
  44. Correct and safe way to include php content in my page
  45. Get my site session in wordpress?
  46. Having Issue on Redirecting With Session in WordPress
  47. How to add API security keys into JS of wordpress securely
  48. Unset session variable on page reload / setup but exclude AJAX
  49. What is the proper way to include a PHP framework into my theme?
  50. Moving wordpress site from localhost to live server using GoDaddy cPanel
  51. What is the difference in the WP memory limits?
  52. php include not working in custom page
  53. Post’s ID pattern?
  54. Using WP functions such as the_title() in an included php file
  55. What’s the best way to include PHP code in pages?
  56. Set site title & tagline with wp.config or function.php
  57. $_SESSION variable not saving on page refresh or new page
  58. Use custom template on custom post type
  59. $_SESSION variables work perfectly on my local machine but returns NULL on development webserver
  60. How to include custom PHP file both in header and footer files
  61. The session works on the local server, but not on the web server
  62. Custom $_SESSION expires too early
  63. Can we stop session reset if page reloads?
  64. Store and Change Session variable – PHP SESSION VARIABLE
  65. Include a file that has a function in it
  66. How to decrease the max file upload size without using php.ini or htaccess?
  67. How do I call an external php non WordPress class into functions.php?
  68. Deleting expired session tokens in WordPress
  69. PHP: $_SESSION destroyed after page reload for my custom session
  70. Set cookie parameters on wp site – PHP not working?
  71. Are there any drawbacks on opening a session_start in functions.php and header.php?
  72. How can I redefine WordPress wp-content directory programmatically?
  73. Like and Dislike Buttons on Post with Counter – Only allow one click per post per user session
  74. require get_template_directory() . ‘path/to-my/file.php’ BREAKS customize > themes functionality
  75. PHP session not staying alive. headers already sent
  76. Site cannot access external connection
  77. Sessions with WordPress
  78. Before & After Content – After Content directly below Before Content when using require_once
  79. Use WP user status (logged_in) to manage access to independent application
  80. ajax polling with admin-ajax.php
  81. loading a php file to a specific page id
  82. Serve cookie free URLs in WordPress without using a CDN
  83. How do I fetch a data from an external database into my wordpress homepage
  84. Where are Sessions are being started? [closed]
  85. WordPress & PHP sessions
  86. Shortcode not passing variable to included file
  87. WordPress developer
  88. php “use” not working in template [closed]
  89. How to include a php file in every post and page [duplicate]
  90. Shortcode to include PHP file, pass various parameters to include?
  91. WordPress White Screen Error
  92. Difference between php memory limit and wp memory limit?
  93. How to transfer session after being redirected to other page
  94. Detecting charcater encoding for wp-config.php file
  95. Changing WP_MEMORY_LIMIT doesn’t affect actual memory limit
  96. Suddenly sessions and header location not working
  97. Should I use include(_once) or require(_once) for loading php-file with customizer settings?
  98. PHP – Having $_SESSION as an array and adding $_SESSION to array
  99. How rename wp-content and wp-admin folders correctly
  100. Enabling pretty permalinks with Docker, Multisite WordPress and Caddy
Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)