Distinguish between 2 instances of admin-ajax.php

There isn’t much point to distinguishing admin-ajax.php since it’s essentially same file with same logic running for many many purposes.

You are passing action data and hooking into respective action. So action is your identifier. If you are reusing same action and need to further differentiate — just pass more data with your GET/POST request and check for it in your handler.

Related Posts:

  1. How to allow to user non logged in WP system upload in media library?
  2. How to set post_id to 0 when you upload image via Add media button. (async-upload.php)
  3. Load minimum WordPress environment
  4. admin-ajax.php returns 0. How do I debug it and fix it?
  5. Add item to media library from blob or dataUrl
  6. AJAX action not triggering PHP function
  7. Using wp_handle_upload and media_handle_sideload with ajax
  8. How to know what page is calling admin-ajax.php?
  9. Ajax image upload with media_handle_upload and form.js
  10. wp_handle_upload returns empty error array
  11. Pass additional parameter with async upload
  12. How to disable drag-and-drop upload function in Media Library?
  13. Why is the file not uploading to the server?
  14. Filter images from media library by guid meta field
  15. Frontend AJAX Media Upload returning 404
  16. How to require files in a custom endpoint
  17. Cannot add multiple single images at once
  18. How to send custom variable in Media Uploader ajax request?
  19. wp_enqueue_media problem
  20. Access-Control-Allow-Origin error sending a jQuery Post to Google API’s
  21. JavaScript implementation of Gzip
  22. How to Protect Uploads, if User is not Logged In?
  23. WordPress AJAX with Axios
  24. How to wp_upload_bits() to a sub-folder?
  25. What might cause a POST to wp-admin/async-upload.php to return JSON >and< HTML?
  26. Is it possible to trigger some JavaScript when Media Popup is opened?
  27. Admin Notification after save_post, when ajax saving in gutenberg
  28. Initialize JS with an ajax loaded ACF form
  29. WordPress Nonce Issue for Ajax Login and Logout
  30. How to modify wp_ajax function?
  31. Vue.js + AJAX Shortcode
  32. Turn jQuery.ajax() request into XMLHttpRequest (vanilla JavaScript)
  33. wp_remote_get() to get AJAX url /wp-admin/admin-ajax.php
  34. wp_ajax action is not running
  35. Ajax – gettext without a plugin
  36. Adding File Extensions to Attachment Page Permalinks
  37. How do I set the url to make an ajax request for a html document?
  38. How to import 55k images (uploaded via FTP) into WordPress Media libary? [closed]
  39. AJAX image upload with a upload progress bar using media_handle_upload
  40. Media_handle_upload with custom upload folder?
  41. wp-admin AJAX with Fetch API is done without user
  42. Ajax stops working when logged in?
  43. WordPress ajax get content post id
  44. Populating content dynamically via AJAX and Advanced Custom Fields [closed]
  45. How do I get allowed Media Library upload file extension list?
  46. Create Page With wp_insert_post() and AJAX
  47. How to order images in a post in WordPress 3.3?
  48. Get wp_title wp ajax
  49. Allow only attachment uploaded to current post
  50. Ajax custom search not functioning as expected
  51. Control attachments menu order with jQuery Sortable
  52. Speed/Performance difference between `wp_ajax` and `init` checks for AJAX/POST requests?
  53. How to handle 400 status in Ajax [duplicate]
  54. Remove trailing 0 from function that is used both statically and dynamically
  55. How to load next and previous posts by Ajax
  56. WordPress media uploader – upload tabs not hiding
  57. WordPress ajax works on FF but not on IE & chrome
  58. Disallow second login session
  59. Upload multiple images and insert them into custom html code
  60. Uploaded images not displaying in network site
  61. POST Ajax bad request
  62. Too slow Image upload in WordPress Media Library as image number increases
  63. How to limit the number of images displayed in the media window?
  64. How to upload media to specific year/month folder
  65. PHP error when trying to upload .mp3 files via Media Library [closed]
  66. Ajax for subscibers not working
  67. 200 return code on ‘POST /wp-admin/admin-ajax.php’ while NOT logged in
  68. Open Media Uploader Link in single post or page
  69. i’m trying to get all my media query attachments via ajax in wordpress
  70. Use AJAX in a WordPress Plugin to Get Data From Custom Database?
  71. Custom RPC end-point security best pratice?
  72. AJAX – SHORTINIT set to TRUE returns blank
  73. Ajax mousedown call getting “cancelled” when clicking link
  74. Get uploaded attachment width & height and attachment ID after upload them
  75. Refresh checkout fields on add to cart with order bump
  76. Add Server Side validation in Ajax mail form
  77. Is it good practice to use REST API in wp-admin plugin page? [closed]
  78. Ajax not sending the data correctly- Multidimensional array
  79. Replicate Media Galley Edit view in Add Media View
  80. Handle image file and save it to media
  81. How to check Ajax request only when i opened the Notifications list?
  82. All WordPress AJAX calls always return 0
  83. how to get password from user instead wp-generate-password
  84. Image paths wrong after migrating with wp-migrate-db-pro media files add-on
  85. Class called in template, AJAX not registering
  86. Altered Media Library URLs
  87. Same query in category.php and in function.php, but different result
  88. How to use nonces for frontend AJAX voting if the page gets cached?
  89. 403 (Forbidden) delete file image in themer folder
  90. Ajax request to admin-ajax.php and window.location.href
  91. Media Library not showing images when adding to Posts (but retrieving image info via ajax)
  92. Objects and get_post_meta() gives me 1 string for latitude and longitude
  93. WordPress ajax requst returns zero
  94. wp_editor() in content that was loaded with ajax [duplicate]
  95. WordPress blocking polling request when signed into Admin
  96. Facebook Pixel + WooCommerce + AJAX = Confusion
  97. Send button using own contact form [closed]
  98. How to get data with Select AJAX PHP
  99. Many images in wp-content/uploads folder that are not in Media Library
  100. Bad Request 400… jQuery ajax post of json data to wordpress admin-ajax.php