Determining when was the last time a plugin was activated

It looks like, in a Multisite installation, any network-wide plugins record their activation time in a site option. By default, plugins activated in a single site in a Multisite network (or in a single-site installation) do not.

See the source of the activate_plugin() function.

You could write a simple plugin that records that information, using the activated_plugin hook, but that won’t help you with any older plugins — any data you record that way would only exist from now[^1] on out.

[^1]: If by “now” we mean “the moment you activate your plugin-tracking plugin”.

Related Posts:

  1. Making my plugin multi-site compatible
  2. How Can I Securely Implement a Password-less Login Feature?
  3. Syntax highlighting for post/page editor [closed]
  4. run silex or slim with wordpress
  5. How to create a WordPress plugin for another wordpress plugin?
  6. Admin menu as submenu from another plugin
  7. How Is Network Activate Different From Activate (by Implementation)?
  8. Shortcode output appears before post body [duplicate]
  9. Automatically Creating Posts for Popular Forum Topics or Products [closed]
  10. use WordPress theme / plugin editor in my plugin
  11. WP Config for FTP credentials
  12. What is the best way to output plugin result in certain url
  13. How to call shortcode function directly and pass $atts
  14. Plugin Development: WordPress processes twice on post update. How to skip process on the first?
  15. Multi step form, custom plugin
  16. This doesnt work for Plugin get_template_directory_uri()
  17. Contact Form 7 plugin refreshing page on submit [closed]
  18. Some Plugin Settings Are Kept After Removal and Reinstall of the Plugin
  19. why does the add_action(‘the_content’) overwrite my page
  20. Fatal error: Class not found in
  21. Is it ok to call get_option without hooks?
  22. Send emails with wp_mail() using SMTP configured in plugin
  23. Show “Local Pickup” shipping method only for specific Woocommerce product categories [closed]
  24. What user roles should have wp_unique_post_slug_is_bad_flat_slug filter applied?
  25. Can I check plugins and themes for PHP 5.6 ahead of global PHP server Update
  26. How can I reuse the WordPress search form for a custom plugin / widget?
  27. Is there a way to make a pure vanila page of just HTML/CSS/JS
  28. Set of plugins to control the Admin UI
  29. Appery.io and WordPress
  30. Plugin upgrade issue
  31. Simple ajax call not working in wordpress plugin
  32. __callStatic method handler passed to add_action causes bug in PHP
  33. Multiple instances of nivo slider plugin
  34. How to use wordpress $polylang->model->set_post_language in custom php code?
  35. Interactive filters on wordpress [closed]
  36. Plugin-generated pages use Not Found or Pages Archive templates?
  37. Most efficient way to use classes to create admin pages using Settings API
  38. CMB2 toolkit: Compare 2 Dates and validate the Time
  39. Save custom attributes of product in woocommerce
  40. Add padding while generating thumbnail
  41. Using TinyMCE in plugin?
  42. One file for all translations
  43. Send admin an email when a user’s search has no results
  44. How to Loop Through all Posts and Count Attachments using Get Media Attachments
  45. Shortcode not working after move wordpress website files
  46. Contact Form 7 – Form name blank [closed]
  47. plugin dev – minimum base css specificity?
  48. Help with comments.php
  49. OceanWP settings are missing from Add New Post [closed]
  50. How to place a function from another class in add_action 2nde argument?
  51. Loop returns the current page’s permalink and guid instead of the post in the loop
  52. display connected User to post
  53. Creating an admin meta box to save post as pending
  54. Plugin upgrade failing during unzip
  55. How i can remove Working Functionality of my header & footer plugin from backend files but in front end plugin need to show that plugin activate
  56. WoCommerce Cart is not showing pricing
  57. Plugin or ways to limit number of users logging in the website,
  58. WP Ajax DB issues
  59. ACF checkbox return format based on page
  60. How to capture hidden values with Gravity Forms
  61. Hide response returned from WordPress REST API call
  62. Paid Membership Pro displaying a user name in PHP
  63. Customize plugin’s output: filters or setters: looking for an advice
  64. Uncaught TypeError: Cannot read property ‘cycle’ of undefined
  65. Make another copy of a plugin and install it
  66. WordPress drop domain alias
  67. Custom plugin giving: wp-admin/admin-ajax.php 400 (Bad Request)
  68. WP Plugin CSS not being applied to page
  69. In the WordPress API is there a way to set the width of the post/page container
  70. Unable to sync woocommerce variations
  71. Is there a function to search for a wildcard value when calling a shortcode?
  72. Plugin does not create a custom table upon activation
  73. Automatic updates of plugins and themes outside of wordpress.org
  74. Plugin hook breaks new WP 4.0 media library grid view?
  75. Hyperlink to execute PHP
  76. How to get site homepage from plugin?
  77. Contact Form loaded with Ajax
  78. Link Forms on WordPress
  79. How to correct Error: message on website Twitter Feed
  80. homepage olderposts link showing page not found
  81. Image rotator plugin
  82. Vote It Up Plugin – Add ascending numbers to MostVotedAllTime Chart Function
  83. Automatically set posts to NoIndex depending on category?
  84. Custom time field won’t sort regardless of format
  85. Move specific javascript to the footer
  86. How to send email when my plugin is activated?
  87. Why does theme need woocommerce to show images / content on front page?
  88. WordPress Hooks : Where to place callbacks that repetitively yield the same effect?
  89. wordpress Ajax success doesn’t return the value
  90. Custom wordpress plugin does not save select element
  91. Need help with wordpress audio preload
  92. Share or sync user table data with another user table
  93. move setting data from wordpress api to codestar freamwork
  94. How to access the page without registering in wordpress
  95. CPT template is not being automatically used single post pages
  96. How to create new title and its description inside a section in WP Customizer?
  97. Issue: Unable to Access WordPress Admin and Database Errors
  98. I want to move the one click accesbility button on bottom of my website screen,
  99. WordPress : how to create onglet and remove it when only one
  100. Which approach for managing automatic updates would be more robust?