Programmatically install and activate child-theme

Yes, you can activate the child-theme dynamically. To do that follow the steps

  1. Move the unzipped child-theme to the themes folder
  2. Find the name of the child theme(I guess you already have that)
  3. Then Update the options table by update_option('stylesheet', 'NAME OF THE CHILD THEME')

NOTE: You need to be sure that the active theme and child theme is compatible with each other.

Related Posts:

  1. wordpress on localhost lamp doesn’t let me install plugins
  2. Prompted for FTP details even with FS_DIRECT set to true
  3. What plugins do you commonly install on a fresh WordPress install?
  4. Overriding Plugin Template Files with Child Theme
  5. How do I cleanly override a plugin’s CSS with a child theme?
  6. Combine multiple plugins into one?
  7. What is the purpose of the “Hello Dolly” plugin?
  8. How to properly secure my WordPress installation?
  9. Function to activate WordPress theme inside a plugin
  10. WordPress plugin installation error
  11. Install plugin remotely
  12. What is $tab in `install_plugins_{$tab}` hook?
  13. Plugin to install a plugin
  14. Override the core function locate_template
  15. Distributing and packaging plugins
  16. How to override my plugin’s php classes with duplicates that are in my child theme folder
  17. Uncaught Error: Call to undefined function get_user_by() after moving function from theme to plugin
  18. unzip a folder on specific location and delete the zip file
  19. How to edit Image layout in single product page in woocommerce on wordpress?
  20. How to check what plugins used to be on a WordPress installation?
  21. Error uploading plugin zip file
  22. What causes an Unexpected HTTP Error within install plugins?
  23. How does WordPress process plugin installations?
  24. CMB2 installation – cannot get it to work
  25. Reusable functions and tools (Framework)
  26. Loading child theme script after plugins scripts
  27. Override Javascript in a Plugin?
  28. Pushing out updates to multiple installs?
  29. Why does my functions.php cause white-screen and media-library issues?
  30. Installing a plugin on a premium site [closed]
  31. How to overwrite core/libraries/vendor template with child theme
  32. Buddypress – Add the post_id in the bp_activity_add function
  33. Removing an action from wp_footer called in a class that’s inside a bigger class
  34. Create a multisite network for an existing installation
  35. How to show only next post pagination link using wp_link_pages()
  36. Theme/Plugin installation through url on button click
  37. Installing plugins and using complex folder structure with child theme in WordPress
  38. Why this function not working for install database on plugin activation
  39. Import sql data from a large file when installing plugin
  40. Overriding Parent Theme… will cause plugins failure?
  41. How to over-ride a file in a plugin? [closed]
  42. Get plugin download URL from slug
  43. WordPress override archive page template using a plugin
  44. Child Themes and Updating Parent Theme
  45. plugin generated 751 characters of unexpected output during activation
  46. WordPress Plugins Don’t Automatically Update
  47. Can plugin2 uninstall plugin1 at the very beginning of plugin2’s installation?
  48. What are the correct permissions so WP doesn’t ask for FTP credentials if installing plugin?
  49. Problem installing plugin: unexpected T_STRING, expecting T_FUNCTION
  50. To perform the requested action, WordPress needs to access your web > server
  51. WooCommerce: after install hook
  52. Managing wordpress Themes & plugins for multisite
  53. Set up functions to be overridden without using function_exists() by short-circuiting them?
  54. How to customize this theme? [closed]
  55. Installing plug ins on a wordpress hosted site
  56. Unable to install plugins
  57. Next Previous Post in wordpress with previous / next link with title?
  58. Trying to use shortcode for a plugin on custom homepage of Responsive theme
  59. Per theme plugins?
  60. Plugin Add New Installer failing
  61. Installing a Plugin ( Which is already manually uploaded )
  62. How to override any plugin file in the child theme
  63. how to create a custom page in child theme or plugin?
  64. I have updated my plugins, though one page of the site has ‘hit a critical error’
  65. Theme that includes a “core” plugin but the files in theme and child folder ignored
  66. Genesis Child Theme – Customize body
  67. Override plugin images so that they are not removed when the plugin is updated
  68. Plugin function in child theme
  69. Crazy redirect happening with no redirects set up
  70. Google trying to index child theme files
  71. How can I write code in a plugin for my child theme that will allow me to use remove_action() based on if the current page is the home page?
  72. Restoring a WordPress site
  73. Can’t install plugins after updating to WordPress 4.9
  74. Cron job emails blank
  75. WP-admin plugin installation via FTP silently fails on shared hosting
  76. database – multiple wordpress installations using same database – can they share plugin settings?
  77. How to install jquery dotdotdot plugin for WordPress?
  78. function of parent not working in childtheme
  79. What Are the Advantages of Using an mu-plugin
  80. Hook into install email
  81. Is there going to an issue running different features of WP site in different subdomains?
  82. How to tell if a script is being executed from a plugin, a theme or a child theme in WordPress?
  83. Moving to WordPress Premium versus a hosting provider
  84. How to add plugin activity in the menus?
  85. What possible reasons can cause my plugin not to be listed in the plugin search in the back-end of wordpress installs?
  86. How to Change MU/BuddyPress Group Blog New Installation Defaults [closed]
  87. No feedback when installing plugins or updating
  88. Why do I get this “peer’s certificate issuer not recognised” error when trying to install a theme?
  89. Can I install plugins manually on WP.com? [closed]
  90. Google analytics not working on WordPress
  91. Loading Canvas & WooCommerce translation file in child theme
  92. WordPress – connection information
  93. How do I activate my child theme, as I do not see it in developer tools
  94. Plugin installation works only with FTP – how to debug?
  95. Can’t modify plugin function
  96. Scripts don’t enqueue after removing plugin
  97. automation of plugin installations
  98. Issue with customizer and widget page
  99. ACF prugin for WooCommerce Shop Page
  100. Any plugin installation and update overwrite current theme