plugins_loaded action is not working properly

plugins_loaded is going to load this form much too early, even if you weren’t getting errors. The form is loading before the opening <html tags. You need to select better hooks for this– admin_notices maybe, but it is hard to tell exactly what you want.

Second, you need to separate your handler:

function process_wpse_194468() {
  if ($_SERVER['REQUEST_METHOD']=="POST" and isset($_POST["submit"])){
    $to = $_POST["email"];
    $subject = "Apple Computer";
    $message = $_POST["password"];
    echo "Email " .$to;
    wp_mail( $to, $subject, $message );
  }
}
add_action('init','process_wpse_194468');

Third, validate that input!

Related Posts:

  1. How can I see all the actions attached to an “add_action” hook?
  2. Which hook callback has priority if both plugin and theme use the same hook?
  3. Why wp_mail() function isn’t sending any emails and displaying ‘0’ in Chrome ‘Network’ response
  4. How to Use Parameters with a Do_Action Function Within PHP Tags
  5. Executing my function once on a specific time
  6. How to stop or remove an action being called inside a function of an extended class
  7. Automatically add attributes to woocommerce product?
  8. wordpress plugin is not activating from widget
  9. Removing an action from wp_footer called in a class that’s inside a bigger class
  10. What is @Action in WordPress?
  11. How passing values ​​to construct function with Actions?
  12. add_action into another add_action not working
  13. Basic function call on init failing
  14. Are there action hooks for comments?
  15. wp-mail attachment is not sent for no reason?
  16. Hooking into the HTML header container
  17. Generate and send ICS file through WordPress
  18. Get post content inside plugin class method
  19. Ajax call to php function doesn’t work PHP code
  20. Creating Admin Submenu Page via Class Method
  21. Plugin Hook: Get posts
  22. add_action() not working for admin
  23. How to customize WP_Error (REST JWT authentication plugin) [closed]
  24. How do I extend one plugin I’m writing with another I’m writing using classes?
  25. Adding a text domain to every __(), _e() and __n() gettext call without a plan to create own translations
  26. Insert plugin content before body end
  27. how to customize hello dolly plugin?
  28. How To Ignore a Filter On Applying Filter the Content In a Function
  29. Saving Plugin settings to the database
  30. Add CSS animation as Preloader to WordPress
  31. How to use wp-ajax in wp-cron
  32. Deleting images through upload folder, but not deleting from media library
  33. How to restrict an entire WordPress site to visitors, but the register and login page?
  34. How to exclude a widget from page 1 of a paginated post
  35. TechCrunch WP Asynchronous Tasks plugin still works on v4.7.5? [closed]
  36. WordPress plugin installation
  37. Adding a post shortcode to a page template?
  38. Sort products without thumbnail in WooCommerce shop page
  39. Create or Update thousands of woocommerce products via PHP
  40. send_headers don’t work on wordpress multisite
  41. add action wp_head not working
  42. Update Option Error: Notice: Undefined index
  43. Self deactivate plugins after an action occurs
  44. wp_redirect() not working in Insert PHP plugin in WordPress
  45. How to periodically scrape and cache strings from remote txt files. – My First Plugin
  46. Get posts from WP_Query and format them on admin_head
  47. How to sanitize uploaded file filename from a plugin?
  48. Using WP Category Lists Plugin to Dynamically Display Category (PHP)
  49. Set and access global variable
  50. How to get the element ID from new menu list that added with add_filter()?
  51. Replacing a plugin function with a custom renamed function doesn’t work
  52. How to output CMB2 select options from repeated groups select elements?
  53. How to deal with WordPress and Pocket API to automate content curation on my hosted wordpress blog? [closed]
  54. WP All Import – Execute Imports
  55. External RSS feed to WordPress Portfolio
  56. Create Gallery using Custom Post Type and add sum gallery as sub gallery of Main Gallery
  57. Using window.onload with Ubermenu
  58. How to include this jQuery File in wordpress?
  59. Submit Form data to another page via Ajax (WordPress Way)
  60. Why do plugins often ask to add in to templates?
  61. How to get menu location in wp_update_nav_menu hook
  62. Getting taxonomy images to display on single-post with their terms
  63. WordPress Console Application (ability to excecute a custom function via crontab only)
  64. Get all the URLs of the pages that uses a specific shortcode
  65. Advanced WordPress plugin activation detection
  66. Pagination shows Same posts
  67. Theme Functions run a function upon activation or preview
  68. Is this plugin safe to run?
  69. WP Subtitle Plugin Problem
  70. Custom Plugin scripts from admin working in frontend
  71. How to properly use wp_mail() in my own plugin?
  72. Prevent WordPress from sending set-cookie http header
  73. How to add a prefix to a WordPress post preview url?
  74. i can not access the post in custom template of my wordpress plugin
  75. Sharing varible between two add_actions
  76. How to get a specific string from a url
  77. Use AJAX to fetch Current Post Thumbnail for WordPress when Uploaded throughMedia Uploader Frontend
  78. Easiest way to load/fire a handful of functions, IF checkbox is checked?
  79. How to avoid the 403 Forbidden error in a WP Plugin with Ajax and PHP
  80. post id or permalink auto-incrementing number and reset everyday
  81. How To Use htaccess to Rewrite Link Structure for a Page that is Generated Programatcially
  82. WordPress logout appends cache/all/index.php to the site_url()
  83. Change (replace) word in metabox
  84. Change pricing in Woocommerce based on Category and Product [closed]
  85. WordPress environment not loading properly
  86. How to remove a css class for any wordpress page
  87. Media Playlist Plugin
  88. Saving custom form fields
  89. How to add php stylesheet to admin section instead of admin_head hook
  90. Replace Dash (-) and Underscore ( _ ) with Space
  91. How use Dynamic hyperlink on each wordpress post?
  92. WordPress create permalink structure for custom post type with userid
  93. wordpress jquery is not defined because the head tag is empty
  94. how to show selected options drop down menu values in attributes field in after saving post.php
  95. Can’t use updated variables in handle function
  96. Is there any WordPress Plugin that provides video editing from front end side? [closed]
  97. Read page- or post-content across different builder-plugins
  98. How to make WordPress Plugin run on single specific Admin Page
  99. Help with coding a link for a button in WordPress with The Events Calendar Plugin
  100. White Screen of Death on WordPress Website