PHP $_session is not work in wordpress

Yes, you must use a small change for use session in WordPress.

if ( ! session_id() )
session_start();

Better you use a custom function 

function my_start_session() {

@session_cache_limiter('private, must-revalidate'); //private_no_expire
@session_cache_expire(0);
@session_start();
}

*Please edit, I write from a mobile

Related Posts:

  1. Find out what is using PHP sessions in WordPress
  2. Can we completely remove the WordPress Sitemaps (WordPress 5.5)?
  3. How To Ignore a Filter On Applying Filter the Content In a Function
  4. post expire after x days
  5. Accessing post’s meta data based on user’s click of a post
  6. How do I “get the next 10 posts after post_id == x”?
  7. Preg Match All doesn’t Allow echo first character for WordPress Taxonomy Tags
  8. External RSS feed to WordPress Portfolio
  9. Redirect to another page using contact form 7? [closed]
  10. pagination on data fetched using SQL query
  11. How to delete all trashed item in one-go
  12. Allowing users to Sign-up > Login > Post articles that need approval
  13. How do I add $_SESSION[”] to my wordpress page?
  14. Creating an admin meta box to save post as pending
  15. Get data from wp_posts of mysql in to variables of wordpress-php script
  16. WordPress Stats Plugin: Display Post Views [closed]
  17. WP Insert Post If user refreshes override new post
  18. Strange admin-ajax / CSS / $_SESSION issue
  19. Plugin or ways to limit number of users logging in the website,
  20. WordPress is redirecting me to homepage
  21. WordPress hide post from custom post-type on a single page
  22. How can I see $post object in frontend from functions.php?
  23. Prefix WordPress Taxonomy Tags With Hashtag Symbol Like Twitter
  24. Failed to load resource: the server responded with a status of 500 () post.php
  25. How to echo a PHP Code After the Content
  26. Displaying friend’s posts only
  27. Trending Tags based on post views
  28. Enforce conditions only for draft posts using WyPiekacz, ignore pending and published posts
  29. Redirect a specific User role not admins automatically to view the post that they just updated
  30. When unit testing a plugin, does the plugin need to be in the wp-content/plugins directory of the WordPress tests install?
  31. How can I prevent a plugin from updating unless it’s minimum PHP version is met?
  32. How Do I Use The WordPress Plugin Posts 2 Posts by Scribu?
  33. Determining where fopen() is writing files when used from WordPress AJAX call [closed]
  34. How Restrict access to admin dashboard by specific static ip?
  35. How to get images from EDD post?
  36. How to change ID of an attachment in wp_posts and its related tables correctly?
  37. Add multiple attributes to product from php
  38. Sanitizing, Validating and Escaping in WordPress (Plugin)
  39. How to initialize something in unit test before the init hook being called?
  40. Add category to body class
  41. Plugin Development sqlite or WordPress’ database
  42. How to review WordPress website php version compatibility?
  43. Download any file after submitting a form [closed]
  44. Pulling data from custom plugin settings using PHP shortcode and Javascript
  45. woocommerce 3.2.1 not sending order notification emails
  46. Cron job not firing
  47. Add a CSS class based on categroy id to archive pages
  48. Outbound link autometic converted into linkdirect , and not opening
  49. Access WordPress data from external PHP application.
  50. Problem with PHP wordpress, Undefined index: in C:\xampp\htdocs\wordpress\wp-content\plugins\epoch\classes\core.php on line 190 [closed]
  51. Contributive page where people logged in can write
  52. WP Plugins – Use includes to display page content
  53. Recent posts per category loop?
  54. Finding the screen id of a page generated with add_menu_page
  55. WooCommerce – set session with new cart item meta when updating cart item quantity [closed]
  56. Set Multiple Meta Values as an Array Using dispatch( ‘core/editor’ ).editPost() Call in Gutenberg/JS
  57. Control page content visibility based on URL parameter
  58. WooCommerce Shopping Cart Not Initially Showing Products [closed]
  59. Plugin not working & permalink erorr after upgrade to php 7x on Nginx
  60. download button for audio file in post [closed]
  61. Print posts category or tag as a formatted journal
  62. How to translate wordpress error message
  63. Override a Plugin Function
  64. All custom widgets are not showing in widget area at the same time
  65. Add key and value to an array in another file
  66. Post deleted in trash [closed]
  67. How to relate 3 wordpress components with each other (Create database relationships)
  68. problem with register_activation_hook in plugin
  69. Create “new pages” within the admin section of plugin
  70. More gentle way to hook WordPress custom url
  71. What snippet do I need to type to show my ACF field show up on my theme?
  72. How to Call Specific .PHP file on add_submenu_page selection in Plugin Development?
  73. How to properly replace the_content with the html in a php file?
  74. Is there a way to make [Table Of Content] plugin while not using revision data?
  75. How to Add text value in Automatically in this conditions?
  76. page duplication on wordpress that wont stop
  77. Using sessions or an alternative in a plugin
  78. Hide content for specific users with id
  79. adding dynamic/multiple slug values in ‘option_none_value’
  80. Problem with Date translation in WordPress
  81. How to assign a specific service to a specific provider based on location
  82. 500 Internal server error wp_handle_upload_prefilter
  83. Can’t access 3rd party API, code works on local server but not on wordpress
  84. Compare Ajax Data Results
  85. How can I make the search bar in my wordpress site search all of the pages rather than just the blog posts?
  86. Nested DIV’s across functions in PHP, do not seem to work
  87. Every time I use wp_get_current_user() my plugin breaks
  88. How to force regenerate thumbnails in WordPress posts?
  89. resizes images on the fly
  90. get_option return incorrect values
  91. I created a custom form in HTML/CSS and now I need it to submit … should I create custom PHP or is there a plugin I can use?
  92. How to use shortcode of any plugin to show it visually where i want?
  93. Saving plugin data returns “You do not have sufficient permissions to access this page.”
  94. WordPress not updating post or disable plugin instead a white page appear
  95. Internationalization of Blog Posts
  96. Issues with Post 2 Post Plugin
  97. private functions in plugins
  98. Load my plugin before cache
  99. wp_insert_post() get Fatal Error from Plugin
  100. plugin doesn’t retrieve data from database