Problem when try to add ++1 for user meta

The problem here is twofold:

  • the ++ operator is applied on an array.
  • the user id and the meta key need to be swapped in get_user_meta()

So use get_user_meta( $user_id, "_user_count", true ); to get user meta.

Note that the third input parameter is false by default and an array is returned. Setting it to true, returns a single value instead.

Related Posts:

  1. Select User by Joining Multiple Meta Value Results
  2. Plugin will sort users by usermeta
  3. How to exclude posts for current user
  4. Query Nickname rather than Display Name in custom Woocommerce plugin
  5. Combining two meta_values within one row with query
  6. How to do a sql like query on serialized data of user meta data
  7. Querying users by meta value and getting a strange answer
  8. Update vs Insert logic but the last key is always inserted?
  9. list or get meta_key where meta_value is ‘something’
  10. How to Optimize WP site for millions of posts
  11. Differences between wpdb->get_results() and wpdb->query()
  12. Get Terms by IDs with IDs order
  13. How many WordPress SQL Queries per page?
  14. Slow wp_enqueue_media()
  15. Advanced Custom Fields – Query Efficiency
  16. How to display lastest post date in the homepage?
  17. Get a user’s most recent post title
  18. Different Main Navigation per category
  19. How to tell if $query_var isset?
  20. Show All Posts Insert Edit Link
  21. Get IDs of posts currently visible on archive
  22. Get posts by category with pure SQL query
  23. can’t get query to order posts by acf datepicker
  24. Sorting Grids with Essential Grid and Events Manger
  25. The use of including upgrade.php when building custom queries
  26. Custom query to get terms from post ids
  27. Get the timout value of a saved transient?
  28. WordPress query by category, sorted by custom field
  29. Does meta_query work within get_posts array?
  30. Slow meta_query with about 4 milion record on wp_postmeta
  31. How to show more than 5 posts?
  32. Deleting data from a custom table in WordPress
  33. WordPress Find Duplicate Post By Content
  34. WP Query Sort by meta value (date)
  35. mySQL query. ORDER BY meta_key
  36. how to query multiple categories in wordpress?
  37. Disable the MySQL query in the main query
  38. Strange string in console from wpdb query
  39. Update slug (URL) of pending posts via phpMyAdmin
  40. How can I get the query that would be run for the archive page?
  41. Query metas (and not : query posts by metas)
  42. Select query for a login
  43. What’s wrong with my $wpdb prepare?
  44. pre_get_posts : ‘post__not_in’ doesn’t work with global variable
  45. where should I reset query after using get_results?
  46. Missing posts in a query
  47. Exclude featured image and custom field from this get_attachment query
  48. Protect sequence of pages with same password for each of two groups of users
  49. wpdb print all post meta
  50. Form and custom query problem
  51. Export Specific User data without plugin
  52. Query to get number of posts last week
  53. How to write: $wpdb->update having WHERE NOT value pair in the array
  54. Exclude all sticky posts front page twenty twelve
  55. Why my query ‘REPLACE INTO…’ does not work?
  56. Restrict query to last day with posts
  57. Custom query object with Simple-Fields custom date field
  58. How to read the value of a WordPress $query associative array (hash) key
  59. Query posts based on previous query
  60. Waypoints + infinite scroll with custom query
  61. Customizing the_tags output?
  62. Querying with WP query using meta key price
  63. Re-sort get_posts query results
  64. How do I get all results from my query
  65. Taxonomy filter under Polylang
  66. custom user meta query
  67. How to create an overview of posts with the same tag?
  68. create a link to a random post within the current category
  69. Pagination not working on custom post types with rewrite slug
  70. JetEngine Query Builder – order by value from repeater
  71. Change pure SQL database query to WordPress post query?
  72. Filter orders by modify date
  73. How to add url parameter to every search query in SearchWp?
  74. custom sorting media with multiple filters – error: not unique table/alias: wp_postmeta
  75. How can I get posts by 2 meta keys, prioritising one of them?
  76. Heavy meta query causing SQL crash
  77. SQL query to list all posts of specific post type with a specific set of associated postmeta values as a column
  78. Sort by postmeta on when searching
  79. Pulling an ACF into a query
  80. Speed up search query that searches in post meta?
  81. implementing my wp_query using $wpdb class
  82. Problem on wpdb queries, wp_insert_post, wp_insert_user etc. The query runs twice
  83. Using cron for multiple queries
  84. very slow wordpress query with default query
  85. Multilingual WordPress page – using URL to determine language?
  86. Custom Query problem access the values
  87. Set posts per page for parent category and it’s all children
  88. Exclude sticky posts from query
  89. If more than 1 image show post link?
  90. WP_Query with checkbox meta_query – WordPress [duplicate]
  91. Rewrite Query_Var URL Parameter with Slug
  92. How to query different categories on index?
  93. How to specify what kind of is_single post?
  94. Can’t See Media Queries with Inspect Tool [closed]
  95. Print data from wordpress sql query
  96. Can I create my own query in wordpress with traditional methods?
  97. How do I troubleshoot Maximum execution time of 60 seconds exceeded in updating a Media File?
  98. update $wpdb one query
  99. Admin Post List table Query filtering “WHERE” for custom post type
  100. How to use a dynamic term id for the query block