Title: Array handling with post_meta
Last modified: August 21, 2016

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# Array handling with post_meta

 *  [projectfuturism](https://wordpress.org/support/users/projectfuturism/)
 * (@projectfuturism)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/array-handling-with-post_meta/)
 * Hi all,
 * I’m trying to write some functionality that allows users to ‘favourite’ a post,
   so the way I was thinking was to create custom **post_meta**, which holds an 
   array of users that have ‘favourited’ the post. They click a star and if the 
   star is clicked, their user ID is stored in the array, and if they unfavourite,
   then their user ID is removed from the array. Doing reading of PHP docs I have
   attempted to use **array_push**.
 * The code I have written is as follows:
 *     ```
       //define post variables
         $starred_issue_ID = $_REQUEST['post_id'];
         $starred_user_ID = $_REQUEST['starred_user_ID'];
         $starred_new_value = $_REQUEST['starred_new_value'];
   
         $starred_users = get_post_meta($starred_issue_ID,'issue_starred');
   
         if (($starred_new_value == 1) and ($starred_user_ID != in_array($starred_users))) {
             $starred_users_new = array_push($starred_users,$starred_user_ID);
         }
   
         //begin update process
         update_post_meta($starred_issue_ID, "issue_starred", $starred_users_new);
       ```
   
 * However whenever I do this the result is as follows:
 * Array ( [0] => 2 ). And no matter which user I use to favourite the post with,
   it will come up with that. Does anyone have the correct way of doing this?? Once
   I work this out I also need to work out how to detect if a user has already favourited
   and if they have and want to unfavourite, remove their user ID from the array….
 * Ideas???

The topic ‘Array handling with post_meta’ is closed to new replies.

 * 0 replies
 * 1 participant
 * Last reply from: [projectfuturism](https://wordpress.org/support/users/projectfuturism/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/array-handling-with-post_meta/)
 * Status: not resolved

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