Why am I getting the \"Fatal error: Cannot use object of type mysqli_result as array\" error in my vbsubscribetouser.php file?

"Fatal error: Cannot use object of type mysqli_result as array"

Upon attempting to access your website, you encountered the enigmatic error message "Fatal error: Cannot use object of type mysqli_result as array." This conundrum arose in line 303 of the file vbsubscribetouser.php.

To delineate the source of this issue, let's scrutinize line 303:

<code class="php">if (in_array($followingdata['usergroupid'], explode("|", $vbulletin->options['subscribetouser_usergroups_cannot']))){</code>

Here, the code attempts to determine if the requested username is permissible to follow by checking if the user's group ID is present in the list of restricted user groups. The list of restricted user groups is obtained as an array by splitting the string stored in the configuration option subscribetouser_usergroups_cannot using the pipe ('|') character as a delimiter.

The root of the error lies in the fact that the $followingdata variable contains an object of type mysqli_result. An object of this type represents the result of a query executed against a database and cannot be treated as an array directly.

To rectify this situation, you need to fetch the actual data from the result object and store it in an array. This can be achieved using the fetch_assoc() or fetch_array() methods of the mysqli_result object.

Here's how you can modify the problematic line of code:

<code class="php">$followingdata = $result->fetch_assoc()</code>

or

<code class="php">$followingdata = $result->fetch_array(MYSQLI_ASSOC);</code>

By incorporating these modifications, you will ensure that the $followingdata variable contains the desired data in an array format, enabling you to proceed with the subsequent logical checks without encountering the aforementioned error.

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