Title: wpdb doesn't work
Last modified: August 20, 2016

---

# wpdb doesn't work

 *  Resolved [hikmatune](https://wordpress.org/support/users/hikmatune/)
 * (@hikmatune)
 * [13 years, 3 months ago](https://wordpress.org/support/topic/wpdb-doesnt-work/)
 * can someone please tell me why can’t get the output from this query?
 * <?php
    $user_count = $wpdb->get_var( “SELECT COUNT(*) FROM $wpdb->users” ); echo“
   <p>User count is {$user_count}</p>”; ?>
 * [http://wordpress.org/extend/plugins/php-code-widget/](http://wordpress.org/extend/plugins/php-code-widget/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * (@otto42)
 * WordPress.org Admin
 * [13 years, 3 months ago](https://wordpress.org/support/topic/wpdb-doesnt-work/#post-3458421)
 * You didn’t declare `global $wpdb;` first.
 *  Thread Starter [hikmatune](https://wordpress.org/support/users/hikmatune/)
 * (@hikmatune)
 * [13 years, 3 months ago](https://wordpress.org/support/topic/wpdb-doesnt-work/#post-3458446)
 * Thanks for the reply Samuel but still no luck. Anyway I could debug the process.
 *  Plugin Author [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * (@otto42)
 * WordPress.org Admin
 * [13 years, 3 months ago](https://wordpress.org/support/topic/wpdb-doesnt-work/#post-3458460)
 * There’s nothing to debug, I already gave you the correct answer. I know this 
   to be true, because I tested it before I gave you that answer.
 * You have to declare the $wpdb variable as a global before you use it in the block
   of code. Then your code will work.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘wpdb doesn't work’ is closed to new replies.

 * ![](https://ps.w.org/php-code-widget/assets/icon.svg?rev=992095)
 * [PHP Code Widget](https://wordpress.org/plugins/php-code-widget/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/php-code-widget/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/php-code-widget/)
 * [Active Topics](https://wordpress.org/support/plugin/php-code-widget/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/php-code-widget/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/php-code-widget/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * Last activity: [13 years, 3 months ago](https://wordpress.org/support/topic/wpdb-doesnt-work/#post-3458460)
 * Status: resolved