Title: [Plugin: WP User Frontend] wpuf_list_users causing memory issues
Last modified: August 21, 2016

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# [Plugin: WP User Frontend] wpuf_list_users causing memory issues

 *  [Tom Dyer](https://wordpress.org/support/users/trymedo/)
 * (@trymedo)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/plugin-wp-user-frontend-wpuf_list_users-causing-memory-issues/)
 * I’m having trouble with this plugin running on a site with a LOT of users (40410
   users to be exact).
    WPUF is causing all ajax requests via admin-ajax.php to 
   fail due to the following error:
 * `[08-Jun-2014 21:29:19 UTC] PHP Fatal error: Allowed memory size of 67108864 
   bytes exhausted (tried to allocate 524288 bytes) in /Users/tom/Sites/frenchentree/
   htdocs/wp-content/plugins/wp-user-frontend/wpuf-functions.php on line 392`
 * The error is related to a function named `wpuf_list_users()` which as far as 
   I can tell, is only ever used to populate the dropdown in the wp-admin area when
   selecting an override for the post author. Is this function used anywhere else
   in the plugin and if not, can it be changed so that these types of requests check
   the following conditions before running?
    `if( !defined('DOING_AJAX') || DOING_AJAX
   == false) { ... }`
 * I could be mistaken, but from what I’ve found this would improve the code efficiency
   and solve the issue I’m having. I’d be happy to go through the

The topic ‘[Plugin: WP User Frontend] wpuf_list_users causing memory issues’ is 
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## Tags

 * [wpuf](https://wordpress.org/support/topic-tag/wpuf/)

 * 0 replies
 * 1 participant
 * Last reply from: [Tom Dyer](https://wordpress.org/support/users/trymedo/)
 * Last activity: [11 years, 11 months ago](https://wordpress.org/support/topic/plugin-wp-user-frontend-wpuf_list_users-causing-memory-issues/)
 * Status: not resolved

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