Title: PHP WARNING Function name “__fs” is discouraged;
Last modified: May 14, 2019

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# PHP WARNING Function name “__fs” is discouraged;

 *  Resolved [yosefeliezrie](https://wordpress.org/support/users/yosefeliezrie/)
 * (@yosefeliezrie)
 * [7 years ago](https://wordpress.org/support/topic/php-warning-function-name-__fs-is-discouraged/)
 * When doing a check for PHP 7.2 + Compatibility using the PHP Compatibility Checker
   Plugin from WP Engine the following warning was displayed. Unsure if this happens
   in previous versions of PHP
 *     ```
       FILE:/public_html/wp-content/plugins/foogallery/foogallery.php
   
       175 | WARNING | Function name "__fs" is discouraged; PHP has reserved all method names with a double underscore prefix for future use.
       ```
   

Viewing 1 replies (of 1 total)

 *  [phillcoxon](https://wordpress.org/support/users/phillcoxon/)
 * (@phillcoxon)
 * [6 years, 9 months ago](https://wordpress.org/support/topic/php-warning-function-name-__fs-is-discouraged/#post-11865669)
 * Thanks for reporting this – it’s been passed on to the development team to check(
   if they haven’t already resolved it).

Viewing 1 replies (of 1 total)

The topic ‘PHP WARNING Function name “__fs” is discouraged;’ is closed to new replies.

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## Tags

 * [compatibility](https://wordpress.org/support/topic-tag/compatibility/)
 * [php](https://wordpress.org/support/topic-tag/php/)
 * [PHP compatibility](https://wordpress.org/support/topic-tag/php-compatibility/)

 * 1 reply
 * 2 participants
 * Last reply from: [phillcoxon](https://wordpress.org/support/users/phillcoxon/)
 * Last activity: [6 years, 9 months ago](https://wordpress.org/support/topic/php-warning-function-name-__fs-is-discouraged/#post-11865669)
 * Status: resolved