Title: Problem PHP
Last modified: January 25, 2024

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# Problem PHP

 *  Resolved [Albert](https://wordpress.org/support/users/trust17/)
 * (@trust17)
 * [2 years, 4 months ago](https://wordpress.org/support/topic/problem-php-5/)
 * Hello!
 * I have seen that upgrading PHP version to 8.1 gives some problems if you have
   wordpress debug enabled:
 * You can see it here: [https://plugintests.com/plugins/wporg/mail-mint/latest](https://plugintests.com/plugins/wporg/mail-mint/latest)
 * Basically I get this error: Deprecated: Constant FILTER_SANITIZE_STRING is deprecated
   in /var/www/vhosts/yourwebsite.com/sub.yourwebsite.com/wp-content/plugins/mail-
   mint/app/MrmCommon.php on line 187 (184 to 187)
 * I guess you are aware of this error, is there any quick solution?
   My WordPress
   is all up to date and up to date.
 * Thank you very much!
    -  This topic was modified 2 years, 4 months ago by [Albert](https://wordpress.org/support/users/trust17/).

Viewing 1 replies (of 1 total)

 *  Plugin Support [Rifat Ara Chowdhury](https://wordpress.org/support/users/rifat2104/)
 * (@rifat2104)
 * [2 years, 4 months ago](https://wordpress.org/support/topic/problem-php-5/#post-17374204)
 * Hi [@trust17](https://wordpress.org/support/users/trust17/) , We’ve worked on
   a solution to fix this and it is currently in the testing phase.
 * Hopefully we’ll release the fix next week. Thank you.

Viewing 1 replies (of 1 total)

The topic ‘Problem PHP’ is closed to new replies.

 * ![](https://ps.w.org/mail-mint/assets/icon-256X256.gif?rev=2927321)
 * [Mail Mint - Email Marketing, Newsletter, Email Automation & WooCommerce Emails](https://wordpress.org/plugins/mail-mint/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Rifat Ara Chowdhury](https://wordpress.org/support/users/rifat2104/)
 * Last activity: [2 years, 4 months ago](https://wordpress.org/support/topic/problem-php-5/#post-17374204)
 * Status: resolved