Title: PHP 7 Compatibility issue?
Last modified: March 29, 2019

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# PHP 7 Compatibility issue?

 *  Resolved [seanking2919](https://wordpress.org/support/users/seanking2919/)
 * (@seanking2919)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/php-7-compatibility-issue-4/)
 * Hey guys,
 * So I’m looking to update to PHP 7 specifically in the next coming days. And I
   got these warnings when looking at the compatibility tests done with the WordPress
   PHP Compatibility Test plugin:
 * In the file plugins/responsive-menu/vendor/twig/twig/lib/Twig/Compiler.php
    ———————————————————————————————————-
   FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE ———————————————————————————————————-
   218 | WARNING | INI directive ‘mbstring.func_overload’ is deprecated since PHP
   7.2 ———————————————————————————————————-
 * And in the file plugins/responsive-menu/vendor/twig/twig/lib/Twig/Lexer.php
    ——————————————————————————————————-
   FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES ——————————————————————————————————-
   87 | WARNING | INI directive ‘mbstring.func_overload’ is deprecated since PHP
   7.2 91 | WARNING | INI directive ‘mbstring.func_overload’ is deprecated since
   PHP 7.2 ——————————————————————————————————-

Viewing 1 replies (of 1 total)

 *  [Peter Featherstone](https://wordpress.org/support/users/peterfeatherstone-1/)
 * (@peterfeatherstone-1)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/php-7-compatibility-issue-4/#post-11369439)
 * Hey there,
 * I can only assume they are false positives. I have been running PHP 7 for at 
   least a year now with no issue and all my testing is done with PHP 7.
 * In addition, those are only warnings, not errors and come from the highly popular
   twig library.
 * All in all you are fine to upgrade to PHP 7.
 * All the best
 * Peter

Viewing 1 replies (of 1 total)

The topic ‘PHP 7 Compatibility issue?’ is closed to new replies.

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## Tags

 * [php-7](https://wordpress.org/support/topic-tag/php-7/)

 * 1 reply
 * 2 participants
 * Last reply from: [Peter Featherstone](https://wordpress.org/support/users/peterfeatherstone-1/)
 * Last activity: [7 years, 2 months ago](https://wordpress.org/support/topic/php-7-compatibility-issue-4/#post-11369439)
 * Status: resolved