500 Internal error when using PHP version 7.3.25

  • Resolved thetoolman123

    (@thetoolman123)


    3 years, 11 months ago

    Hi there,

    I am currently running WordPress version 5.7 with PHP version 5.6. This is all running fine.

    However, I am trying to install phpbb in a sub directory and getting an error saying I need to use the latest version of PHP (version 7.1.3).

    When I update my PHP version to the latest version, it causes a 500 Internal error on the main WordPress website.

    Does anyone know why this is and how to get around it? I thought the latest WP version would work with the latest PHP version?

    Any advice would be great, thanks!

Viewing 2 replies - 1 through 2 (of 2 total)
  • Moderator Yui

    (@fierevere)

    永子

    WordPress by itself should run fine with all mentioned PHP versions.
    It is even recommended to have PHP 7.3 or 7.4 as they are the latest supported by upstream. PHP 8 is somewhat not yet ready and you may get errors and conflicts with plugins and themes.

    Speaking of conflicts, it seems you have one, with something ancient in your WP installation, very old theme or plugin, which are not PHP 7 ready.

    Check the PHP error log, or use debugging mode to figure out which plugin/theme cause the error.

    Debugging in WordPress


    Or you can disable/enable plugins one by one to find out the culprit,
    consider switching the theme as well, one of recent Twenty * themes will do.

    And of course you can try to update all plugins and used theme first.

    Thread Starter thetoolman123

    (@thetoolman123)

    Thanks for the reply.

    I have just tried again and it seems to e all ok, I just had to wait a few minutes for it to take effect!

    Thanks for your help

Viewing 2 replies - 1 through 2 (of 2 total)
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