PHP Fatal Errors in frontend.php Causing 405 Server Errors

  • rodono419

    (@rodono419)


    6 months, 2 weeks ago

    I’m experiencing an issue with GTM4WP that’s causing my hosting provider (WPEngine) to serve 405 error pages instead of the WordPress login page when your plugin is active.

    The Root Cause: WPEngine’s server logs show PHP fatal errors in your plugin’s frontend.php file:

    1. Line 636: Undefined array key “http_user_agent”
    2. Line 639: Undefined variable $page
    3. Additional error: Trying to access array offset on value of type bool

    File: /wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php

    Environment:

    • WordPress: 6.7.2
    • GTM4WP Version: 11.16.1 
    • Hosting: WPEngine
    • PHP Version: 8.2

    Impact: These PHP errors cause the server to return 405 responses.

    Steps to Reproduce:

    1. Activate GTM4WP on PHP 8.2
    2. Visit wp-login.php
    3. Server logs show the fatal errors above

    The errors disappear when the plugin is deactivated.

    Thanks for the great plugin. Hoping for a fix in the next update!

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