Warning with PHP 8.1: missing variable initialisation

  • Recently, I updated my WP installation to PHP 8.1. Then I checked my website and found a PHP warning:

    Warning: Undefined variable $page_name in /homepages/24/d13366683/htdocs/e-script/wp-content/plugins/blog-introduction/blog-introduction.php on line 116

    (Same warning came for line 123, too.)

    The reason for this is an omission in your code: I suggest that you include $page_name = FALSE; after code line 97 (} else {). Otherwise the variable $page_name will not be initialised, if the calling page is not a WP archive page.

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