PHP PHP require PHP Include and Require Files The include command simply takes all the text that exists in the specified file and copies it into the file that uses the include command. How to send a variable from one PHP script to another Since you need the tags ⦠// This alert will export in the main file. The file in the site root then can include other files, a simply way of auto-including files even if a service provider does not support it, and also define a variable such as âSITE_ROOTDIRâ, which can then be used later. Also, import multiple CSS files in the main HTML file or in the main CSS file. php by JSMD on May 13 2020 Donate . My include() and require() are not activated right away they require the use of a function from them to run meaning my script only runs if ⦠require_once WP_CONTENT_DIR . Then include the .h file and it should all work. How to include() all PHP files from a directory - GeeksforGeeks Include files in functions.php - WordPress Development Stack ⦠In this tutorial you will learn how to include and evaluate the files in PHP.