How can including files in PHP impact the formatting and layout of a webpage?

Including files in PHP can impact the formatting and layout of a webpage if the included file contains HTML markup or CSS styles that conflict with the existing layout. To solve this issue, it's important to ensure that the included files do not contain any conflicting styles or markup that could disrupt the layout of the webpage. 

<?php 
    include 'header.php';
    // Content of the webpage goes here
    include 'footer.php';
?>

Keywords

PHP including files formatting layout webpage

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