How can developers ensure that the included file is properly integrated and does not cause any errors or disruptions in the PHP scripts?

To ensure that the included file is properly integrated and does not cause any errors or disruptions in the PHP scripts, developers can use the `require_once` function instead of `include` to include the file. This function will check if the file has already been included and will not include it again if it has. This helps prevent any potential issues with redeclaring functions or classes. 

<?php
require_once 'included_file.php';
// Rest of the PHP script
?>

Keywords

include require error handling PHP scripts integration

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