In what scenarios is it recommended to use require over include in PHP programming?

When you want to include a file in PHP and it is essential for the script to continue running, you should use require instead of include. Require will cause a fatal error if the file is not found, halting the script execution, while include will only produce a warning and allow the script to continue. This ensures that the necessary file is loaded before proceeding with the rest of the script. 

<?php
require 'config.php'; // This will halt the script if config.php is not found
// Rest of the script
?>

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require include PHP programming scenarios recommended

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