What are the potential pitfalls of not including header files in PHP scripts, and how can the "include" function be used to address this issue?

Not including header files in PHP scripts can lead to undefined function or variable errors, as the necessary functions or variables defined in the header file will not be available in the main script. To address this issue, the "include" function can be used to include the header file at the beginning of the PHP script, ensuring that all the required functions and variables are available. 

<?php
include 'header.php';

// Rest of the PHP script
?>

Keywords

header files include function PHP scripts potential pitfalls addressing issue

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