Are there any best practices to follow when using the include function in PHP?

When using the include function in PHP, it is important to follow best practices to ensure security and maintainability. One best practice is to always use the absolute path for the file you want to include to prevent directory traversal attacks. Additionally, it is recommended to check if the file exists before including it to avoid errors. 

<?php
$filename = '/path/to/file.php';

if (file_exists($filename)) {
    include $filename;
} else {
    echo 'File not found.';
}
?>

Keywords

include PHP file inclusion security code organization

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