In what scenarios would it be advisable to avoid using PHP include for SSL certificate usage?

When using SSL certificates in PHP, it is advisable to avoid using PHP include for security reasons. This is because including files using PHP include can expose sensitive data, such as private keys and passwords, to potential security risks. To securely use SSL certificates in PHP, it is recommended to store sensitive information in a separate configuration file outside of the web root directory and then include it in the PHP script using the require_once function.

<?php
// Load SSL certificate configuration from a separate file
require_once('/path/to/ssl_config.php');

// Use the SSL certificate configuration in your PHP script
// For example:
$ssl_cert = $ssl_config['ssl_certificate'];
$ssl_key = $ssl_config['ssl_key'];