What steps can be taken to prevent direct access to certain locations in PHP scripts and ensure proper security measures are in place?

To prevent direct access to certain locations in PHP scripts and ensure proper security measures, you can use the following steps: 1. Place sensitive files outside the web root directory to prevent direct access. 2. Use PHP sessions and authentication to control access to specific pages. 3. Implement input validation and sanitize user input to prevent security vulnerabilities. 

<?php
// Check if the script is being accessed directly
if(basename(__FILE__) == basename($_SERVER['SCRIPT_FILENAME'])) {
    header("Location: index.php"); // Redirect to a safe location
    exit;
}

// Your sensitive code here
?>

Keywords

.htaccess access control authentication security measures PHP functions

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