What are some best practices for handling security levels and user permissions in PHP when retrieving and displaying data?

When handling security levels and user permissions in PHP, it is important to ensure that users only have access to data that they are authorized to view. One way to achieve this is by implementing role-based access control (RBAC) where different users are assigned specific roles with corresponding permissions. This can be done by checking the user's role and permissions before retrieving and displaying data. 

// Check user's role and permissions before retrieving and displaying data
$userRole = getUserRole(); // Function to get user's role
if ($userRole === 'admin') {
    // Retrieve and display sensitive data
} elseif ($userRole === 'user') {
    // Retrieve and display non-sensitive data
} else {
    // Handle unauthorized access
    echo "You do not have permission to view this data.";
}

Keywords

SQL injection prepared statements password hashing session management CSRF protection

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