In PHP development, what are the recommended methods for linking to specific database entries without using query parameters in the URL?

When linking to specific database entries in PHP without using query parameters in the URL, it is recommended to use unique identifiers such as IDs or slugs to retrieve the desired data from the database. This helps prevent SQL injection attacks and ensures a more secure and reliable method of accessing database entries.

// Example of linking to a specific database entry using ID
$id = 1; // Unique identifier for the database entry
$link = "view_entry.php?id=" . $id; // Link to view_entry.php with the ID parameter

// Example of linking to a specific database entry using slug
$slug = "example-entry"; // Unique slug for the database entry
$link = "view_entry.php?slug=" . $slug; // Link to view_entry.php with the slug parameter