// Check if result is empty if ($result->num_rows == 0) die("No results found");

$id = $_GET['id']; $query = "SELECT * FROM products WHERE id = " . $id; $result = mysqli_query($conn, $query);

Historically, many sites using php?id= were poorly coded. If a developer didn't "sanitize" the input—meaning they didn't check if the "1" was actually a number or a piece of malicious code—the site became vulnerable to .

I'm assuming you're looking for a write-up on how to create a high-quality PHP script that uses a URL with an id parameter, specifically inurl:php?id=1 . Here are some general guidelines:

). If the server isn't "sanitizing" the input, it might execute that command, potentially revealing the entire contents of the database or allowing the attacker to bypass login screens [1, 5, 7]. 4. Legal and Ethical Note

Always use PDO or MySQLi with prepared statements to prevent security vulnerabilities.

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