What are some common pitfalls when using PHP scripts for categorizing items?

One common pitfall when using PHP scripts for categorizing items is not properly sanitizing user input, which can leave your application vulnerable to SQL injection attacks. To solve this issue, always use prepared statements or parameterized queries to interact with your database to prevent malicious input from being executed as SQL commands. 

// Example of using prepared statements to safely query the database
$stmt = $pdo->prepare("SELECT * FROM items WHERE category = :category");
$stmt->bindParam(':category', $category);
$stmt->execute();
$results = $stmt->fetchAll();

Keywords

SQL injection XSS attacks file inclusion vulnerabilities insecure file uploads lack of input validation

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