What are some common mistakes made by PHP beginners when trying to implement dynamic sorting functionality in a web application?

One common mistake made by PHP beginners when implementing dynamic sorting functionality is not properly sanitizing user input, which can lead to SQL injection vulnerabilities. To solve this issue, always use prepared statements or parameterized queries to prevent malicious input from affecting your database queries. 

// Example of using prepared statements for dynamic sorting functionality
$sortColumn = isset($_GET['sort']) ? $_GET['sort'] : 'default_column';
$sortOrder = isset($_GET['order']) ? $_GET['order'] : 'ASC';

$stmt = $pdo->prepare("SELECT * FROM table_name ORDER BY $sortColumn $sortOrder");
$stmt->execute();
$results = $stmt->fetchAll();

Keywords

PHP dynamic sorting web application beginners mistakes

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