What common mistakes do beginners in PHP often make when creating forms?

One common mistake beginners make when creating forms in PHP is not properly sanitizing user input, leaving the application vulnerable to security risks such as SQL injection attacks. To solve this issue, always sanitize user input using functions like htmlspecialchars() or mysqli_real_escape_string() before processing it in the application. 

// Example of sanitizing user input in a PHP form
$name = htmlspecialchars($_POST['name']);
$email = htmlspecialchars($_POST['email']);
$message = htmlspecialchars($_POST['message']);

Keywords

validation security input sanitization form handling error handling

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