What are potential pitfalls or security concerns when implementing an age verification system using PHP?
One potential pitfall when implementing an age verification system using PHP is the possibility of users manipulating the input data to bypass the verification process. To mitigate this risk, it is essential to validate the input data thoroughly and ensure that the user's age is accurately verified before granting access to age-restricted content.
// Sample PHP code snippet for validating age input
$age = $_POST['age'];
// Check if the age input is a valid number
if (!is_numeric($age)) {
die("Invalid age input");
}
// Check if the user is above the minimum age limit
$min_age = 18;
if ($age < $min_age) {
die("You must be at least 18 years old to access this content");
}
// Age verification successful, grant access to content
echo "Age verification successful. You can access the content.";