What changes in PHP 5.0.1 could potentially cause issues with form submissions to a database?

In PHP 5.0.1, the default value of the `register_globals` directive was changed to off, which could potentially cause issues with form submissions to a database if the form data is not properly handled. To solve this issue, you should explicitly retrieve form data using `$_POST` or `$_GET` superglobals instead of relying on register_globals. 

// Retrieve form data using $_POST superglobal
$username = $_POST['username'];
$password = $_POST['password'];

// Sanitize input data before using in database query
$username = mysqli_real_escape_string($connection, $username);
$password = mysqli_real_escape_string($connection, $password);

// Perform database query using sanitized data
$query = "INSERT INTO users (username, password) VALUES ('$username', '$password')";
mysqli_query($connection, $query);

Keywords

PHP 5.0.1 form submissions database changes issues

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