In the context of the provided code, what improvements could be made to enhance the database connection process under PHP7?

The issue with the provided code is that it uses the deprecated `mysql_connect` function, which is not supported in PHP7. To enhance the database connection process under PHP7, we should switch to using `mysqli_connect` or PDO for database connections. These functions provide better security, improved performance, and are compatible with PHP7. 

// Improved database connection using mysqli
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = mysqli_connect($servername, $username, $password, $dbname);

if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}

Keywords

PHP7 database connection PDO error handling prepared statements

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