What considerations should be taken into account when deciding between using mysql_pconnect() and mysql_connect() for database connections in PHP?

When deciding between using mysql_pconnect() and mysql_connect() for database connections in PHP, consider the impact on server resources and performance. mysql_pconnect() establishes a persistent connection to the database, which can reduce connection overhead but may lead to resource exhaustion on the server. On the other hand, mysql_connect() creates a new connection for each request, which can impact performance but ensures better resource management.

// Using mysql_connect() for database connection
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = mysql_connect($servername, $username, $password);

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

mysql_select_db($dbname, $conn);