What are the implications of using mysql_pconnect() instead of mysql_connect() in PHP for database connections?

Using mysql_pconnect() can lead to potential issues with resource management and scalability in PHP applications. It creates persistent connections to the database server, which can quickly exhaust the available connections and lead to performance degradation. It is recommended to use mysql_connect() instead for establishing non-persistent connections to the database.

// Establishing a non-persistent connection using mysql_connect()
$servername = "localhost";
$username = "username";
$password = "password";
$database = "dbname";

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

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

mysql_select_db($database, $conn);