What potential issue with SQL connection is highlighted in the discussion?

The potential issue highlighted in the discussion is the lack of error handling for SQL connections. Without proper error handling, it can be difficult to diagnose and troubleshoot connection issues, leading to potential downtime or data loss. To solve this issue, it is important to implement error handling mechanisms to catch and handle any errors that may occur during the SQL connection process.

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} else {
    echo "Connected successfully";
}
?>