How can PHP developers ensure that their questions are clearly articulated and effectively communicated on online forums for better assistance from the community?

Issue: I am having trouble connecting to a MySQL database using PHP. Code snippet:

<?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);
}
echo "Connected successfully";
?>