How can PHP developers troubleshoot connection issues when accessing a remote database server?

PHP developers can troubleshoot connection issues when accessing a remote database server by checking the database credentials, ensuring the server is accessible from the PHP server, and verifying that the necessary PHP extensions are enabled. They can also use error handling techniques such as try-catch blocks to catch and handle any connection errors that may occur. 

<?php
$servername = "remote_server";
$username = "username";
$password = "password";
$database = "database";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$database", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully";
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}
?>

Keywords

PHP database server connection issues troubleshooting remote access

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