How can PHP error logs help in troubleshooting issues like the one described in the forum thread?

Issue: The forum thread describes a problem where a PHP script is failing to connect to a database due to incorrect database credentials being used. To troubleshoot this issue, PHP error logs can be used to identify the exact error message and pinpoint the location in the code where the connection is failing. By checking the error logs, developers can quickly identify the issue and correct the database credentials to establish a successful connection. Code snippet: 

// Set up database connection
$servername = "localhost";
$username = "root";
$password = "incorrect_password"; // Incorrect password causing connection failure
$dbname = "mydatabase";

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

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

Keywords

PHP error logs troubleshooting forum thread error types libraries

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