What steps should be taken to troubleshoot and debug PHP scripts that are generating database-related errors?

To troubleshoot and debug PHP scripts generating database-related errors, start by checking the database connection credentials, ensuring the database server is running, and verifying the SQL queries for errors. Use error handling techniques like try-catch blocks and error reporting functions to identify and resolve any issues. Additionally, logging errors to a file can help in diagnosing the problem. 

<?php

// Check database connection credentials
$servername = "localhost";
$username = "username";
$password = "password";
$database = "dbname";

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

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

// Run SQL query
$sql = "SELECT * FROM table";
$result = $conn->query($sql);

// Check for errors
if (!$result) {
    echo "Error: " . $conn->error;
}

// Close connection
$conn->close();

?>

Keywords

PHP debugging database errors troubleshooting SQL queries

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