What are the best practices for debugging SQL queries in PHP?

When debugging SQL queries in PHP, it's important to echo or log the generated query to see if it's correct. You can also use functions like mysqli_error() to check for any errors in the query execution. Additionally, parameterizing your queries can help prevent SQL injection attacks and make debugging easier. 

// Example of debugging SQL queries in PHP
$query = "SELECT * FROM users WHERE id = $user_id";
echo "Query: " . $query; // Output the generated query for debugging

$result = mysqli_query($connection, $query);
if (!$result) {
    die("Error: " . mysqli_error($connection)); // Check for errors in query execution
}

// Fetch and process the query results

Keywords

SQL queries debugging PHP error handling troubleshooting

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