How can one troubleshoot SQL syntax errors in PHP scripts?

To troubleshoot SQL syntax errors in PHP scripts, carefully review the SQL query for any syntax errors such as missing commas, incorrect table or column names, or improper use of quotation marks. Use error reporting functions like mysqli_error() to identify the specific error message returned by the database server. Additionally, consider using prepared statements or parameterized queries to prevent SQL injection attacks and minimize syntax errors.

// Example PHP code snippet to troubleshoot SQL syntax errors
$query = "SELECT * FROM users WHERE username = 'john'";
$result = mysqli_query($connection, $query);

if (!$result) {
    die("Error: " . mysqli_error($connection));
} else {
    // Process the query result
}