How can PHP developers troubleshoot errors related to SQL queries in functions?

To troubleshoot errors related to SQL queries in functions, PHP developers can use error handling techniques such as try-catch blocks to catch and display any SQL errors that occur during query execution. They can also use tools like var_dump() or print_r() to inspect variables and ensure that the SQL query is constructed correctly.

try {
    // Your SQL query code here
    $result = $pdo->query("SELECT * FROM table_name");
    
    // Process the query result
    foreach($result as $row){
        // Process each row
    }
} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}