How can developers enhance their debugging process when dealing with complex SQL queries in PHP PDO?

When dealing with complex SQL queries in PHP PDO, developers can enhance their debugging process by enabling error reporting and exception handling. This allows them to catch and handle any errors that may occur during query execution, providing more detailed information on what went wrong. 

// Enable error reporting and exception handling
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

// Example of executing a complex SQL query
try {
    $stmt = $pdo->prepare("SELECT * FROM users WHERE age > :age");
    $stmt->bindParam(':age', 18, PDO::PARAM_INT);
    $stmt->execute();
    
    // Fetch results
    $results = $stmt->fetchAll(PDO::FETCH_ASSOC);
    
    // Process results
    foreach($results as $row){
        // Do something with each row
    }
} catch(PDOException $e) {
    // Handle any errors that occur during query execution
    echo "Error: " . $e->getMessage();
}

Keywords

PHP PDO debugging complex SQL queries error handling query optimization

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