Are there any best practices for handling database queries and conditional formatting in PHP scripts?

When handling database queries in PHP scripts, it is important to sanitize user input to prevent SQL injection attacks. Additionally, using prepared statements can help improve performance and security. When implementing conditional formatting, it is recommended to use ternary operators or switch statements for readability and maintainability. 

// Database query with prepared statement
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();
$results = $stmt->fetchAll();

// Conditional formatting using ternary operator
$color = ($value > 0) ? 'green' : 'red';
echo "<span style='color: $color;'>$value</span>";

// Conditional formatting using switch statement
switch ($status) {
    case 'active':
        echo "<span style='color: green;'>Active</span>";
        break;
    case 'inactive':
        echo "<span style='color: red;'>Inactive</span>";
        break;
    default:
        echo "<span style='color: orange;'>Unknown</span>";
}

Keywords

database queries conditional formatting PHP scripts error handling optimization

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