How can the EVA principle be applied to separate database operations from HTML output in PHP?

To apply the EVA principle (separating concerns of Entity, View, and Action) in PHP to separate database operations from HTML output, you can create separate classes or functions for handling database operations and generating HTML output. This helps in keeping the codebase clean, maintainable, and easier to debug. By following this principle, you can ensure that database logic and HTML presentation are decoupled, making it easier to make changes in the future. 

// Database class for handling database operations
class Database {
    public function fetchData() {
        // Database query to fetch data
        return $data;
    }
}

// HTML class for generating HTML output
class HTML {
    public function generateOutput($data) {
        // Generate HTML output using $data
        echo "<ul>";
        foreach ($data as $item) {
            echo "<li>{$item}</li>";
        }
        echo "</ul>";
    }
}

// Implementation
$database = new Database();
$html = new HTML();

$data = $database->fetchData();
$html->generateOutput($data);

Keywords

EVA principle database operations HTML output PHP separation

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