What are the best practices for handling data retrieval and template parsing in PHP scripts?

When handling data retrieval and template parsing in PHP scripts, it is important to separate concerns by using functions or classes for data retrieval and template parsing. This helps in maintaining a clean and organized codebase. Additionally, using prepared statements for database queries can prevent SQL injection attacks. Lastly, caching data retrieval results can improve performance by reducing the number of database queries. 

// Example of separating concerns for data retrieval and template parsing

// Function for data retrieval
function getDataFromDatabase($id) {
    // Connect to database and retrieve data
    return $data;
}

// Function for template parsing
function parseTemplate($template, $data) {
    // Parse template with data
    return $parsedTemplate;
}

// Example of fetching data, parsing template, and outputting result
$id = $_GET['id'];
$data = getDataFromDatabase($id);
$template = file_get_contents('template.html');
$parsedTemplate = parseTemplate($template, $data);
echo $parsedTemplate;

Keywords

data retrieval template parsing PHP scripts error handling libraries

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