How can reviewing error logs help in identifying and resolving issues with generating PDFs using wkhtmltopdf in PHP?

Reviewing error logs can help in identifying and resolving issues with generating PDFs using wkhtmltopdf in PHP by providing insight into any errors or warnings that occur during the process. By examining these logs, developers can pinpoint the specific issue causing the problem, such as missing dependencies or incorrect command line arguments, and take appropriate action to resolve it.

// Enable error logging for wkhtmltopdf
ini_set('error_log', '/path/to/error.log');

// Generate PDF using wkhtmltopdf
exec('wkhtmltopdf input.html output.pdf', $output, $return);

// Check for errors
if($return !== 0) {
    // Log any errors
    error_log('Error generating PDF: ' . implode("\n", $output));
}