How can PHP developers avoid issues with outputting data before creating a PDF file using TCPDF?

When working with TCPDF to create PDF files in PHP, developers should avoid outputting any data before generating the PDF to prevent any headers or content from being sent to the browser. To avoid this issue, developers can use output buffering to capture any output before generating the PDF. 

<?php
ob_start(); // Start output buffering
require_once('tcpdf_include.php'); // Include TCPDF library
$pdf = new TCPDF(); // Create new TCPDF object
// PDF generation code goes here
ob_end_clean(); // Clean the output buffer without sending its contents
$pdf->Output('example.pdf', 'D'); // Output the PDF as a download
?>

Keywords

TCPDF output buffering ob_start ob_end_clean ob_get_clean

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