Generating mutliple pdf files using mpdf but only one is generated - php

Question

I want to generate multiple files using mpdf library, but unfortunately, only one file is generated, instead of multiple, how can I do this. Thanks for showing your interest.
for ($i=1; $i<count($sheetData); $i++)
{
$name = $sheetData[$i][0];
$fName = $sheetData[$i][1];
$mpdf = new \Mpdf\Mpdf(['mode' => 'utf-8', 'format' => [290, 236]]);
$stylesheet = file_get_contents('../assets/css/style.css');
$mpdf->WriteHTML($stylesheet, \Mpdf\HTMLParserMode::HEADER_CSS);
ob_end_clean();
$html = $mpdf->WriteHTML('<p>My Layout is there</p>');
$filename = time().'.pdf';
$mpdf->Output($filename ,'D');
unset($mpdf);
}

Answer 1

You need to save them. U cant output them all at once with "D" or "I"
$mpdf->Output($filename ,'F');
if need one file with addPage() https://mpdf.github.io/reference/mpdf-functions/addpage.html
$mpdf = new \Mpdf\Mpdf(['mode' => 'utf-8', 'format' => [290, 236]]);
for ($i = 1; $i < count($sheetData); $i++) {
$name = $sheetData[$i][0];
$fName = $sheetData[$i][1];
$stylesheet = file_get_contents('../assets/css/style.css');
if ($i > 1) {
$mpdf->AddPage();
}
$mpdf->WriteHTML($stylesheet, \Mpdf\HTMLParserMode::HEADER_CSS);
$mpdf->WriteHTML('<p>My Layout is there</p>');
}
$filename = 'my.pdf';
$mpdf->Output($filename, 'F');
u can also create html first
$mpdf = new \Mpdf\Mpdf(['mode' => 'utf-8', 'format' => [290, 236]]);
$html = '';
for ($i = 1; $i < count($sheetData); $i++) {
$name = $sheetData[$i][0];
$fName = $sheetData[$i][1];
$html .= '<p>My Layout is there</p>';
}
$stylesheet = file_get_contents('../assets/css/style.css');
$mpdf->WriteHTML($stylesheet, \Mpdf\HTMLParserMode::HEADER_CSS);
$mpdf->WriteHTML($html);
$filename = 'my.pdf';
$mpdf->Output($filename, 'D');

Answer 2

Do you want to send multiple PDF files to the client or to save them on disk?
You're using time() as a pseudo-random filename, but if the generation of the PDF files is fast enough and happens in the same second, you will overwrite the previously generated file, at least if you choose to store the resulting file on disk. You may want to use something like "generated_$i" instead of time().