What potential issues can arise when attempting to use a loop to generate multiple PDF files from database entries in PHP?

One potential issue that can arise when using a loop to generate multiple PDF files from database entries in PHP is that the memory usage may increase significantly if a large number of PDF files are being generated at once. To solve this issue, you can free up memory by clearing the memory allocated for each PDF file after it has been generated. 

// Loop through database entries
foreach ($databaseEntries as $entry) {
    // Generate PDF file for each entry
    $pdf = new TCPDF();
    // Add content to PDF
    // ...
    
    // Output PDF to file
    $pdf->Output('output.pdf', 'F');
    
    // Clear memory allocated for PDF
    unset($pdf);
}

Keywords

loop PDF files database entries PHP errors

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