How can race conditions be avoided when using temporary files to display PDF data from a Blob field in an Oracle database in PHP?

Race conditions can be avoided by generating a unique file name for each temporary file created to display PDF data from a Blob field in an Oracle database. This ensures that multiple users accessing the same page do not overwrite each other's temporary files. Additionally, using proper file locking mechanisms can help prevent concurrent access to the same file.

// Generate a unique file name for the temporary file
$tempFileName = uniqid('pdf_') . '.pdf';

// Write the PDF data from the Blob field to the temporary file
file_put_contents($tempFileName, $pdfData);

// Display the PDF using the temporary file
echo '<embed src="' . $tempFileName . '" type="application/pdf" width="100%" height="600px" />';