Fix PHP PDF Generation Errors: Quick Guide

There could be several reasons for errors when generating PDFs in PHP, here are some common troubleshooting methods:

1. Make sure you have installed the correct PHP extension libraries (such as TCPDF, FPDF, mPDF, etc.) to generate PDF files. You can refer to the PHP documentation for more information.
2. Check your PHP code for correctness, including the paths, file names, and parameters. Make sure you have not entered any incorrect parameters or file paths.
3. Check if your PHP environment is properly configured, such as memory limit, execution time limit, etc.
4. Check if your server has sufficient permissions to generate PDF files. Make sure you have enough permissions to write files.
5. Make sure you have correctly configured and called functions according to the documentation of the third-party library you are using to generate PDFs.
6. Try using different PHP extension libraries or tools to generate PDF files to see if that can solve the issue.

If the above methods do not solve your issue, it is recommended that you check the PHP error log or debugging information for more detailed error messages in order to better identify and resolve the problem.