Development

Quick Tip: when MPDF hangs generating a PDF

I'm a huge fan of MPDF it's an incredibly easy HTML to PDF library.

Recently I had some dynamically generated PDF's that would load indefinitely and eventually crash the browser, strange that the same script produced hundreds of PDF's before without any problems, after a lot of debugging I found the root cause, one of the rows coming from a database was quite long in a table cel causing the page to hang.

If I limited the number of characters then the PDf generated just fine, with a lot of trial and error I was at a loss to the solution I didn't fancy digging into the library so I decided to try the latest version in case the issue had already been resolved.

I was using quote an old version of MPDF I upgraded to 5.7 ran the script again and volla! worked first time.

If you experience a similar issue ensure your using the most recent version. Their Forum is a great source of information too.

David Carr

David Carr

For the past 12 years, I’ve been developing applications for the web using mostly PHP. I do this for a living and love what I do as every day there is something new and exciting to learn.

In my spare time, the web development community is a big part of my life. Whether managing online programming groups and blogs or attending a conference, I find keeping involved helps me stay up to date. This is also my chance to give back to the community that helped me get started, a place I am proud to be apart of.

Besides programming I love spending time with friends and family and can often be found together going out catching the latest movie, staying in playing games on the sofa or planning a trip to someplace I’ve never been before.