Independent process in php

Question

I will converting a pdf to images using imagick and php, When the user upload the pdf file with ajax is sending and catching by a php process wich convert the pdf to images, the problem is sometimes this process take a lot of time and expire the execution of the php script.

Can I return the finish of the ajax execute and the server continues with images render in the server?

Answer 1

Yes. You'd decouple the conversion from the Ajax return, and process the file independently. A few typical scenarios:

1. A "cron job" does the conversions.

2. You fork a process (pcntl_fork(), or perhaps pthreads) to handle the responsibility.

3. You might even manage a system call with backgrounding (in 'Nix, look up "Unix Job Control").