My hosting service provides 2 options for php versions; however, I have been running php4 because it was the default. I wanted to test out WordPress’s Automatic Upgrade functionality but it just says it is downloading the zip file without any further progress.
I tried to look at permission and stuff but nothing was very clear. However, I noticed somewhere in WordPress forum someone recommends that PHP5 is used.
I looked up how to use PHP5 from my hosting service and it was a simple line to enable PHP5. I just added a line in .htaccess file.