[thelist] Linux CHMOD

[XtiaN]

Hi, 

This is my first time setting LAMP and i'm using fedora 6.0.
I'm making some web application and i also need to chmod some directory to 777 (i'm using upload features on my images directory)

By default, each time i call mkdir() in php, the result is 1 directory with 
- owner : apache
- group : apache
- permission 755

Is it ok and secure if i continue using mkdir this way? or perhaps should i change mkdir's permission mode  to another? 

Any tips would be very helpful.

Thanks