I want to make my php based script's url search engin friendly,as i know
nothing about .htaccess, can anyone one hints me about the code in the .htaccess


the actual url is index?default&base=one&script=comment where "one" is the folder name and comment
is the script on that folder.default is fixed all time. so those url parse in a functin and base and script variable i caught via request in a file which inlude in the very begining of the execution.

So suppose i want visitor to type
but it's actual url is

and another one like

but it's actual url is

can anyone hinst me about the htaccess code for this along with the regular expression

thank you all