Help with getting variables

Hi, it’s been a while since I last wrote here, as usualy I need some help :}

I know how to post and get variables from a php with flash, but how do I get info right when the flash is loading? Like youtube:

the data after the v= is automaticly transmitted to the swf file so no second php call is needed

can someone explain to me how it’s done?

thanks in advance :thumb2: