I heard that echo is faster but print enables you to do more things with it?

I'm confused as to which one I should use mysql_* or mysqli_* the more secure one and fastest?

Can MySQL tables store URLs? And if so, can MySQL and or PHP input that URL into the browser so that the user can be redirected?

magic_quotes are being turned off by default in php6. Is there a list I can view (can't find it in php.net) that shows what will be added/taken off(or thinking about it). I'm going to stick with a book I have, but its a little out dated. (edit: or just from the top of your head) so that I dont learn things that are not safe to use.