php mysql noob help

i was following a tutorial on a site for php and mysql ..

i have a few doubts ...





what are those marked in red called ?

 

Variables...? or am I not getting something?

 

ok .. why are some of the same variable names in the bracket ? appearing and reappearing ?

 

The brackets are part of the function calls. eg. mysql_query($sql4), mysql_query() is a function and $sql4 is a variable that it passed to the function.
These are the VERY basics that you should have learned before you start mixing in any database stuff. I seriously recommend that you learn the basics first.

http://w3schools.com/php/php_syntax.asp
http://www.php.net/manual/en/language.basic-syntax.php

 

ok thanks a lot.. one step closer

 

Why don't you start with learning the language. In less than 1 hour you will be able to write PHP code.