Re: Using ' to access session variables?

If used outside any strings (like in your $query example) $_SESSION[foo] -- here foo technically is a constant and php ought to produce a notice $_SESSION['foo'] -- is the correct way as there is no doubt that foo is a string When used inside a string the rules are slightly altered @see http://www.php.net/manual/en/language.types.array.php section Array do's and don'ts Richard Friday, April 16, 2004, 6:32:11 PM, you wrote: > Whats the difference between $_SESSION[foo] and $_SESSION['foo'] I have been > using the 's but they seem to be unecessary? > I run into trouble if I try something like: > $query = " select * from table where (test.id = '$_SESSION['foo']') > "; > but the following works: > $query = " select * from table where (test.id = '$_SESSION[foo]') "; > I know there is some way to properly escape characters but is there any > reason why I shouldn't just omit the 's? > Thanks!