What is the diffrence between $var and $$var

[Rahul Kaushik]

Hi,
     Some one make me clear that what is  difference between $var and $$var.


     Thanks in advance

[phpdeveloper]

Hello Rahul,

    I think you will understand with this example so look at the code
            $var = 'hello';
             $$var = 'word';
            echo $hello;
     For example, the code creates a variable called $hello and outputs the string 'world'.  The double dollar sign     declares that the value of $var should be used as the name of newly defined variable.

Hope this will help you....!!!!!

[Rahul Kaushik]

HI,phpdeveloper.
                                   Thank you for Replay........