Solve : Question on PHP?

1.	Solve : Question on PHP?
Answer» For my summer internship i was asked to find out what the FOLLOWING lines of code in php will do: $var="hello"; $$var="world"; ECHO $hello; $var(); ANYONE KNOW?Do some studying at http://www.w3schools.com/php/default.asp. why not try it out for yourself?well i believe that the first one inputs the string hello into the variable $var, and the third statement prints or outputs the variable $hello which has no value cause it hasnt been given one yet. I've NEVER seen a double $ sign and I dont exactly understand what is going on with the $var();Have you tested the code snippet yet? Sometimes that is the best way to learn.

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