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What is the difference between $a and $$a?



asked Sep 13, 2013 in PHP by ashish singh
edited Sep 12, 2013
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$a is variable where as $$a is reference variable 
like $a=car and $$a=tata so $car  value is  tata.

answered Sep 13, 2013 by ashish singh
edited Sep 12, 2013

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