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What does $$ mean in PHP?
I am new to PHP and I don’t know what the difference between $a and $$a is.
Possible Duplicate: What does $$ mean in PHP? I am new to PHP and
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Possible Duplicate:
What does $$ mean in PHP?
I am new to PHP and I don’t know what the difference between $a and $$a is.
If
$a = 'b'then$$ais$b.This is a variable variable. They are evil. Use arrays instead (which do the same thing, but more maintainably and with the ability to use array functions on them).