PHP $ Vs $$ :– If $a = ‘b’ then $$a is $b.
$variable is a normal variable $$variable takes the value of a variable and treats that as the name of a variable
Assuming $a = “foo”, $$a will be same as $foo
In PHP each variable starts with an $.
So for example you have the variable $a = ‘var’;
So $$a == $var
This new variable will have the “content” of the other variable as name.
Example
<?php $a = "b"; $b="hello"; echo $$a; ??> |
