PhP variables

Question

Can someone tell about this kind of variables?
$name

Answer 1

No when you define $yes
$(this is for answer)$(original variable)yes;
We defined $ sign two times just because we wanted answer of answer.
If you want to make it three times you can do it.

like this
<?php
$hey = "hello";
$yes = "hey";
$j = "yes";
echo $$j;
?>

Answer 2

They are something like value of value.

Like we have a variable
$hey = "hello";
And second variable
$yes = "hey";
Now you say
echo $yes;

So it will find value of variable $yes which is "hey" and then it will find value of variable $hey which is "hello".
So finally it will print hello in output.

Answer 3

thanks ! but bro i have question below

$yes = “hey”;

how the know and hey is also not has a $ sign