<?php $a=5; $b='a'; $$b=100; // at this point $b='a

If the variable $a is equal to 5 and variable $b is equal to
character a, what’s the value of $$b?

Can anyone explain how's the value of $$b=100

Question Posted / mr.kishore

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Answer Posted / mr.kishore

<?php
$a=5;
$b='a';
$$b=100; // at this point $b='a' and when we use $ after
that '$$b becomes $a and we asign this value = 100 so $a
becomes 100;
echo $a;

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