$$

[Anon]

Can somebody tell me why you might use (2 $$) $$variable, instead of (1 $) $variable?

Thanks for your help!

[Anon]

Suppose this :

$var0 = "yo man !"; // !!!
$var1 = "var0";
echo $$var1; // same thing as echo $var0

Will echo "yo man !"

It will take the content of a variable and this content will indicate a variable name... you also can use ${$var1}
${$var1} = ${"var0"} = $var0 = "yo man !"

[Anon]

Excellent! Thanks for the reply.