PHP variable value from string

Question

How can I get value from variable which is string ?

$Member_Student        = 3600;
$selectedItem = \"Member_Student\";
$price = \"$\" . $selectedItem;
print_         


        

Answer 1

To get a variable from another variable containing its name use print_r($$selectedItem );

Answer 2

Use curly braces to denote a variable:

$Member_Student        = 3600;
$selectedItem = "Member_Student";
$price = ${$selectedItem};
print_r($price); // prints 3600

Answer 3

Change

$selectedItem = "Member_Student";

to

$selectedItem = "$Member_Student";

Answer 4

use 2 $ signs:

var_dump($$selectedItem)