Nov 202010
What are PHP variable variables?
Answer:
A variable variable takes the value of a variable and treats that as the name of a variable.
Example:
<?php
$foo = "bar";
$bar = "foo";
echo $foo; // print "bar"
echo $$foo; // print "foo", since $foo = "bar", thus $$foo = $bar
Reference: http://il2.php.net/manual/en/language.variables.variable.php
