djaney/variable_dynamic_name.php

## variable_dynamic_name.php
<?php
$variable = 'number';
$number = 10;

echo $$variable; // this will output "10" because you are referring to the variable called "number"
	<?php
	$variable = 'number';
	$number = 10;

	echo $$variable; // this will output "10" because you are referring to the variable called "number"