<?php

$array = array(
    'hello' => 'world', 
    'what' => 'shit'
);

function set($name, $value)
{
    global $array;
    $array[$name] = $value;
}

set('poop', 'fart');

foreach($array as $var => $value)
{
    ${$var} = $value;
}
    
echo $poop;

?>