You may have already considered this, but here goes:
<?php
$array = array('a', 'b', 'c');
foreach ($array as $value)
{
$array[] = $value;
}
// show that we can extract elements
echo $array[0]."<br>";
echo $array[1]."<br>";
echo $array[2]."<br>";
// assign those elements to vars
$a = $array[0];
$b = $array[1];
$c = $array[2];
// echo the vars
echo $a."<br>";
echo $b."<br>";
echo $c."<br>";
?>