array walk in an easy way for displaying view? [Solved]

[eluser]notebook[/eluser]
i am sorry i could'nt understand this concept.
does that mean this ?

Code:

foreach($mydata as $row => $value)
{
$$row = $unit_name;
$$row = $category_name;
$$row = $course_name;

echo $unit_name;
echo $category_name;
echo $course_name;

}