Dynamic Number of Textarea's

I never figured out how to do it so I thought I'll just ask.

I don't have any specific code, I have always worked around that problem but now I'm at a point where I have to somehow do it.

Let's say I've got an array:

$myarray = array('321', '54', '74', '13', '876');

Code (markup):

Now I'm putting every value into a textarea:

foreach ($array as $key=>$val)
{
echo '<textarea>'.$val.'</textarea>';
}

Code (markup):

Now my question: How can I make those values editable? With this array I've got 5 textareas. I can't give them the same name, so how to do it?

It's for a shopping cart for editing the number of ordered items. I'm sure you know what I mean.

PS. Yes, I know that I need to submit the forms and such, but didn't want to make a huge post.

 

$x = 1;
foreach ($array as $key=>$val)
{
echo '<textarea name="Area'.$x.'">'.$val.'</textarea>';
$x++
}

PHP:

 

Yes, thank You, but how do I check for changes after submitting the form?

if (???? != $val[$i]) {

PHP:

EDIT: It doesn't have to be <textarea>, can be input or whatever else works. Anything that could print an unknown number of input fields and save the changes.

ADDED:
Ok, did it that way:

	foreach ($array as $key=>$val)
	{
			echo '
				<form method="GET" name="form'.$key.'">
				<input type="text" name="to" value="'.$val.'" />
				<input type="submit" name="change" value="'.$key.'" />
				</form>
			';
	}

PHP: