How do I turn a foreach() output to a variable?

[Robo]

I have a little piece of code like this:

<?

    $i="1";
    while($i<=$n)
        {
        $nid = "nid$i";
        $mark = "mark$i";
        $valuearray[] =  "('" . $eid . "','" . $$nid . "','" . $$mark . "'),";
        $i++;
        }

    foreach ($valuearray as $value)
        {
        echo "$value";
        }
?>

And it gives me something like:

('SB5000','1','21'),('SB5000','2','22'),('SB5000','3','23'),('SB5000','4','24'),

Which is what I want. But how do I save that output string as a variable? So if I was to go "echo $newvalue;", it would give me the string as the foreach() did?

[DarkMonkey]

If I understand the problem correctly. then this should work

    foreach ($valuearray as $value)
        {
        $newvalue .= $value;
        }
echo $newvalue; 

[Robo]

Thank you, that worked

[freakysid]

There is a built in function to do this:
string implode (string glue, array pieces)
http://www.php.net/manual/en/function.implode.php

$valueString = implode("", $valueArray);