Invalid argument supplied for foreach()

[ppeter]

Here is what I have...

An array - $result_array

Array
(
    Array
    (
        [name] => Phil
        [email] => [email protected]
        [company] => VNL
    )
    Array
    (
        [name] => Phil
        [email] => [email protected]
        [company] => Norm's World
    )
    Array
    (
        [name] => Ppeter
        [email] => [email protected]
        [company] => Norm's World
    )
    Array
    (
        [name] => Norm
        [email] => [email protected]
        [company] => Norm's World
    )
    Array
    (
        [name] => Webby Guy
        [email] => [email protected]
        [company] => VNI
    )
)

..and then I have a for and foreach which write the contents of each array within the $result_array array to a table:

for ($c = 0; $c <= $result_array; $c++) {
    echo "    <tr>\n";
    foreach ($result_array[$c] as $data){
        echo "      <td>$data</td>\n";
    }
    echo "    </tr>\n";
} 

The table gets written out fine, but I get an infinite loop that gives me this error:

Warning: Invalid argument supplied for foreach() in <snip>loop.php on line 205

I figure I'm probably missing something obvious. Any help appreciated,

Thanks, Norm