I hope that this can make some guidelines for you, in the terms of what you can do in PHP, and in a relation to your code snippet (the code is tested):
<?php
// define class
class ConfigData
{
var $intVal;
var $tmpData;
}
$cData = new ConfigData(); // new ConfigData instance
$array[0] = $cData; // put it in a single element array
$array[0]->intVal = 5; // assign an integer to intVal
$array[0]->tmpData = array(1, 1, 2); // assign an array of whatever to tmpData
foreach($array[0]->tmpData as $val) // iterate through assigned array
echo $val." "; // print array item (and append " " )
?>
Now, you might also want to check how byte manipulation in PHP is achieved. I suggest you to do a little Google search, and maybe check the official manual. You question was not specific enough, so I can't say more.