<?php

   session_start();

if (!$_SESSION['array']) {
     $_SESSION['array'] = array();
}
if(count($_POST)>0){
   $procs=array("item","price");
   foreach($procs as $proc){
      $_SESSION['array'][]=array("key"=>$proc,"value"=>$_POST[$proc]);
   }
}

echo "<form method='POST' action='tester1.php'>";
echo "Item: <input name='item' type='text' size='25' value='' /><br/>";
echo "Price: <input name='price' type='text' size='6' value='' /><br/>";
echo "<input name='action' type='submit' value='add'>";
echo "</form>";

echo "<br/><br/>";

echo "<pre>";
print_r($_SESSION['array']);
echo "</pre>";

?>