$_POST获取不到

<?php
echo '<pre>';
print_r($_POST);
echo '</pre>';
$register = <<<'FROM'
<from action="" method="post">
   <label for="name">姓名：</label>
   <input type="text" name="name" id="name">
   <label for="pwd">密码：</label>
   <input type="password" name="pwd" id="pwd">
   <input type="submit" value="提交">
</from>
FROM;
echo $register;
?>