如何获得会话和比较

This is session RememberMe

Array
(
    [formfields] => Array
        (
            [RememberMe] => 1
        )
)

The box should be checked

 <input <?php if(isset($_SESSION['RememberMe']) && $_SESSION['RememberMe'] ==1  ) { echo 'checked="checked"'; } ?> type="checkbox" name="RememberMe" value="1" />

The checkbox was not checked. Why?

If the first array is your $_SESSION global you should be using $_SESSION['formfields']['RememberMe']