1，登录和未登录状态

<?php if (is_user_logged_in()) : ?>    <?php else : ?>    <?php endif; ?>

 

2，登陆过的账户和登出

<section class="spanthird pull-left">
<h2>Members Login</h2>
<?php if (is_user_logged_in()) : ?>
<?php
global $current_user;
get_currentuserinfo();
?>
<span style="color:#fff;display:block;font-family:arial;padding-left:10px;">
Welcome &nbsp;<?php echo ($current_user->display_name); ?><br>
<a href="<?php echo wp_logout_url( home_url() ); ?>" title="Logout">Logout</a>
</span>

<?php else : ?>
<form class="form-horizontal" role="form" id="logoform" method="post" action="/wp-login.php">
<div class="form-out">
<label for="inputEmail3" class="col-sm-2 control-label">Username:</label>
<div class="col-sm">
<input type="text" class="form-control" name="log" id="user_login">
</div>
<div class="clearfix"></div>
</div>
<div class="form-out">
<label for="inputPassword3" class="col-sm-2 control-label">Password:</label>
<div class="col-sm">
<input type="password" class="form-control" name="pwd" id="user_pass">
</div>
<div class="clearfix"></div>
</div>
<div class="form-out">
<div class="col-sm-offset-2 col-sm-10" style="margin-left:63px;">
<button type="submit" class="btn btn-default" value="login">Sign in</button>
<input type="hidden" value="<?php _e('/member/'); ?>" name="redirect_to">
<input type="hidden" value="1" name="testcookie">
</div>
<div class="clearfix"></div>
</div>
</form>
<?php endif; ?>

<?php include'search-form.php'; ?>
</section>