WordPress给文章内容添加评论可见和登录可见小功能教程

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把下边的代码加入到当前主题的functions.php 中

评论可见

已登录的用户评论才有效可见。

// 文章内容评论可见
function reply_to_read($atts, $content=null) {   
    extract(
        shortcode_atts(
            array(
                "notice" => '<div class="whidebox">抱歉提示：此处内容需要 <a href="' . get_permalink() . '#comments" title="评论本文">评论本文</a> 后 <a href="javascript:window.location.reload();" target="_self">刷新本页</a> 才能查看！</div>'
            ),
            $atts
        )
    );
	$email = null;   
	$user_ID = (int) wp_get_current_user()->ID;   
	if ($user_ID > 0) {   
		$email = get_userdata($user_ID)->user_email;   
		//对博主直接显示内容   
		$admin_email = get_bloginfo ( 'admin_email' ); //博主Email
		if ($email == $admin_email) {   
			return $content;   
		}   
	} else if (isset($_COOKIE['comment_author_email_' . COOKIEHASH])) {   
		$email = str_replace('%40', '@', $_COOKIE['comment_author_email_' . COOKIEHASH]);   
	} else {   
		return $notice;   
	}   
	if (empty($email)) {   
		return $notice;   
	}   
	global $wpdb;   
	$post_id = get_the_ID();   
	$query = "SELECT `comment_ID` FROM {$wpdb->comments} WHERE `comment_post_ID`={$post_id} and `comment_approved`='1' and `comment_author_email`='{$email}' LIMIT 1";   
	if ($wpdb->get_results($query)) {   
		return do_shortcode($content);   
	} else {   
		return $notice;   
	}   
}
add_shortcode('lixui_reply', 'reply_to_read');
// 添加评论可见快捷标签按钮
function appthemes_add_reply() {
?>
    <script type="text/javascript">
        if ( typeof QTags != 'undefined' ) {
            QTags.addButton( 'lixui_reply', '评论可见按钮', '[lixui_reply]','[/lixui_reply]' );
        } 
    </script>
<?php 
}
add_action('admin_print_footer_scripts', 'appthemes_add_reply' );

登录可见

// 文章内容登录可见
function login_to_read($atts, $content = null) {
	extract(shortcode_atts(array("notices" =>'
	<div class="hide_visible">抱歉，隐藏内容须成功<a href="' .get_stylesheet_directory_uri(). '/login" etap="login_btn" title="登录"> 登录 </a>后刷新可见！</div>'), $atts));
	if (is_user_logged_in()) {
		return do_shortcode( $content );
	} else {
		return $notices;
	}
}
add_shortcode('lixui_login', 'login_to_read');
// 添加登录可见快捷标签按钮
function appthemes_add_login() {
?>
    <script type="text/javascript">
        if ( typeof QTags != 'undefined' ) {
            QTags.addButton( 'lixui_login', '登录可见', '[lixui_login]','[/lixui_login]' );
        } 
    </script>
<?php 
}
add_action('admin_print_footer_scripts', 'appthemes_add_login' );

记得添加CSS

.hide_visible{position: relative;display: inline-block;text-align: center;border: 1px dashed #fc3c2d;padding: 8px;margin: 10px auto;color: #fc3c2d;width: 100%;border-radius:4px;}
.hide_visible p{margin: 0;padding: 0 60px;}
.hide_visible::before {position: absolute;top: 0;left: 0;content: "\9690\85cf\5185\5bb9";background-color: #fc3c2d;color: #fff;line-height: 1;padding: 4px 5px;font-size: 12px;border-radius: 0 0 2px 0;
margin: -1px;}
.hide_visible a {color:#04a1ef}
.hide_visible a:hover {color:#ffb300}

使用方法