wordpress网站里增加访客互动、展示文章热度的时候,除了阅读数、评论数外,还有个有趣的元素,那就是赞,如QQ空间里的说说一样,赞!
以前也发过类似的插件给大家,喜欢用插件的可以进《wordpress 点赞 插件版》,而今天介绍的就是纯代码的形式,不喜欢用插件的朋友会喜欢的方式来实现 wordpress点赞功能!
下面就直接给教程吧,教程资源来自WPku
将下面的代码加入到你的functions.php
中
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add_action(‘wp_ajax_nopriv_bigfa_like’, ‘bigfa_like’);
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add_action(‘wp_ajax_bigfa_like’, ‘bigfa_like’);
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function bigfa_like(){
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global $wpdb,$post;
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$id = $_POST[“um_id”];
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$action = $_POST[“um_action”];
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if ( $action == ‘ding’){
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$bigfa_raters = get_post_meta($id,’bigfa_ding’,true);
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$expire = time() + 99999999;
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$domain = ($_SERVER[‘HTTP_HOST’] != ‘localhost’) ? $_SERVER[‘HTTP_HOST’] : false; // make cookies work with localhost
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setcookie(‘bigfa_ding_’.$id,$id,$expire,’/’,$domain,false);
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if (!$bigfa_raters || !is_numeric($bigfa_raters)) {
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update_post_meta($id, ‘bigfa_ding’, 1);
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}
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else {
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update_post_meta($id, ‘bigfa_ding’, ($bigfa_raters + 1));
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}
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echo get_post_meta($id,’bigfa_ding’,true);
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}
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die;
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}
JS代码
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$.fn.postLike = function() {
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if ($(this).hasClass(‘done’)) {
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return false;
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} else {
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$(this).addClass(‘done’);
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var id = $(this).data(“id”),
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action = $(this).data(‘action’),
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rateHolder = $(this).children(‘.count’);
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var ajax_data = {
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action: “bigfa_like”,
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um_id: id,
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um_action: action
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};
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$.post(“/wp-admin/admin-ajax.php”, ajax_data,
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function(data) {
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$(rateHolder).html(data);
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});
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return false;
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}
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};
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$(document).on(“click”, “.favorite”,
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function() {
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$(this).postLike();
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});
在你想显示的地方加入如下代码,推荐加到文章内容尾部
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<div class=”post-like”>
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<a href=”javascript:;” data-action=”ding” data-id=”<?php the_ID(); ?>” class=”favorite<?php if(isset($_COOKIE[‘bigfa_ding_’.$post->ID])) echo ‘ done’;?>”>喜欢 <span class=”count”>
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<?php if( get_post_meta($post->ID,’bigfa_ding’,true) ){
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echo get_post_meta($post->ID,’bigfa_ding’,true);
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} else {
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echo ‘0’;
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}?></span>
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</a>
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</div>
参考css样式
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.post-like{text-align:center;padding:10px}
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.post-like a{ background-color:#21759B;border-radius: 3px;color: #FFFFFF;font-size: 12px;padding: 5px 10px;text-decoration: none;outline:none}
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.post-like a.done, .post-like a:hover{background-color:#eee;color:#21759B;}
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.post-like a.done{cursor:not-allowed}
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