如题,给你的Wordpress绘制一个评论统计吧!点击这里预览。代码比较简单,见下文,转自Leniy’s BLOG。代码大概的原理是:首先读取数据库,依照不同目的进行数据库查询,然后把输出的数据格式化,最后调用 Google Chart Api 绘制图形(所以你不许翻墙,不然看不到演示)。

使用方法应该不必多言,在主题目录下新建个 php 文件,填入以上代码即可,当然,相关的样式你可以随便改改。然后新建-新建页面即可。另外值得一提的是:图表有时候可能不会正确绘制或者打不开,那是因为我大天朝的长城防火墙导致的,那还烦请您欢个墙试试~~
<?php /** * @author leniy */ /* Template Name: Comments Chart Page */ ?> <?php get_header(); ?> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <h2><p style="text-align:center"><a href="http://www.youth-daily.com/wordpress%E8%AF%84%E8%AE%BA%E7%BB%9F%E8%AE%A1%E5%9B%BE%E8%A1%A8%E7%BB%98%E5%88%B6.html" title="点此查看本页如何生成,图标不可见?被墙了-_-" target="_blank">本站活跃用户排名</a></p></h2><div id="chart_user_div" style="width: 640px; height: 400px; margin: auto;"></div></br> <h2><p style="text-align:center">评论数量图表</p></h2><div id="chart_day_div" style="width: 640px; height: 500px; margin: auto;"></div></br> <h2><p style="text-align:center">评论数量图表</p></h2><div id="chart_month_div" style="width: 640px; height: 500px; margin: auto;"></div> <?php global $wpdb; $numbers_day = 30; $numbers_month = 9; $numbers_user = 8; $query_day ="SELECT COUNT(*) AS `cnt` , DATE_FORMAT( `comment_date` , '%Y-%m-%d' ) AS d FROM $wpdb->comments GROUP BY d ORDER BY `d` DESC LIMIT 0 , " . $numbers_day; $query_month="SELECT COUNT(*) AS `cnt` , DATE_FORMAT( `comment_date` , '%Y-%m' ) AS d FROM $wpdb->comments GROUP BY d ORDER BY `d` DESC LIMIT 0 , " . $numbers_month; $query_user =" SELECT COUNT( comment_author_email ) AS number, comment_author_email, comment_author FROM ( SELECT * FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ( $wpdb->posts.ID = $wpdb->comments.comment_post_ID ) WHERE comment_date > date_sub( NOW(), INTERVAL 180 DAY ) AND user_id = '0' AND comment_approved = '1' ORDER BY comment_ID DESC ) AS tempcmt GROUP BY comment_author_email ORDER BY number DESC LIMIT {$numbers_user}"; $output_day = $wpdb->get_results($query_day); $output_month = $wpdb->get_results($query_month); $output_user = $wpdb->get_results($query_user); ?> <script type="text/javascript"> google.load("visualization", "1", {packages:["corechart"]}); google.setOnLoadCallback(drawChart_day); google.setOnLoadCallback(drawChart_month); google.setOnLoadCallback(drawChart_user); function drawChart_day() { var data = google.visualization.arrayToDataTable([ ['date', 'comments'], <?php foreach (array_reverse($output_day) as $o) {echo "['" . $o->d . "'," . $o->cnt . "],";} ?> ]); var options = { title: '每日评论数图' }; var chart = new google.visualization.LineChart(document.getElementById('chart_day_div')); chart.draw(data, options); } function drawChart_month() { var data = google.visualization.arrayToDataTable([ ['date', 'comments'], <?php foreach (array_reverse($output_month) as $o) {echo "['" . $o->d . "'," . $o->cnt . "],";} ?> ]); var options = { title: '每月评论数图' }; var chart = new google.visualization.ColumnChart(document.getElementById('chart_month_div')); chart.draw(data, options); } function drawChart_user() { var data = google.visualization.arrayToDataTable([ ['comment_author', 'comments'], <?php foreach ($output_user as $o) {echo "['" . $o->comment_author . "'," . $o->number . "],";} ?> ]); var options = { title: '半年内最活跃用户图' }; var chart = new google.visualization.PieChart(document.getElementById('chart_user_div')); chart.draw(data, options); } </script> </div> </div> <?php get_footer(); ?>
这个真不错。去试试。