免插件实现WordPress文章阅读次数

2013-10-11 06:57 ⁄ WP相关 ⁄ 共 4940字 ⁄ 字号小中大 ⁄ 暂无评论

一般为Wordpress文章添加阅读次数统计，会用到wp-postviews或者wp-postviews-plus插件，这里分享两段不用插件实现Wordpress文章阅读次数的代码，供大家参考。

代码一：

一、首先将下面代码加到主题functions模版文件中：

<?php setPostViews(get_the_ID()); ?>
也就是类似这句的下面

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
三、最后，将调用显示阅读次数代码加到single模版适当的位置：

<?php echo getPostViews(get_the_ID()); ?>
如果想在其它位置显示阅读次数，可以将下面代码也加到functions模版中：

remove_action（'wp_head'，'adjacent_posts_rel_link_wp_head'，10，0）;

原文：Track post views without a plugin using post meta

代码二：

一、同样将下面代码加到主题functions模版文件中：

//postviews
function get_post_views ($post_id) {

    $count_key = 'views';
    $count = get_post_meta($post_id, $count_key, true);

    if ($count == '') {
        delete_post_meta($post_id, $count_key);
        add_post_meta($post_id, $count_key, '0');
        $count = '0';
    }

    echo number_format_i18n($count);

}

function set_post_views () {

    global $post;

    $post_id = $post -> ID;
    $count_key = 'views';
    $count = get_post_meta($post_id, $count_key, true);

    if (is_single() || is_page()) {

        if ($count == '') {
            delete_post_meta($post_id, $count_key);
            add_post_meta($post_id, $count_key, '0');
        } else {
            update_post_meta($post_id, $count_key, $count + 1);
        }

    }

}
add_action('get_header', 'set_post_views');
二、将调用显示阅读次数代码加到single模版适当的位置：

<?php get_post_views($post -> ID); ?> views
调用显示阅读次数代码也可以加到其它模版文件的适当位置。

另外，HotNews主题想不用插件统计阅读次数并同时实现近期热门文章调用，需要将下面代码加加到functions模版上述代码的前面：

### WP-PostViews
if(!function_exists('get_most_viewed')) {
    function get_most_viewed($mode = '', $limit = 10, $chars = 0, $display = true) {
        global $wpdb;
        $views_options = get_option('views_options');
        $where = '';
        $temp = '';
        $output = '';
        if(!empty($mode) && $mode != 'both') {
            $where = "post_type = '$mode'";
        } else {
            $where = '1=1';
        }
        $most_viewed = $wpdb->get_results("SELECT DISTINCT $wpdb->posts.*, (meta_value+0) AS views FROM $wpdb->posts LEFT JOIN $wpdb->postmeta ON $wpdb->postmeta.post_id = $wpdb->posts.ID WHERE post_date < '".current_time('mysql')."' AND $where AND post_status = 'publish' AND meta_key = 'views' AND post_password = '' ORDER BY views DESC LIMIT $limit");
        if($most_viewed) {
            foreach ($most_viewed as $post) {
                $post_views = intval($post->views);
                $post_title = get_the_title($post);
                if($chars > 0) {
                    $post_title = snippet_text($post_title, $chars);
                }

                $temp = stripslashes($views_options['most_viewed_template']);
                $temp = str_replace("%VIEW_COUNT%", number_format_i18n($post_views), $temp);
                $temp = str_replace("%POST_TITLE%", $post_title, $temp);
                $temp = str_replace("%POST_EXCERPT%", $post_excerpt, $temp);
                $temp = str_replace("%POST_CONTENT%", $post->post_content, $temp);
                $temp = str_replace("%POST_URL%", get_permalink($post), $temp);
                $output .= $temp;
            }
        } else {
            $output = '<li>'.__('N/A', 'wp-postviews').'</li>'."\n";
        }
        if($display) {
            echo $output;
        } else {
            return $output;
        }
    }
}

### 按时间获得最受欢迎文章
function get_timespan_most_viewed($mode = '', $limit = 10, $days = 7, $display = true) {
    global $wpdb, $post;
    $limit_date = current_time('timestamp') - ($days*86400);
    $limit_date = date("Y-m-d H:i:s",$limit_date);
    $where = '';
    $temp = '';
    if(!empty($mode) && $mode != 'both') {
        $where = "post_type = '$mode'";
    } else {
        $where = '1=1';
    }
    $most_viewed = $wpdb->get_results("SELECT $wpdb->posts.*, (meta_value+0) AS views FROM $wpdb->posts LEFT JOIN $wpdb->postmeta ON $wpdb->postmeta.post_id = $wpdb->posts.ID WHERE post_date < '".current_time('mysql')."' AND post_date > '".$limit_date."' AND $where AND post_status = 'publish' AND meta_key = 'views' AND post_password = '' ORDER BY views DESC LIMIT $limit");
    if($most_viewed) {
        foreach ($most_viewed as $post) {
            $post_title = get_the_title();
            $post_views = intval($post->views);
            $post_views = number_format($post_views);
            $temp .= "<li><a href=\"".get_permalink()."\">$post_title</a>".__('', 'wp-postviews')."</li>";
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-postviews').'</li>'."\n";
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}