WordPress文章添加阅读次数统计

functions模版文件添加代码：

//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');

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。