功能丰富的WordPress点赞插件不少，但对于要在主题中集成简单文章点赞功能的需求，插件就显得不合

add_action('wp_ajax_nopriv_bigfa_like', 'bigfa_like');
add_action('wp_ajax_bigfa_like', 'bigfa_like');
function bigfa_like(){
global $wpdb,$post;
$id = $_POST["um_id"];
$action = $_POST["um_action"];
if ( $action == 'ding'){
$bigfa_raters = get_post_meta($id,'bigfa_ding',true);
$expire = time() + 99999999;
$domain = ($_SERVER['HTTP_HOST'] != 'localhost') ? $_SERVER['HTTP_HOST'] : false; // make cookies work with localhost
setcookie('bigfa_ding_'.$id,$id,$expire,'/',$domain,false);
if (!$bigfa_raters || !is_numeric($bigfa_raters)) {
update_post_meta($id, 'bigfa_ding', 1);
}else {
update_post_meta($id, 'bigfa_ding', ($bigfa_raters + 1));
} 
echo get_post_meta($id,'bigfa_ding',true); 
} 
die;
}

原文地址：https://www.53431.com/wordpresscat/jiqiao/842.html