"; break; case 2: $avatar = preg_replace("/http[s]{0,1}:\/\/(secure|www|\d).gravatar.com\/avatar\//","//cdn.v2ex.com/gravatar/",$avatar); break; default: $avatar = preg_replace("/http[s]{0,1}:\/\/(secure|www|\d).gravatar.com\/avatar\//","//dn-qiniu-avatar.qbox.me/avatar/",$avatar); } return $avatar; } add_filter('get_avatar', 'gdk_switch_get_avatar'); //fancybox图片灯箱效果 function fancybox($content) { $pattern = "/]*).(bmp|gif|jpeg|jpg|png|swf)('|\")(.*?)>(.*?)<\\/a>/i"; $replacement = '$7'; $content = preg_replace($pattern, $replacement, $content); return $content; } add_filter('the_content', 'fancybox');