$name =single_tag_title('', false);

$obj=get_tags(array('name'=> $name ));
var_dump($obj);
结果为：
array(1) {
[0]=>
object(stdClass)#1964 (9) {
["term_id"]=>
string(2) "24"
["name"]=>
string(9) "PHP程序员"
["slug"]=>
string(10) "php"
["term_group"]=>
string(1) "0"
["term_taxonomy_id"]=>
string(2) "24"
["taxonomy"]=>
string(8) "post_tag"
["description"]=>
string(0) ""
["parent"]=>
string(1) "0"
["count"]=>
string(1) "5"
}
}