Php cannot query mysql database when the query condition is a Chinese string variable

$ Temp2 & nbsp; = 'ten years '; mysql_query ("SET & nbsp; NAMES & nbsp; GBK") cannot be queried when the query condition of the php mysql database is a Chinese string variable "); $ res & nbsp; = & nbsp; mysql_query ("select & nbsp; songer_name & nbsp; fro php cannot be queried when the mysql database query condition is a Chinese string variable
$ Temp2 = 'Ten year ';
Mysql_query ("set names gbk ");
$ Res = mysql_query ("select songer_name from song_tab where song_name = '10 '");
Query Results
However

$ Temp2 = 'Ten year ';
Mysql_query ("set names gbk ");
$ Res = mysql_query ("select songer_name from song_tab where song_name = $ temp2 ");
No. how can this problem be solved?
------ Solution --------------------
$ Temp2 is enclosed in single quotes on both sides. it is best to add addslashes () first ().
------ Solution --------------------
Quotation marks!
$ Res = mysql_query ("select songer_name from song_tab where song_name = '$ temp2 '");