Questions about connecting the message board to the database

Why is the data not submitted in the message board database filled out when the message board is connected to the database ?? File conn. php: & lt ;? Php $ conn = @ mysql_connect (& quot; localhost & quot;, & quot; root & quot;, & quot;) ordie (& quot; database Message Board connection problems
Why is the data not submitted in the message board database filled out ??


File conn. php:
$ Conn = @ mysql_connect ("localhost", "root", "") or die ("database link error ");
Mysql_select_db ("bbs", $ conn );
Mysql_query ("set names 'gbk '");

?>

File add. php:


Include ("conn. php ");
If ($ _ POST [submit]) {
$ SQL = "insert into ted (id, user, title, content, lastdate) values ('', '$ _ POST [user]'), '$ _ POST [title]', '$ _ POST [content]', ".
"Now ()";
Mysql_query ($ SQL );
Echo "published successfully! ";
}
?>




------ Solution --------------------
Mysql_query ($ SQL) or die (mysql_error ());

Error message
------ Solution --------------------
At least there is a problem with parentheses in SQL.
------ Solution --------------------
$ SQL = "insert into ted (id, user, title, content, lastdate) values ('', '$ _ POST [user]'), '$ _ POST [title]', '$ _ POST [content]', ".
"Now ()";
There is one in it). write it in the back.
$ SQL = "insert into ted (id, user, title, content, lastdate) values ('', '$ _ POST [user]', '$ _ POST [title]', '$ _ POST [content]', ".
"Now ()");