sql help

[einSTein]

i dont know what is the error in this

//entering the job seeker data in the user table
$sql="INSERT INTO user2 (name, Addr, Nation, dob, Gen, cnt, mar, mil, phone, mobile, mail, user)
VALUES
('$fn','$_POST[add]','$_POST[nat]','$_POST['dd']','$_POST[gg]','$_POST[cnt]','$_POST[Mar]','$_POST[Mil]','$_POST[ph]','$_POST[mo]','$_POST[mail]','$_POST[user]')";

error
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING' in c:\apache\htdocs\gp1\jsreg.php on line 112

//line 112 is last line here

[kratt]

i dont know what is the error in this

//entering the job seeker data in the user table
$sql="INSERT INTO user2 (name, Addr, Nation, dob, Gen, cnt, mar, mil, phone, mobile, mail, user)
VALUES
('$fn','$_POST[add]','$_POST[nat]','$_POST['dd']','$_POST[gg]','$_POST[cnt]','$_POST[Mar]','$_POST[Mil]','$_POST[ph]','$_POST[mo]','$_POST[mail]','$_POST[user]')";

error
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING' in c:\apache\htdocs\gp1\jsreg.php on line 112

//line 112 is last line here

The problem lies here: '$_POST['dd']',
after second quote the php tinks that your string ended.

[einSTein]

thanx man