mssql_bind - passing a DATE (calling a MS SQL Server Stored Proc)

[KingsX]

hello,

i am trying to call a stored proc using mssql_execute.

i am setting up my parameters using mssql_bind:

mssql_bind ($query,"@dob", $dob, SQLVARCHAR);

i tried "SQLVARCHAR" but it didn't work.

i found some help in an article that said:

"For the type parameter, I've specified SQLINT2, which is defined
by PHP internally to represent an integer of two bytes. Other
possible values for the type parameter include SQLTEXT,
SQLVARCHAR, SQLCHAR, SQLINT1, SQLINT2, SQLINT4, SQLBIT
and SQLFLT8"

What would I use for a DATETIME field??