The module parameter can be either a string or a constant, though the latter form is preferred. The possible values are given below, but keep in mind that they only work if the module is actually loaded.
DBX_FBSQLor "fbsql" (available from PHP 4.1.0)
DBX_SYBASECTor "sybase_ct" (available from PHP 4.2.0)
DBX_OCI8or "oci8" (available from PHP 4.3.0)
DBX_SQLITEor "sqlite" (PHP 5)
The SQL server host
The database name
The persistent parameter can be set to
DBX_PERSISTENT, if so, a persistent connection
will be created.
The host, database, username and password parameters are expected, but not always used depending on the connect functions for the abstracted module.
Returns an object on success,
FALSE on error. If a connection has been
made but the database could not be selected, the connection is closed and
FALSE is returned.
object has three properties:
It is a valid handle for the connected database, and as such it can be used in module-specific functions (if required).
$link = dbx_connect(DBX_MYSQL, "localhost", "db", "username", "password");
mysql_close($link->handle); // dbx_close($link) would be better here
$link = dbx_connect(DBX_ODBC, "", "db", "username", "password", DBX_PERSISTENT)
or die("Could not connect");
echo "Connected successfully";