dbx_connect() 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. The
persistent parameter can be set to DBX_PERSISTENT, if so, a persistent
connection will be created.
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_MYSQL or
"mysql"
DBX_ODBC or
"odbc"
DBX_PGSQL or
"pgsql"
DBX_MSSQL or
"mssql"
DBX_FBSQL or
"fbsql" (available from PHP 4.1.0)
DBX_SYBASECT or
"sybase_ct" (available from PHP 4.2.0)
DBX_OCI8 or "oci8"
(available from PHP 4.3.0)
The host, database,
username and
password parameters are expected, but not always
used depending on the connect functions for the abstracted
module.
The returned object has three
properties:
It is the name of the currently selected
database.
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 |
It is used internally by dbx only, and is actually
the module number mentioned above.
注: Always refer to the module-specific documentation as well.
See also: dbx_close().