( mixed module, string host, string database, string username, string password [, int persistent])
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
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
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
DBX_OCI8 or "oci8" (available from PHP 4.3.0)
DBX_SQLITE or "sqlite" (CVS only)
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
例子 1. dbx_connect() example
$link = dbx_connect(DBX_ODBC, "", "db", "username", "password", DBX_PERSISTENT)
or die("Could not connect");
echo "Connected successfully";
Always refer to the module-specific documentation as well.
See also dbx_close().