dbx_connect

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Description

object dbx_connect ( 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 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" (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:

database

It is the name of the currently selected database.

handle

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

module

It is used internally by dbx only, and is actually the module number mentioned above.

Example 1. dbx_connect() example
<?php $link = dbx_connect (DBX_ODBC, "", "db", "username", "password", DBX_PERSISTENT) or die ("Could not connect"); print ("Connected successfully"); dbx_close ($link); ?>

Note: Always refer to the module-specific documentation as well.