(PHP 4 >= 4.0.6, PHP 5 <= 5.0.5, PECL dbx >= 1.1.0)
dbx_connect — Open a connection/database
Opens a connection to a database.
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.
The SQL server host
The database name
The username
The password
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.
The 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).
<?php
$link = dbx_connect(DBX_MYSQL, "localhost", "db", "username", "password");
mysql_close($link->handle); // dbx_close($link) would be better here
?>
| 版本 | 说明 |
|---|---|
| 5.0.0 | Introduced DBX_SQLITE. |
| 4.3.0 | Introduced DBX_OCI8. |
| 4.2.0 | Introduced DBX_SYBASECT. |
| 4.1.0 | Introduced DBX_FBSQL. |
Example #1 dbx_connect() example
<?php
$link = dbx_connect(DBX_ODBC, "", "db", "username", "password", DBX_PERSISTENT)
or die("Could not connect");
echo "Connected successfully";
dbx_close($link);
?>
Note:
Always refer to the module-specific documentation as well.