sybase_pconnect - Open persistent Sybase connection
Вернуться к: Sybase Функции
sybase_pconnect
(PHP 4, PHP 5, PHP 7)
sybase_pconnect — Open persistent Sybase connection
Описание
$servername
[, string $username
[, string $password
[, string $charset
[, string $appname
]]]]] )sybase_pconnect() acts very much like sybase_connect() with two major differences.
First, when connecting, the function would first try to find a (persistent) link that's already open with the same host, username and password. If one is found, an identifier for it will be returned instead of opening a new connection.
Second, the connection to the SQL server will not be closed when the execution of the script ends. Instead, the link will remain open for future use (sybase_close() will not close links established by sybase_pconnect()).
This type of links is therefore called 'persistent'.
Список параметров
-
servername -
The servername argument has to be a valid servername that is defined in the 'interfaces' file.
-
username -
Sybase user name
-
password -
Password associated with
username. -
charset -
Specifies the charset for the connection
-
appname -
Specifies an appname for the Sybase connection. This allow you to make separate connections in the same script to the same database. This may come handy when you have started a transaction in your current connection, and you need to be able to do a separate query which cannot be performed inside this transaction.
Возвращаемые значения
Returns a positive Sybase persistent link identifier on success, or
FALSE on error.
Вернуться к: Sybase Функции