# sybase_pconnect

(PHP 4, PHP 5)

sybase_pconnect — Open persistent Sybase connection

### Description

resource sybase_pconnect ([ string `$servername` [, string `$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'.

### Parameters

`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`

### Return Values

Returns a positive Sybase persistent link identifier on success, or `FALSE` on error.

### ChangeLog

Version | Description
--- | ---
4.0.2 | The `charset` parameter was added.

### See Also

- sybase_connect()