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# msql_pconnect

(PHP 3, PHP 4, PHP 5)

msql_pconnect -- Open persistent mSQL connection

## 说明

resource msql_pconnect ( [string hostname] )

msql_pconnect() acts very much like msql_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. 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 (msql_close() will not close links established by this function).

## 参数

hostname

  The hostname can also include a port number. e.g. hostname,port.

  If not specified, the connection is established by the means of a Unix domain socket, being then more efficient then a localhost TCP socket connection.

  > 注: While this function will accept a colon (:) as a host/port separator, a comma (,) is the preferred method.

## 返回值

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

## 参见

msql_connect()
msql_close()

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