Open persistent mSQL connection msql_pconnect

(PHP 4, PHP 5, PHP 7)

msql_pconnect — Open persistent mSQL connection

说明

msql_pconnect([ string $hostname ]): resource

msql_pconnect()acts very much likemsql_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 more efficient than a localhost TCP socket connection.

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, orFALSEon error.

参见

msql_connect()- Open mSQL connection

msql_close()- Close mSQL connection