(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)
dbplus_xlockrel — Request exclusive lock on relation
Request an exclusive lock on relation preventing even read access from other clients.
A relation opened by dbplus_open().
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.