dbplus_update() replaces the old
tuple with the data from the new one, only if the
old completely matches a tuple within
relation.
Parameters
- relation
A relation opened by dbplus_open().
- old
The old tuple.
- new
The new tuple.
Notes
Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.