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# dbplus_update

(PHP 4 >= 4.1.0)

dbplus_update -- Update specified tuple in relation

## Description

``int dbplus_update` (resource relation, array old, array new)`

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk.

dbplus_update() replaces the tuple given by `old` with the data from `new` if and only if `old` completely matches a tuple within `relation`.

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