(4.1.0 - 4.2.3 only, PECL)
dbplus_find -- Set a constraint on a relation
( resource relation, array constraints, mixed tuple )
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.
dbplus_find() will place a constraint on the
given relation. Further calls to functions like
dbplus_next() will only return tuples matching
the given constraints.
Constraints are triplets of strings containing of a domain name,
a comparison operator and a comparison value. The
constraints parameter array may consist of
a collection of string arrays, each of which contains a domain, an
operator and a value, or of a single string array containing a
multiple of three elements.
The comparison operator may be one of the following strings:
'==', '>', '>=', '<', '<=', '!=', '~' for a regular
expression match and 'BAND' or 'BOR' for bitwise operations.
See also dbplus_unselect().