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yaz_present
Prepares for retrieval (Z39.50 present)
(PHP 4 >= 4.0.5, PECL yaz:0.9-1.0.9)
bool yaz_present ( resource id )
This function prepares for retrieval of records after a successful search.
The yaz_range() function should be called prior to this function to specify the range of records to be retrieved.