yaz_sort

yaz_sort

Sets sorting criteria

void **yaz_sort** resource $id string $criteria

This function sets sorting criteria and enables Z39.50 Sort.

Call this function . Using this function alone does not have any effect. When used in conjunction with , a Z39.50 Sort will be sent after a search response has been received and before any records are retrieved with Z39.50 Present (. beforeyaz_search``yaz_search``yaz_present

id The connection resource returned by . yaz_connect

criteriaA string that takes the form where field1 specifies the primary attributes for sort, field2 seconds, etc..

   The field specifies either a numerical attribute combinations consisting
   of type=value pairs separated by comma (e.g. )
   ; or the field may specify a plain string criteria (e.g. 
   . The flags is a sequence of the following 
   characters which may not be separated by any white space.
  `1=4,2=1``title`


   
  ### Sort Flags

aSort ascending

dSort descending

iCase insensitive sorting

sCase sensitive sorting

return.void

Voorbeeld: Sort Criterias

To sort on Bib1 attribute title, case insensitive, and ascending you
would use the following sort criteria:

1=4 ia

If the secondary sorting criteria should be author, case sensitive and 
ascending you would use:

1=4 ia 1=1003 sa