YAZ_SORT(3) 1 YAZ_SORT(3)
yaz_sort - Sets sorting criteria
SYNOPSIS
void yaz_sort (resource $id, string $criteria)
DESCRIPTION
This function sets sorting criteria and enables Z39.50 Sort.
Call this function beforeyaz_search(3). Using this function alone does not have any effect. When used in conjunction with yaz_search(3), a
Z39.50 Sort will be sent after a search response has been received and before any records are retrieved with Z39.50 Present
(yaz_present(3).
PARAMETERS
o $id
- The connection resource returned by yaz_connect(3).
o $criteria
- A string that takes the form field1 flags1 field2 flags2 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.
1=4,2=1) ; or the field may specify a plain string criteria (e.g. title. The flags is a sequence of the following characters
which may not be separated by any white space.
Sort Flags
o a - Sort ascending
o d - Sort descending
o i - Case insensitive sorting
o s - Case sensitive sorting
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
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
PHP Documentation Group YAZ_SORT(3)
