yaz_sort
(PHP 4 >= 4.0.7, PECL yaz:0.9-1.0.9)
yaz_sort — Sets sorting criteria
Description
void yaz_sort
( resource $id
, string $criteria
)
Call this function before yaz_search().
Using this function alone does not have any effect. When used in conjunction
with yaz_search(), 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().
Parameters
-
id
-
The connection resource returned by yaz_connect().
-
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
-
a
-
Sort ascending
-
d
-
Sort descending
-
i
-
Case insensitive sorting
-
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:
If the secondary sorting criteria should be author, case sensitive and
ascending you would use:
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