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yaz_sort

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(PHP 4 >= 4.0.7, PECL yaz >= 0.9.0)

yaz_sort — Sets sorting criteria

Description

yaz_sort ( resource $id , string $criteria ) : void

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

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().

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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

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Return Values

No value is returned.

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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

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Document created the 30/01/2003, last modified the 26/10/2018
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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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