(PHP 4 >= 4.0.1, PECL yaz >= 0.9.0)
yaz_search — Prepares for a search
$query) : bool
yaz_search() prepares for a search on the given connection.
The connection resource returned by yaz_connect().
This parameter represents the query type - only
is supported now in which case the third argument specifies a Type-1
query in prefix query notation.
The RPN query is a textual representation of the Type-1 query as
defined by the Z39.50 standard. However, in the text representation
as used by YAZ a prefix notation is used, that is the operator
precedes the operands. The query string is a sequence of tokens where
white space is ignored unless surrounded by double quotes. Tokens beginning
with an at-character (
@) are considered operators,
otherwise they are treated as search terms.
||intersection of query1 and query2|
||union of query1 and query2|
||query1 and not query2|
||result set reference|
||specifies attribute-set for query. This construction is only allowed once - in the beginning of the whole query|
||applies attribute to query. The type and value are integers specifying the attribute-type and attribute-value respectively. The set, if given, specifies the attribute-set.|
You can find information about attributes at the » Z39.50 Maintenance Agency site.
TRUE on success or
FALSE on failure.
Example #1 Query Examples
You can search for simple terms, like this:
This query applies two attributes for the same phrase.
@and @or a b @not @or c d e
(a or b) and ((c or d) not e).
Another, more complex, one:
@attrset gils @and @attr 1=4 art @attr 1=2000 company
artoccur in the title (GILS,BIB-1) and in which
companyoccur as Distributor (GILS).