PHP - Manual: yaz_search

2024-04-25

yaz_set_option »

« yaz_schema

yaz_search

(PHP 4 >= 4.0.1, PECL yaz >= 0.9.0)

yaz_search — Prepares for a search

说明

yaz_search(resource $id, string $type, string $query): bool

yaz_search() prepares for a search on the given connection.

Like yaz_connect() this function is non-blocking and only prepares for a search to be executed later when yaz_wait() is called.

参数

id

The connection resource returned by yaz_connect().

type

This parameter represents the query type - only "rpn" is supported now in which case the third argument specifies a Type-1 query in prefix query notation.

query

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.

**RPN Operators**
Construct	Description
`@and` query1 query2	intersection of query1 and query2
`@or` query1 query2	union of query1 and query2
`@not` query1 query2	query1 and not query2
`@set` name	result set reference
`@attrset` set query	specifies attribute-set for query. This construction is only allowed once - in the beginning of the whole query
`@attr` [set] type=value 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.

注意:
If you would like to use a more friendly notation, use the CCL parser - functions yaz_ccl_conf() and yaz_ccl_parse().

返回值

成功时返回 true，或者在失败时返回 false。

范例

示例 #1 Query Examples

You can search for simple terms, like this:

computer

which matches documents where "computer" occur. No attributes are specified.

The query

"knuth donald"

matches documents where "knuth donald" occur (provided that the server supports phrase search).

This query applies two attributes for the same phrase.

@attr 1=1003 @attr 4=1 "knuth donald"

First attribute is type 1 (Bib-1 use), attribute value is 1003 (Author). Second attribute has is type 4 (structure), value 1 (phrase), so this should match documents where Donald Knuth is author.

The query

@and @or a b @not @or c d e

would in infix notation look like

(a or b) and ((c or d) not 
    e)

Another, more complex, one:

@attrset gils @and @attr 1=4 art @attr 1=2000 company

The query as a whole uses the GILS attributeset. The query matches documents where art occur in the title (GILS,BIB-1) and in which company occur as Distributor (GILS).

add a note

User Contributed Notes 3 notes

down

jwohlers at mail dot wcc dot cc dot il dot us ¶

20 years ago


Quick Reference For Attribute Fields 
(eg: "@attr 2=" refers to the Relation attribute) 
1 = Use Field
2 = Relation
3 = Position
4 = Structure
5 = Truncate
6 = Completeness

down

k dot andris at gmail dot com ¶

13 years ago


To display holdings data set the syntax and the record format to "opac" (at least for Horizon ILS). It will give you an xml, containg <holding> elements with all info:


<?php

$z = yaz_connect(...

yaz_syntax($z, 'opac');

yaz_search($z, 'rpn', '@attr 1=4 "title%"');

yaz_wait();

$hits = yaz_hits($z);

yaz_range($z, 1, $hits);

yaz_present($z);

for($i = 1; $i <= $hits; $i++)

       my_display(yaz_record($z, $i, 'opac'));

yaz_close($z);


function my_display($s)

{

  $lines = explode("\n", trim($s));

    var_dump($lines);

}

?>

down

Colibri ¶

13 years ago


When querying a SRU/SRW server, the "type" parameter must(?) be specified as "cql", e.g.
yaz_search($handle, "cql", "bath.isbn=1234");

add a note

官方地址：https://www.php.net/manual/en/function.yaz-search.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 科技开发编程 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL C/C++ 面试 Golang 数据库 Git 算法正则表达式操作系统 Redis 互联网 MySql JavaScript 运维软件架构设计 Mac OS TCP/IP 国际 Excel Vim Windows Socket Oracle VR MongoDB 运营 Python MemCache 商业硬件电子设计 nginx 娱乐摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 [PHP] inet_pton/inet_ntop IP地址转换函数 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 PHPMailer设置utf8 PHPMailer字符集CharSet 如何在Composer中为GitLab实例设置访问令牌 array_multisort() 多字段排序 laravel框架查看sql语句方式 [原创]诡异的php-fpm超时问题 PHP获取指定函数定义在哪个文件中及行号利用php soap实现web service php设置cookie为httponly防止xss攻击 PHP5 扩展SOAP 调用 webservice PHP-FPM进程数的设定利用PHP SOAP实现WEB SERVICE PHP7添加redis扩展纯php实现DES以及TripleDES加密算法 PHPstorm 里面Terminal 不能使用 esc键吗退出编辑模式吗 php扩展开发 Composer的Packagist资源

略微加速

PHP官方手册 - 互联网笔记

yaz_search

说明

参数

返回值

范例

User Contributed Notes 3 notes