This extension offers a PHP interface to the YAZ toolkit that implements the Z39.50 Protocol for Information Retrieval. With this extension you can easily implement a Z39.50 origin (client) that searches or scans Z39.50 targets (servers) in parallel.
The module hides most of the complexity of Z39.50 so it should be fairly easy to use. It supports persistent stateless connections very similar to those offered by the various RDB APIs that are available for PHP. This means that sessions are stateless but shared amongst users, thus saving the connect and initialize phase steps in most cases.
YAZ is available at http://www.indexdata.dk/yaz/. You can find news information, example scripts, etc. for this extension at http://www.indexdata.dk/phpyaz/.
Compile YAZ (ANSI/NISO Z39.50 support) and install it. Build PHP with your favourite modules and add option --with-yaz[=DIR]. Your task is roughly the following:
php.ini中的設定會影響這些函數的行為。
表格 1. YAZ configuration options
Name | Default | Changeable |
---|---|---|
yaz.max_links | "100" | PHP_INI_ALL |
yaz.log_file | "" | PHP_INI_ALL |
PHP/YAZ keeps track of connections with targets (Z-Associations). A resource represents a connection to a target.