YAZ is available at http://indexdata.dk/yaz/. You can find news information, example scripts, etc. for this extension at http://indexdata.dk/phpyaz/.
Замечание: This extension has been moved to the PECL repository and is no longer bundled with
PHP as of PHP 5.0.0.
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:
|
Пример 1. YAZ compilation
gunzip -c php-4.3.X.tar.gz|tar xf -
gunzip -c yaz-2.0.tar.gz|tar xf -
cd yaz-2.0
./configure --prefix=/usr
make
make install
cd ../php-4.3.X.
./configure --with-yaz=/usr/bin
make
make install
|
|
If you are using YAZ as a shared extension, add (or uncomment) the following line in php.ini on Unix:
And for Windows:
On Windows, php_yaz.dll depend on yaz.dll. You'll find yaz.dll in sub directory dlls in the Win32 zip archive. Copy yaz.dll to a directory in your PATH environment (c:\winnt\system32 or c:\windows\system32).
| Внимание
|
| Расширение IMAP не может использоваться вместе с расширениями
перекодировки или YAZ. Это связано с тем фактом, что они оба
используют 1 и тот же внутренний символ.
|
Замечание: The above problem is solved in version 2.0 of YAZ.
-Поведение этих функций зависит от установок в php.ini.
Таблица 1. YAZ configuration options
| Name | Default | Changeable | Changelog
|
|---|
| yaz.max_links | "100" | PHP_INI_ALL | Available since PHP4.3.0.
|
| yaz.log_file | NULL | PHP_INI_ALL | Available since PHP4.3.0.
|
Для подробного описания констант
PHP_INI_*, обратитесь к документации функции ini_set().
Данное расширение не определяет никакие типы ресурсов.
Данное расширение не определяет никакие константы.
PHP/YAZ keeps track of connections with targets (Z-Associations). A resource represents a connection to a target.
The script below demonstrates the parallel searching feature of the API. When invoked with no arguments it prints a query form; else (arguments are supplied) it searches the targets as given in array host.
|
Пример 2. Parallel searching using Yaz
<?
$host=$_REQUEST[host];
$query=$_REQUEST[query];
$num_hosts = count($host);
if (empty($query) || count($host) == 0){
echo '<form method="get">
<input type="checkbox"
name="host[]" value="bagel.indexdata.dk/gils" />
GILS test
<input type="checkbox"
name="host[]" value="localhost:9999/Default" />
local test
<input type="checkbox" checked="checked"
name="host[]" value="z3950.loc.gov:7090/voyager" />
Library of Congress
<br>
RPN Query:
<input type="text" size="30" name="query" />
<input type="submit" name="action" value="Search" />
</form>
';
}else{
echo 'You searched for ' . htmlspecialchars($query) . '<br>';
for ($i = 0; $i < $num_hosts; $i++){
$id[] = yaz_connect($host[$i]);
yaz_syntax($id[$i], "usmarc");
yaz_range($id[$i], 1, 10);
yaz_search($id[$i], "rpn", $query);
}
yaz_wait();
for ($i = 0; $i < $num_hosts; $i++){
echo '<hr />' . $host[$i] . ':';
$error = yaz_error($id[$i]);
if (!empty($error)){
echo "Error: $error";
}else{
$hits = yaz_hits($id[$i]);
echo "Result Count $hits";
}
echo '<dl>';
for ($p = 1; $p <= 10; $p++){
$rec = yaz_record($id[$i], $p, "string");
if (empty($rec)) continue;
echo "<dt><b>$p</b></dt><dd>";
echo nl2br($rec);
echo "</dd>";
}
echo '</dl>';
}}
?>
|
|
Содержание
yaz_addinfo -- Returns additional error information
yaz_ccl_conf -- Configure CCL parser
yaz_ccl_parse -- Invoke CCL Parser
yaz_close -- Close YAZ connection
yaz_connect -- Prepares for a connection to a Z39.50 server
yaz_database -- Specifies the databases within a session
yaz_element -- Specifies Element-Set Name for retrieval
yaz_errno -- Returns error number
yaz_error -- Returns error description
yaz_es_result -- Inspects Extended Services Result
yaz_get_option -- Returns value of option for connection
yaz_hits -- Returns number of hits for last search
yaz_itemorder -- Prepares for Z39.50 Item Order with an ILL-Request package
yaz_present -- Prepares for retrieval (Z39.50 present)
yaz_range -- Specifies a range of records to retrieve
yaz_record -- Returns a record
yaz_scan_result -- Returns Scan Response result
yaz_scan -- Prepares for a scan
yaz_schema -- Specifies schema for retrieval
yaz_search -- Prepares for a search
yaz_set_option -- Sets one or more options for connection
yaz_sort -- Sets sorting criteria
yaz_syntax -- Specifies the preferred record syntax for retrieval
yaz_wait -- Wait for Z39.50 requests to complete
Пред.
Начало
След.
xslt_setopt
Уровень выше
yaz_addinfo
