xapian php 检索,php 利用xapian按照数字范围进行检索的简单示例
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xapian按照数字范围进行检索的php范例代码，对通过add_value方法添加的属性进行范围搜索。
/**
* xapian按照数字范围进行检索的php范例代码
*
* @param
* @arrange 512-笔记网： www.512pic.com
**/
if (php_sapi_name() != "cli") {
print "This example script is written to run under the command line ('cli') version of\n";
print "the PHP interpreter, but you're using the '".php_sapi_name()."' version\n";
exit(1);
}
include "xapian.php";
if ($argc != 2) {
print "Usage: {$argv[0]} PATH_TO_DATABASE\n";
exit(1);
}
try {
// Open the database for update, creating a new database if necessary.
$database = new XapianWritableDatabase($argv[1], Xapian::DB_CREATE_OR_OVERWRITE);
// add a document with a term and a timestamp value
$doc = new XapianDocument();
$doc->add_term("foo");
$doc->add_value(1, Xapian::sortable_serialise(1000000000));
$database->add_document($doc);
// add another: same term, different timestamp value
$doc = new XapianDocument();
$doc->add_term("foo");
$doc->add_value(1, Xapian::sortable_serialise(2000000000));
$database->add_document($doc);
// Set the database handle to Null to ensure that it gets closed
// down cleanly or unflushed changes may be lost.
$database = Null;
// open database for reading
$database = new XapianDatabase($argv[1]);
$enquire = new XapianEnquire($database);
// example 1 using a query processor
$qp = new XapianQueryParser();
$qp->set_database($database);
$datenumproc = new XapianNumberValueRangeProcessor(1);
$qp->add_valuerangeprocessor($datenumproc);
// without range: get both docs
$query = $qp->parse_query("foo");
$enquire->set_query($query);
print $enquire->get_mset(0, 10)->size();
print "\n";
// with range: get first doc
$query = $qp->parse_query("foo 1000000000..1500000000");
$enquire->set_query($query);
print $enquire->get_mset(0, 10)->size();
print "\n";
// example 2 - direct query construction (get first doc)
$query = new XapianQuery(XapianQuery::OP_VALUE_RANGE,
1,
Xapian::sortable_serialise(1000000000),
Xapian::sortable_serialise(1500000000));
$enquire->set_query($query);
print $enquire->get_mset(0, 10)->size();
print "\n";
} catch (Exception $e) {
print $e->getMessage() . "\n";
exit(1);
}
/*** 来自512笔记(www.512pic.com) ***/
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关键词：xapian
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