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： jb51.cc
 **/
<?PHP
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);
}

/***   来自编程之家 jb51.cc（jb51.cc）   ***/