add_root(faq );
$root->setattr(page, 32 );
//子节点
$one = $root->new_child(question, );
//为子节点设置属性
$one->setattr(number, 1);
//question也创建子节点，并且给它赋值
$one->new_child(text, 1. where to get libxml-2.0.0?);
$one->new_child(answer, you can download the latest
release of libxml either as a source archive or
rpm package from http://www.xmlsoft.org.
the current version is libxml2-2.2.1. );
$two = $root->new_child(question, );
$two->setattr(number, 2);
$two->new_child(text, 2. how to configure php4? );
// 创建一个不直接赋值的节点
$twoone = $two->new_child(answer, );
// 然后给它单独赋值
$twoone->set_content(dir is the libxml install directory
(if you just use --with-dom it defaults
to /usr), i needed to use --with-dom=/usr/local );
$three = $root->new_child(question, );
$three->setattr(number, 7 );
$three->new_child(text, 7. how to use dom xml function ? );
$three->new_child(answer, read this document source for
a simple example. );
//输出到browser
print(
.htmlspecialchars($doc->dumpmem() ).
);
// write to file
//写回到文件
$fp = fopen(test_dom.xml, w+ );
fwrite($fp, $doc->dumpmem(), strlen($doc->dumpmem() ));
fclose($fp);
// ------------------------------------------------------
//现在使用xpath从xml文档中得到内容
$doc = xmldoc(join(, file(test_dom.xml)) );
$ctx = xpath_new_context($doc );
//所有对象
$foo = xpath_eval($ctx, //child::*);
print_r($foo);
print(
);
//text node 对象
$foo = xpath_eval($ctx, //text);
print_r($foo);
print(
);
// 第一个text node对象
$foo = xpath_eval($ctx, //text[1]);
print_r($foo);
print(
);
// 第二个text node对象
$foo = xpath_eval($ctx, //text[2]);
print_r($foo);
print(
);
// 第三个answer对象
$foo = xpath_eval($ctx, //answer[3]);
print_r($foo);
print(
);
//第三个text node的类型，名称和内容
$foo = xpath_eval($ctx, //text[3]);
$tmp = $foo->nodeset;
print_r($tmp);
print(
);
print($tmp[0]->type) . ; ;
print($tmp[0]->name) . ; ;
print($tmp[0]->content);
?>
需要说明，php dom 只能在php php4.0.x + linux上运行