php学习——xml

【创建xml】

$dom=new DOMDocument("1.0");
$book=$dom->appendChild($dom->createElement('book'));//创建根元素
$title=$book->appendChild($dom->createElement('title'));//在根元素下创建节点
$title->appendChild($dom->createTextNode('php cookbook'));//在节点下创建子节点
$title->setAttribute("cover","soft");//title节点下创建属性

$sklar=$book->appendChild($dom->createElement('author'));
//$sklar->appendChild($dom->createTextNode('sklar'));

$name=$sklar->appendChild($dom->createElement('name'));
$name->appendChild($dom->createTextNode('fsl'));

$trac=$book->appendChild($dom->createElement('author'));
$trac->setAttribute("cover","feng");
$trac->setAttribute("id","123");
$trac->appendChild($dom->createTextNode('trac'));

$dom->formatOutput=true;
echo $dom->saveXML();
$dom->save('test.xml');
$dom->saveHTMLFile('1.html');

1.htm

<?xml version="1.0"?>
<book>
<title cover="soft">php cookbook</title>
<author>
<name>fsl</name>
</author>
<author cover="feng" id="123">trac</author>
</book>

【xml文件处理方法-xpath】

$s=simplexml_load_file("12-1.xml");

$ids=$s->xpath("/people/person/@id");//处理属性
foreach ($ids as $id)
{
echo $id."<br>";
}

$pname=$s->xpath("/people/person/name");//处理节点

foreach ($pname as $name)
{
echo $name."<br>";
}

$per=$s->xpath("/people/person");
foreach ($per as $person){
list($age)=$person->xpath("age");
list($city)=$person->xpath("address/city");
list($pro)=$person->xpath("address/province");//处理含有子节点的节点

echo $city."_".$pro.":".$age."<br>";
}

$dom=new DOMDocument;
$dom->load("12-1.xml");
$xpath=new DOMXPath($dom);
$did=$xpath->query("/people/person/@id");

foreach ($did as $id)
{
echo $id->nodeValue."<br>";
}

$dname=$xpath->query("/people/person/age");

foreach ($dname as $name)
{
echo $name->nodeValue."<br>";
}

$dper=$xpath->query("/people/person");

foreach ($dper as $persion)
{
$fn=$xpath->query('name',$persion);
echo $fn->item(0)->firstChild->nodeValue." : ";

$fn2=$xpath->query('age',$persion);
echo $fn2->item(0)->firstChild->nodeValue."<br>";

echo $persion->nodeValue."<br>";
}

12-1.xml

<?xml version="1.0"?>
<?xml-stylesheet href="7-2.xsl" type="text/xsl"?>
<people>
<person id="001">
<name>张俊</name>
<age>20</age>
<address>
<province>河北</province>
<city>石家庄</city>
<street>人民东路</street>
<house_number>13#</house_number>
</address>
</person>
<person id="002">
<name>刘军</name>
<age>21</age>
<address>
<province>吉林</province>
<city>长春</city>
<street>解放南路</street>
<house_number>25#</house_number>
</address>
</person>
<person id="003">
<name>周泰</name>
<age>26</age>
<address>
<province>广东</province>
<city>深圳</city>
<street>深南路</street>
<house_number>37#</house_number>
</address>
</person>
<person id="004">
<name>张群</name>
<age>20</age>
<address>
<province>广西</province>
<city>南宁</city>
<street>江南大道</street>
<house_number>67#</house_number>
</address>
</person>
</people>

7-2.xsl

<?xml version='1.0'?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<xsl:value-of select="people/person/name"/>
</xsl:template>
</xsl:stylesheet>

【应用xslt】

必须打开php扩展php_xsl

$xsl=new DOMDocument;
$xsl->load('7-2.xsl');

$xslt=new XSLTProcessor();
$xslt->importStylesheet($xsl);

$xml=new DOMDocument;
$xml->load('12-1.xml');//双参数问题

$results=$xslt->transformToXml($xml);

$results2=$xslt->transformToURI($xml,'results.html');

$results3=$xslt->transformToDoc($xml);