PHP DOMDocument实现XML读写操作
domdocument
在php中操作xml文档我们可以直接调用DOMDocument类或使用simplexml_load_string类来操作,这些都不需要加载算是内置函数了,我们直接使用.
PHP脚本读取XML最原始,最笨的方法,代码如下:
$doc = new DOMDocument(); $doc->load('test.xml'); $rows = $doc->getElementsByTagName("ds"); $d = array(); $i = 0; foreach($rows as $row) { $web = $row->getElementsByTagName('web'); $webUrl = $row->getElementsByTagName('webUrl'); $d[$i]['web'] = $web->item(0)->nodeValue; $d[$i]['webUrl'] = $webUrl->item(0)->nodeValue; $i++; } print_R($d);
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简单,容易,速度快,代码如下:
$xmlData = file_get_contents('test.xml'); $xml = simplexml_load_string($xmlData); $xmlArr = objectToArray($xml);
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objectToArray函数代码如下:
function objectToArray($object) { if(!$object) return ''; $result = array(); $object = is_object($object) ? get_object_vars($object) : $object; foreach ($object as $key => $val) { $val = (is_object($val) || is_array($val)) ? objectToArray($val) : $val; $result[$key] = $val; } return $result; }
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上面讲到了读取xml,下面再介绍写xml实例,代码如下:
$arr = array( array('id'=>1,'web'=>'好脚本','webUrl'=>'http://www.phprm.com'), array('id'=>2,'web'=>'PHP脚本','webUrl'=>'http://www.phprm.com/'), array('id'=>3,'web'=>'JavaScript脚本','webUrl'=>'http://www.phprm.com/'), array('id'=>4,'web'=>'js脚本','webUrl'=>'http://www.phprm.com/'), array('id'=>5,'web'=>'PHP脚本示例','webUrl'=>'http://www.phprm.com/'), array('id'=>5,'web'=>'JavaScript脚本示例','webUrl'=>'http://www.phprm.com/') ); /*使用dom生成xml,注意生成的xml中会没有空格。*/ $dom=new DOMDocument('1.0','utf-8'); $path= "logs/test.xml"; $data=$dom->createElement('data'); $dom->appendChild($data); foreach($arr as $v) { $ds = $dom->createElement('ds'); $id = $dom->createAttribute('id'); $id->nodeValue = $v['id']; $ds->setAttributeNode($id); $data->appendChild($ds); foreach($v as $kk=>$vv) { ${$kk} = $dom->createElement($kk); $value= $dom->createTextNode($vv); ${$kk}->appendChild($value); $ds->appendChild(${$kk}); } } $dom->saveXML(); $dom->save($path);
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教程链接:
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