PHP读取XML文件的三种方式

一  用  simplexml_load_file 读取xml文件   <?php $xml_array=simplexml_load_file('person.xml'); //将XML中的数据,读取到数组对象中 foreach($xml_array as $tmp) { echo $tmp->name."-".$tmp->sex."-".$tmp->old."<br>"; } ?> 二  DOMDocument读取xml <?php $doc = new DOMDocument(); $doc->load('xml.xml'); //读取xml文件 $humans = $doc->getElementsByTagName( "humans" ); //取得humans标签的对象数组 foreach( $humans as $human ) { $names = $human->getElementsByTagName( "name" ); //取得name的标签的对象数组 $name = $names->item(0)->nodeValue; //取得node中的值，如<name> </name> $sexs = $human->getElementsByTagName( "sex" ); $sex = $sexs->item(0)->nodeValue; $olds = $human->getElementsByTagName( "old" ); $old = $olds->item(0)->nodeValue; echo "$name - $sex - $old\n"; } 三   利用正则来获取数据 <?php header("content-type:text/html;charset=utf-8"); $xml = ''; $f = fopen("xml.xml", "r"); while($data = fread($f, 2096)) { $xml .= $data; } fclose($f); preg_match_all('/\<humans\>(.*?)\<\/humans\>/s', $xml, $humans); foreach($humans[1] as $human) { preg_match_all('/\<name\>(.*?)\<\/name\>/s', $human, $names); preg_match_all('/\<sex\>(.*?)\<\/sex\>/s', $human, $sexes); preg_match_all('/\<old\>(.*?)\<\/old\>/s', $human, $olds); } foreach($names[1] as $k=>$name) { echo $names[1][$k].'-'.$sexes[1][$k].'-'.$olds[1][$k]."\n"; }