load('mg/intro.xml');
$a=$xml->getElementsByTagName('a');
foreach($a as $a){
$value=$a->firstChild->nodeValue;
}
$value=$value+1;
//echo $value;
$string='';
$string.="";
$string.="";
$string.="". $value ."";
$string.="";
$html_path="mg/intro.xml";
$handle=fopen($html_path,"w"); //写入方式打开xml路径 e
fwrite($handle,$string); //把刚才替换的内容写进生成的xml文件 e
fclose($handle);
?>