php解决xml提示 Invalid byte 1 of 1-byte UTF-8 sequence

         <?xml   version="1.0"   encoding="GB2312"?>

stdClass Object ( [$t] => 2011-12-12T13:00:00.000Z )

$t = $feed->item->{'$t'};

function xml_out($content, $charset = 'utf-8') {
 @header("Expires: -1");
 @header("Cache-Control: no-store, private, post-check=0, pre-check=0, max-age=0", FALSE);
 @header("Pragma: no-cache");
 @header("Content-type: application/xml; charset=$charset");
 echo '<' . "?xml version="1.0" encoding="$charset"?>n";
 echo "<root><![CDATA[" . trim($content) . "]]></root>";
 exit();
}

<?php
header("Content-type: text/xml");
echo "<?xml version="1.0" encoding="UTF-8"?>";
echo "<users><user><name>小小菜鸟</name><age>24</age><sex>男</sex></user><user><name>艳艳</name><age>23</age><sex>女</sex></user></users>";
?>

$XML = new SimpleXMLElement("<foo />"); echo($XML->asXML());

<?xml version="1.0"?> <foo/>

<?xml version="1.0" encoding="UTF-8"?> <foo/>

<?php
require_once("simple_html_dom.php");
ini_set('memory_limit','1000M');
ini_set("max_execution_time",6000000);

for($i=1;$i<=21;$i++){
 $html = file_get_html(http://www.111cn.net);
 $as = $html->find('.shopname a');
 $sum = 0;
 foreach($as as $a) {
  if($a->plaintext != "分店"){
   $a->href = "http://www.xx.com".$a->href;
   echo $a->outertext."------".$a->href."-------<br>";
   $sum++;
  }
 }
 echo "<br><br>第 {$i} 页结束 ，数目：{$sum}<hr>";
}
?>

$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);

$xmlData = file_get_contents('test.xml');
  
$xml = simplexml_load_string($xmlData);
  
$xmlArr = objectToArray($xml);

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;  
}

$arr = array(
         array('id'=>1,'web'=>'好脚本','webUrl'=>'http://www.111cn.net'),
         array('id'=>2,'web'=>'PHP脚本','webUrl'=>'http://www.111cn.net/'),
         array('id'=>3,'web'=>'JavaScript脚本','webUrl'=>'http://www.111cn.net/'),
         array('id'=>4,'web'=>'js脚本','webUrl'=>'http://www.111cn.net/'),
         array('id'=>5,'web'=>'PHP脚本示例','webUrl'=>'http://www.111cn.net/'),
         array('id'=>5,'web'=>'JavaScript脚本示例','webUrl'=>'http://www.111cn.net/')
         );
/*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);