PHP采集腾讯微博的实现代码

<?php
header("Content-type:text/html;charset=utf-8");
$weibo = file_get_contents('http://t.qq.com/starank');
$preg = '/<div class="msgCnt">(.*)<\/div><div class="mediaWrap">/Uis';
preg_match_all($preg, $weibo, $string);
foreach ($string[1] as $key=>$value){
echo delhtml($value)."<br/><br/><br/>";
}
function delhtml($str) // 清除HTML标签
{
$st = -1; //开始
$et = -1; //结束
$stmp = array();
$stmp[] = " ";
$len = strlen($str);
for($i = 0;$i < $len;$i++)
{
$ss = substr($str, $i, 1);
if (ord($ss) == 60) // ord("<")==60
{
$st = $i;
}
if (ord($ss) == 62) // ord(">")==62
{
$et = $i;
if ($st != -1)
{
$stmp[] = substr($str, $st, $et - $st + 1);
}
}
}
$str = str_replace($stmp, "", $str);
return $str;
}
?>