PHP采集腾讯微博的实现代码

PHP采集腾讯微博只留文字部分，大家可以完善它！

 
<?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; 
} 
?>