获取twiter内容

<?php
dl("simplexml.so");
date_default_timezone_set('PRC');//北京时区
$Btime = microtime(true);
$arrStarName = array("swingbj","donghae861015");
//声明xml文件
$string = <<<XML
<?xml version='1.0' encoding="UTF-8"?> 
<statuses>
</statuses>
XML;

$localtime = date('y-m-d H:i:s',strtotime(" -96 hour"));//前一小时
$strlocal = strtotime($localtime);//转化为时间戳

foreach($arrStarName as $v)
{
	$newxml = simplexml_load_string($string);
	$strUrl = "http://twitter.com/statuses/user_timeline/".$v.".xml";
	$strContent = file_get_contents($strUrl);
	if ($strContent === false)
	{
		echo "link error;";
		exit;
	}
	$iNum = file_put_contents("textxml/old_".$v.".xml",$strContent);
	//parse xml
	$xml = simplexml_load_file("textxml/old_".$v.'.xml');
	$k = 0;
	
	foreach($xml->status as $status)
	{
		$picTag = "http://twitpic.com/";
		$iPid = 0;
		//处理不同图片服务器的图片twitpic plixi yfrog 
		if (preg_match("/http\:\/\/twitpic.com/",$status->text))//twitpic图片
		{
			$iPosion = stripos($status->text,$picTag);
			$iPid = substr($status->text,$iPosion+19,6);
			$strPicUrl = "http://twitpic.com/show/large/".$iPid;
			$strPic = file_get_contents($strPicUrl);
			$filename = "images/".$v;
			if(!file_exists($filename))
			{
				mkdir($filename,0777);
			}
			file_put_contents("images/".$v."/".$iPid.".jpg",$strPic);
		}
		elseif(preg_match("/http\:\/\/yfrog.com\//",$status->text))//yfrog图片
		{
			$iNum = stripos($status->text,"http://yfrog.com/");
			$iPid = substr($status->text,$iNum+17,6);
			$strPicUrl = "http://yfrog.com/".$iPid.":iphone";
			$strPic = file_get_contents($strPicUrl);
			$filename = "images/".$v;
			if(!file_exists($filename))
			{
				mkdir($filename,0777);
			}
			file_put_contents("images/".$v."/".$iPid.".jpg",$strPic);		
		}
		elseif(preg_match("/http\:\/\/plixi.com\//",$status->text))//plixi图片
		{
			$iNum = stripos($status->text,"http://plixi.com/",$status->text);
			$iPid = substr($status->text,$iNum+17,7);
			$strPicUrl = "http://api.plixi.com/api/tpapi.svc/imagefromurl?size=big&url=http://tweetphoto.com/".$iPid;
			$strPic = file_get_contents($strPicUrl);
			$filename = "images/".$v;
			if(!file_exists($filename))
			{
				mkdir($filename,0777);
			}
			file_put_contents("images/",$v."/".$iPid.".jpg",$strPic);
			
		}
		else 
		{
			$iPid = "";
		}
		//get the nmessage of one hours
		$time = date('y-m-d H:i:s',strtotime($status->created_at));
		$sendtime = strtotime($time);
		if($sendtime > $strlocal)
		{
			$newxml->status[$k]['tid'] = $status->id;
			$newxml->status[$k]['text']= $status->text;
			$newxml->status[$k]['created']=$status->created_at;
			$newxml->status[$k]['image'] = $iPid===""?'':"images/".$v."/".$iPid.".jpg";
			$newxml->status[$k]['source']= $status->source;
		}
			$k++;
	}
	
	$newxml->asXml("textxml/".$v.".xml");//生成新xml文件
	if(file_exists("textxml/old_".$v.".xml"))//删除原xml文件
	{
		unlink("textxml/old_".$v.".xml");
	}
}	

$Etime = microtime(true);
$useTime = $Etime - $Btime;
	echo "save ok use time:".$useTime;
?>