php长连接测试

<?php
//http://i3.sinaimg.cn/home/07index/sinahome_wscfy_031.gif
//$url=http://10.69.2.206:8080/sms/ns2/save_msg.txt

function ohttp_get($host,$port,$query,&$body)
{
	$fp=pfsockopen($host,$port,$errno,$errstr,1);
	if(!$fp)
	{
		var_dump($errno,$errstr);
		return -1;
	}
	$out = "GET /home/07index/sinahome_wscfy_031.gif HTTP/1.1\r\n";
	$out.= "Host: ${host}\r\n";
	$out.= "Connection: close\r\n";
	$out.= "\r\n";
	fwrite($fp,$out);
	
	$line=trim(fgets($fp));
	$header.=$line;
	list($proto,$rcode,$result)=explode(" ",$line);
	$len=-1;
	
	while( ($line=trim(fgets($fp))) != "" )
	{
		$header.=$line;
		if(strstr($line,"Content-Length:"))
		{
			list($cl,$len)=explode(" ",$line);
		}
		if(strstr($line,"Connection: close"))
		{
			$close=true;
		}
	}
	if($len < 0)
	{
		echo "ohttp_get must cope with Content-Length header!\n";
		return -1;
	}
	$body=fread($fp,$len);
	if($close)
		fclose($fp);
	return $rcode;
}
function phttp_get($host,$port,$query,&$body)
{
	$fp=pfsockopen($host,$port,$errno,$errstr,1);
	if(!$fp)
	{
		var_dump($errno,$errstr);
		return -1;
	}
	$out = "GET /home/07index/sinahome_wscfy_031.gif HTTP/1.1\r\n";
	$out.= "Host: ${host}\r\n";
	$out.= "Connection: Keep-Alive\r\n";
	$out.= "\r\n";
	fwrite($fp,$out);
	$line=trim(fgets($fp));
	$header.=$line;
	list($proto,$rcode,$result)=explode(" ",$line);
	$len=-1;
	
	while( ($line=trim(fgets($fp))) != "" )
		{
			$header.=$line;
			if(strstr($line,"Content-Length:"))
			{
				list($cl,$len)=explode(" ",$line);
			}
			if(strstr($line,"Connection: close"))
			{
				$close=true;
			}
		}
	if($len < 0)
	{
		echo "phttp_get must cope with Content-Length header!\n";
		return -1;
	}
	$body=fread($fp,$len);
	if($close)
		fclose($fp);
	return $rcode;
}

$time1=microtime(true);
for($i=0;$i<100;$i++)
{
	$host="i3.sinaimg.cn";
	$port=80;
	$query="/sms/ns2/save_msg.txt";
	$body="";
	$r=phttp_get($host,$port,$query,$body);
	if($r != 200)
	{
		echo "return code : $r\n";
	}
}
$time2=microtime(true);
for($i=0;$i<100;$i++)
{
	$host="i3.sinaimg.cn";
	$port=80;
	$query="/sms/ns2/save_msg.txt";
	$body="";
	$r=ohttp_get($host,$port,$query,$body);
	if($r != 200)
	{
		echo "return code : $r\n";
	}
}
$time3=microtime(true);

echo "<br />";echo "<hr>";
echo "Time1:".$time1;echo "<br />";
echo "Time2:".$time2;echo "<br />";
echo "Time3:".$time3;echo "<br />";
echo "<br />";echo "<hr>";
echo "keep alive: ".($time2-$time1)."\n";
echo "close: ".($time3-$time2)."\n";

?>