php通过socket获取网页内容的简单示例

php通过socket获取网页内容的简单示例，请看下面代码：

$url='www.scutephp.com';
$fp=fsockopen($url,80,&$errno,&$errstr,10);
if(!$fp){
	echo "$errstr ($errno)
\n";
}else{
	fputs($fp,"GET / HTTP/1.0\nHost: ".$url."\n\n");
	while(!feof($fp)){
		echo fgets($fp,128);
	}
	fclose($fp);
}