php通过socket获取网页内容的简单示例，请看下面代码：
$url='www.feishuai.vip';
$fp=fsockopen($url,80,&$errno,&$errstr,10);
if(!$fp){
echo "$errstr ($errno)<br>\n";
}else{
fputs($fp,"GET / HTTP/1.0\nHost: ".$url."\n\n");
while(!feof($fp)){
echo fgets($fp,128);
}
fclose($fp);
}