<?php

 $url = "http://www.baidu.com/s?wd=刘俊涛的博客";

 $header = array(

     'User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36',

 );

 $ch = curl_init();

 curl_setopt($ch, CURLOPT_URL, $url);

 curl_setopt($ch, CURLOPT_HTTPHEADER, $header);

 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

 // 执行

 $content = curl_exec($ch);

 if ($content == false) {

     echo "error:" . curl_error($ch);

 }

 // 关闭

 curl_close($ch);

 //输出结果

 echo ($content);