PHP的curl常用的5种写法

// 1，抓取无访问控制文件
 
     $ch= curl_init(); 
     curl_setopt($ch, CURLOPT_URL,"http://localhost/mytest/phpinfo.php"); 
     curl_setopt($ch, CURLOPT_HEADER, false); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//如果把这行注释掉的话，就会直接输出 
     $result=curl_exec($ch); 
     curl_close($ch); 
 
// 2，使用代理进行抓取
 
     $ch= curl_init(); 
     curl_setopt($ch, CURLOPT_URL,"http://blog.51yip.com"); 
     curl_setopt($ch, CURLOPT_HEADER, false); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
     curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, TRUE); 
     curl_setopt($ch, CURLOPT_PROXY, 125.21.23.6:8080); 
     //url_setopt($ch, CURLOPT_PROXYUSERPWD, 'user:password');如果要密码的话，加上这个 
     $result=curl_exec($ch); 
     curl_close($ch); 
 
// 3，post数据后，抓取数据
 
     $ch= curl_init(); 
     /*在这里需要注意的是，要提交的数据不能是二维数组或者更高
     *例如array('name'=>serialize(array('tank','zhang')),'sex'=>1,'birth'=>'20101010')
     *例如array('name'=>array('tank','zhang'),'sex'=>1,'birth'=>'20101010')这样会报错的*/
     $data=array('name'=>'test','sex'=>1,'birth'=>'20101010'); 
     curl_setopt($ch, CURLOPT_URL,'http://localhost/mytest/curl/upload.php'); 
     curl_setopt($ch, CURLOPT_POST, 1); 
     curl_setopt($ch, CURLOPT_POSTFIELDS,$data); 
     curl_exec($ch); 
 
// 4.抓取一些有页面访问控制的页面
 
     $ch= curl_init(); 
     curl_setopt($ch, CURLOPT_URL,"http://club-china"); 
     /*CURLOPT_USERPWD主要用来破解页面访问控制的
     *例如平时我们所以htpasswd产生页面控制等。*/
     //curl_setopt($ch, CURLOPT_USERPWD, '231144:2091XTAjmd='); 
     curl_setopt($ch, CURLOPT_HTTPGET, 1); 
     curl_setopt($ch, CURLOPT_REFERER,"http://club-china"); 
     curl_setopt($ch, CURLOPT_HEADER, 0); 
     $result=curl_exec($ch); 
     curl_close($ch); 
 
// 5.模拟登录到sina
 
    functionchecklogin($user,$password) 
     { 
     if( emptyempty($user) || emptyempty($password) ) 
     { 
     return0; 
     } 
     $ch= curl_init( ); 
     curl_setopt($ch, CURLOPT_REFERER,"http://mail.sina.com.cn/index.html"); 
     curl_setopt($ch, CURLOPT_HEADER, true ); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true ); 
     curl_setopt($ch, CURLOPT_USERAGENT, USERAGENT ); 
     curl_setopt($ch, CURLOPT_COOKIEJAR, COOKIEJAR ); 
     curl_setopt($ch, CURLOPT_TIMEOUT, TIMEOUT ); 
     curl_setopt($ch, CURLOPT_URL,"http://mail.sina.com.cn/cgi-bin/login.cgi"); 
     curl_setopt($ch, CURLOPT_POST, true ); 
     curl_setopt($ch, CURLOPT_POSTFIELDS,"&logintype=uid&u=".urlencode($user)."&psw=".$password); 
     $contents= curl_exec($ch); 
     curl_close($ch); 
     if( !preg_match("/Location: (.*)\/cgi\/index\.php\?check_time=(.*)
/",$contents,$matches) ) 
     { 
     return0; 
     }else{ 
     return1; 
     } 
     }  
        
     define("USERAGENT",$_SERVER['HTTP_USER_AGENT'] ); 
     define("COOKIEJAR", tempnam("/tmp","cookie") ); 
     define("TIMEOUT", 500 );  
        
     echochecklogin("zhangying215","xtaj227");