PHP的curl常用的5个例子

// 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($ch);
if( !preg_match("/Location: (.*)\\/cgi\\/index\\.php\\?check_time=(.*)\n/",$contents,$matches) )
{
return0;
}else{
return1;
}
}

define("USERAGENT",$_SERVER['HTTP_USER_AGENT'] );
define("COOKIEJAR", tempnam("/tmp","cookie") );
define("TIMEOUT", 500 );

echochecklogin("zhangying215","xtaj227");