PHP curl 常用操作

网页内容替换

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, "http://www.baidu.com");
//执行后不直接打印出来
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($curl);
curl_close($curl);
echo str_replace("百度", "屌丝", $output);

通过webservice查询北京当前的天气

        $data = 'theCityName=北京';
	$curlobj = curl_init();
	curl_setopt($curlobj, CURLOPT_URL, "http://www.webxml.com.cn/webServices/WeatherWebService.asmx/getWeatherbyCityName");
	//不返回请求头信息
	curl_setopt($curlobj, CURLOPT_HEADER, 0);
	//以文件流形式输出，不直接输出
	curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);
	//post方式请求
	curl_setopt($curlobj, CURLOPT_POST, 1);
	//传递一个作为http ‘post’操作的所有数据的字符串
	curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data);
	//这句不写会报错（请求中包含user-agent头的字符串）--未将对象引用设置到对象的实例
	curl_setopt($curlobj,CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
	curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencode;charset=utf-8","Content-length:".strlen($data)));
	$rtn = curl_exec($curlobj);
	if(!curl_errno($curlobj)){
		//$info = curl_getinfo($curlobj);
		//print_r($info);
		echo $rtn;
	}else{
		echo 'Curl error'.curl_error($curlobj);
	}
	curl_close($curlobj);

把本地文件上传FTP服务器

        $curlobj = curl_init();
	$localfile = 'ftp01.php';
	$fp = fopen($localfile, 'r');
	curl_setopt($curlobj, CURLOPT_URL, "ftp://192.168.1.100/ftp01_uploaded_01.php");
	curl_setopt($curlobj, CURLOPT_HEADER, 0);
	curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);
	//最大延迟多少秒
	curl_setopt($curlobj, CURLOPT_TIMEOUT, 300);
	curl_setopt($curlobj, CURLOPT_USERPWD, "peter.zhou:123456");

	//让PHP为上传做准备
	curl_setopt($curlobj, CURLOPT_UPLOAD, 1);
	//输出文件
	curl_setopt($curlobj, CURLOPT_INFILE, filesize($localfile));
	$rtn = curl_exec($curlobj);
	fclose($fp);
	if(!curl_errno($curlobj)){
		echo "uploaded successfully";
	}else{
		echo 'curl  error:' . curl_error($curlobj);
	}

　　从ftp服务器下载一个文件到本地

        $curlobj = curl_init();
	curl_setopt($curlobj, CURLOPT_URL, "ftp://192.168.1.100/downloaddemo.txt");
	curl_setopt($curlobj, CURLOPT_HEADER, 0);
	curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($curlobj, CURLOPT_TIMEOUT, 300);
	curl_setopt($curlobj, CURLOPT_USERPWD, "peter.zhou:123456");//FTP用户名：密码
	$outfile = fopen('test.txt', 'wb');//保存到本地的文件名
	//输出文件
	curl_setopt($curlobj, CURLOPT_FILE, $outfile);
	$rtn = curl_exec($curlobj);
	curl_close($curlobj);
	if(!curl_errno($curlobj)){
		//$info = curl_getinfo($curlobj);
		//print_r($info);
		echo $rtn;
	}else{
		echo 'Curl error'.curl_error($curlobj);
	}

　　下载网络上的HTTPS的资源

        $curlobj = curl_init();
	curl_setopt($curlobj, CURLOPT_URL, "https://ajax.aspnetcdn.com/ajax/jquery.validate/1.12.0/jquery.validate.js");
	curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, true);
	//设置HTTPS支持
	date_default_timezone_set('PRC');
	curl_setopt($curlobj,CURLOPT_SSL_VERIFYPEER,0);

	$output = curl_exec($curlobj);
	curl_close($curlobj);
	echo $output;

　　登录慕课网并下载个人空间页面

        $data = 'username=demo_peter@126.com&password=123&remember=1'
	$curlobj = curl_init();
	curl_setopt($curlobj,CURLOPT_URL,"http://www.imooc.com/user/login");//设置访问网页的URL
	curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, true);//执行之后不直接打印出来

	//Cookie相关设置，这部分设置需要在所有会话之前设置
	date_default_timezone_set("PRC");
	curl_setopt($curlobj, CURLOPT_COOKIESESSION, true);
	curl_setopt($curlobj, CURLOPT_COOKIEFILE, "cookiefile");
	curl_setopt($curlobj, CURLOPT_COOKIEJAR,"cookiefile");
	curl_setopt($curlobj, CURLOPT_COOKIE, session_name() . '=' . session_id());
	curl_setopt($curlobj, CURLOPT_HEADER, 0);
	curl_setopt($curlobj, CURLOPT_FOLLOWLOCATION, 1);
	curl_setopt($curlobj, CURLOPT_POST, 1);
	curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data);
	curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencode;charset=utf-8","Content-length:".strlen($data)));
	curl_exec($curlobj);
	curl_setopt($curlobj, CURLOPT_POST, "http://www.imooc.com/sapce/index");
	curl_setopt($curlobj, CURLOPT_POST, 0);
	curl_setopt($curlobj, CURLOPT_HTTPHEADER, 0);
	curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("Content-type:text/xml"))
	curl_close($curlobj);
	echo $output;