PHP中的数据传输CURL

确认是否安装了CURL扩展

[root@fengniu020 ~]# php -i | grep -i curl
Additional .ini files parsed => /etc/php.d/curl.ini,
curl
cURL support => enabled
cURL Information => 7.19.7

CURL实例

<?php
$curl=curl_init('http://www.baidu.com');
curl_exec($curl);
curl_close($curl);
?>

<?php
/**
* 实例描述：在网络上下载一个网页并把内容中的“百度”替换为“摆渡”之后输出
*/
$curlobj = curl_init();            // 初始化
curl_setopt($curlobj, CURLOPT_URL, "http://www.baidu.com");        // 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
$output=curl_exec($curlobj);  // 执行
curl_close($curlobj);          // 关闭cURL
echo str_replace("百度","摆渡",$output);
?>

<?php
/**
* 实例描述：通过调用WebService查询北京的当前天气
* 下方接口，免费用户24小时内访问是有限制的，需要存储信息
*/
$data = 'theCityName=北京';
//$data = 'theCityName=北京&';//多个用&号连接
$curlobj = curl_init();
curl_setopt($curlobj, CURLOPT_URL, "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName");
curl_setopt($curlobj, CURLOPT_HEADER, 0);
curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curlobj, CURLOPT_POST, 1);  //POST方式
curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data);
curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded; charset=utf-8",
"Content-length: ".strlen($data)
)); //HTTP请求头
curl_setopt ($curlobj, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
$rtn = curl_exec($curlobj);
if(!curl_errno($curlobj)){
// $info = curl_getinfo($curlobj);
// print_r($info);
echo $rtn;
} else {
echo 'Curl error: ' . curl_error($curlobj);
}
curl_close($curlobj);
?>

<?php
/**
* 代码实例-PHP-cURL实战
* 实例描述：登录慕课网并下载个人空间页面
*/
// $data=array('email' => 'promonkey',
//  'password' => '1q2w3e',
//  'remember'=>1);
$data='email=zjzhoufy@126.com&password=1q2w3e&remember=1';
$curlobj = curl_init();            // 初始化
curl_setopt($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开始之前设置
date_default_timezone_set('PRC'); // 使用Cookie时，必须先设置时区
curl_setopt($curlobj, CURLOPT_COOKIESESSION, TRUE); //让curl支持cookie和session
curl_setopt($curlobj, CURLOPT_COOKIEFILE, 'cookiefile');
curl_setopt($curlobj, CURLOPT_COOKIEJAR, 'cookiefile');
curl_setopt($curlobj, CURLOPT_COOKIE, session_name() . '=' . session_id());
curl_setopt($curlobj, CURLOPT_HEADER, 0); //不打印header头信息
curl_setopt($curlobj, CURLOPT_FOLLOWLOCATION, 1); // 这样能够让cURL支持页面链接跳转

curl_setopt($curlobj, CURLOPT_POST, 1);
curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data);
curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded; charset=utf-8",
"Content-length: ".strlen($data)
));
curl_exec($curlobj);   // 执行登录操作
curl_setopt($curlobj, CURLOPT_URL, "http://www.imooc.com/u/3296162/courses");//打开个人中心页面
curl_setopt($curlobj, CURLOPT_POST, 0);  //下载某个网页不是POST
curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("Content-type: text/xml"
));
$output=curl_exec($curlobj);  // 执行和保存
curl_close($curlobj);          // 关闭cURL
echo $output;
?>

<?php
/**
* 代码实例-PHP-cURL实战
* 实例描述：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($curlobj, CURLOPT_TIMEOUT, 300); // times out after 300s
curl_setopt($curlobj, CURLOPT_USERPWD, "peter.zhou:123456");//FTP用户名：密码
// Sets up the output file
$outfile = fopen('dest.txt', 'wb');//保存到本地的文件名
curl_setopt($curlobj, CURLOPT_FILE, $outfile);

$rtn = curl_exec($curlobj);
fclose($outfile);
if(!curl_errno($curlobj)){
// $info = curl_getinfo($curlobj);
// print_r($info);
echo "RETURN: " . $rtn;
} else {
echo 'Curl error: ' . curl_error($curlobj);
}
curl_close($curlobj);
?>

<?php
/**
* 代码实例-PHP-cURL实战
* 实例描述：把本地文件上传到FTP服务器上
*/
$curlobj = curl_init();
$localfile = 'ftp01.php';//需要上传的文件
$fp = fopen($localfile, 'r');

curl_setopt($curlobj, CURLOPT_URL, "ftp://192.168.1.100/ftp01_uploaded.php");//上传后保存的文件名
curl_setopt($curlobj, CURLOPT_HEADER, 0);
curl_setopt($curlobj, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curlobj, CURLOPT_TIMEOUT, 300); // times out after 300s
curl_setopt($curlobj, CURLOPT_USERPWD, "peter.zhou:123456");//FTP用户名：密码

curl_setopt($curlobj, CURLOPT_UPLOAD, 1);
curl_setopt($curlobj, CURLOPT_INFILE, $fp);//传输打开的文件
curl_setopt($curlobj, CURLOPT_INFILESIZE, filesize($localfile));//上传的文件大小
$rtn = curl_exec($curlobj);
fclose($fp);
if(!curl_errno($curlobj)){
echo "Uploaded successfully.";
} else {
echo 'Curl error: ' . curl_error($curlobj);
}
curl_close($curlobj);
?>

<?php
/**
* 代码实例-PHP-cURL实战
* 实例描述：下载网络上面的一个HTTPS的资源
*/
$curlobj = curl_init();            // 初始化
curl_setopt($curlobj, CURLOPT_URL, "https://ajax.aspnetcdn.com/ajax/jquery.validate/1.12.0/jquery.validate.js");       // 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

// 设置HTTPS支持
date_default_timezone_set('PRC'); // 使用Cookie时，必须先设置时区
curl_setopt($curlobj, CURLOPT_SSL_VERIFYPEER, 0); // 对认证证书来源的检查从证书中检查SSL加密算法是否存在,设置为0就是终止从服务器端进行验证
curl_setopt($curlobj, CURLOPT_SSL_VERIFYHOST, 2); //

$output=curl_exec($curlobj);  // 执行
curl_close($curlobj);          // 关闭cURL
echo $output;
?>