Data transfer CURL example analysis in PHP
This article mainly introduces the analysis of data transmission CURL examples in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
Confirm whether the CURL extension is installed
Linux command:
[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 operation steps analysis:
CURL example
1. A simple curl, grab the Baidu homepage
2. Download a web page and replace "Baidu" in the content with "Ferry" and then output
3. Call WebService
Simple curl, grab the Baidu homepage
<?php $curl=curl_init('http://www.jb51.net'); curl_exec($curl); curl_close($curl); ?>
Download a web page and replace "Baidu" in the content with "Ferry" and then output
<?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);
?>Call WebService
<?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);
?>Download a file from the FTP server to the local
<?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);
?>Upload the local file to the FTP server
<?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);
?>Download an HTTPS resource on the network
<?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; ?>
Summary: The above is The entire content of this article is hoped to be helpful to everyone's study.
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The above is the detailed content of Data transfer CURL example analysis in PHP. For more information, please follow other related articles on the PHP Chinese website!
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