标签:des style blog http ar io color os 使用
cURL:即使用URL语法传输数据的命令工具,是客户端向服务器请求资源工具。
作用:
1、网页资源(编写网页爬虫)
2、webservice(动态获取接口数据天气,号码归属地)
3、FTP资源上传和下载
必须先配置服务器支持curl,配置过程不再说。
简单网络爬虫,下载百度页面并替换
<?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“屌丝”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($curlobj); // 关闭cURL echo str_replace("百度","屌丝",$output); ?>
<?php /** * 实例描述:通过调用WebService查询北京的当前天气 */ $data = 'theCityName=北京'; $curlobj = curl_init(); curl_setopt($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($curlobj, CURLOPT_POST, 1); curl_setopt($curlobj, CURLOPT_POSTFIELDS, $data); curl_setopt($curlobj, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded; 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); ?>ftp文件下载:
<?php /** * 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); ?>ftp文件上传:
<?php /** * 实例描述:把本地文件上传到FTP服务器上 */ $curlobj = curl_init(); $localfile = 'ftp01.php'; $fp = fopen($localfile, 'r'); curl_setopt($curlobj, CURLOPT_URL, "ftp://192.168.1.100/ftp01_uploaded.php"); curl_setopt($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, $fp); curl_setopt($curlobj, CURLOPT_INFILESIZE, filesize($localfile)); $rtn = curl_exec($curlobj); fclose($fp); if(!curl_errno($curlobj)){ echo "Uploaded successfully."; } else { echo 'Curl error: ' . curl_error($curlobj); } curl_close($curlobj); ?>访问https资源:
<?php /** * 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 curl_setopt($curlobj, CURLOPT_SSL_VERIFYHOST, 2); // $output=curl_exec($curlobj); // 执行 curl_close($curlobj); // 关闭cURL echo $output; ?>
标签:des style blog http ar io color os 使用
原文地址:http://blog.csdn.net/buyingfei8888/article/details/41923671