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

CURL实例
1.一个简单的curl，抓取百度首页
2.下载一个网页并把内容中的“百度”替换为“摆渡”之后输出
3.调用WebService
一个简单的curl，抓取百度首页

<?php$curl=curl_init（"http://www.jb51.net"）;curl_exec（$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URLcurl_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cURLecho 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：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（$curlobj, CURLOPT_TIMEOUT, 300）; // times out after 300scurl_setopt（$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 300scurl_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URLcurl_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cURLecho $output;?>