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如何在PHP中使用cURL库?很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
目前创新互联建站已为千余家的企业提供了网站建设、域名、雅安服务器托管、网站托管、企业网站设计、云龙网站维护等服务,公司将坚持客户导向、应用为本的策略,正道将秉承"和谐、参与、激情"的文化,与客户和合作伙伴齐心协力一起成长,共同发展。基本例子
一般流程:
$to_url=$_GET['url']; print_r($_GET); if(substr($to_url,0,1)=='/'){ $to_url="http://www.amazon.com".$to_url; } echo $to_url; //初始化 $ch = curl_init(); //设置选项,包括URL curl_setopt($ch, CURLOPT_URL, $to_url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); //执行并获取HTML文档内容 $output = curl_exec($ch); $output=preg_replace("#href=\"#","href=\"http://in2.qq-ex.com/amazon.php?url=",$output); // 释放curl句柄 curl_close($ch); echo $output; // 指定代理地址 curl_setopt($ch, CURLOPT_PROXY, '11.11.11.11:8080'); // 如果需要的话,提供用户名和密码 curl_setopt($ch, CURLOPT_PROXYUSERPWD,'user:pass');
1、测试网站是否运行正常
if (isDomainAvailible('http://gz.itownet.cn')) { echo "Up and running!"; } else { echo "Woops, nothing found there."; } //returns true, if domain is availible, false if not function isDomainAvailible($domain) { //check, if a valid url is provided if(!filter_var($domain, FILTER_VALIDATE_URL)) { return false; } //initialize curl $curlInit = curl_init($domain); curl_setopt($curlInit,CURLOPT_CONNECTTIMEOUT,10); curl_setopt($curlInit,CURLOPT_HEADER,true); curl_setopt($curlInit,CURLOPT_NOBODY,true); curl_setopt($curlInit,CURLOPT_RETURNTRANSFER,true); //get answer $response = curl_exec($curlInit); curl_close($curlInit); if ($response) return true; return false; }
2、可以代替file_gecontents的操作
function file_get_contents_curl($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser. curl_setopt($ch, CURLOPT_URL, $url); $data = curl_exec($ch); curl_close($ch); return $data; }
3、保存某个网站下的所有图片
function getImages($html) { $matches = array(); $regex = '~/tupian/20230522/404.html preg_match_all($regex, $html, $matches); foreach ($matches[1] as $img) { saveImg($img); } } function saveImg($name) { $url = '/tupian/20230522/404.html $data = get_data($url); file_put_contents('photos/'.$name.'.jpg', $data); } $i = 1; $l = 101; while ($i < $l) { $html = get_data('/tupian/20230522/& getImages($html); $i += 1; }
4、FTP应用
// open a file pointer $file = fopen("/path/to/file", "r"); // the url contains most of the info needed $url = "ftp://username:password@mydomain.com:21/path/to/new/file"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // upload related options curl_setopt($ch, CURLOPT_UPLOAD, 1); curl_setopt($ch, CURLOPT_INFILE, $fp); curl_setopt($ch, CURLOPT_INFILESIZE, filesize("/path/to/file")); // set for ASCII mode (e.g. text files) curl_setopt($ch, CURLOPT_FTPASCII, 1); $output = curl_exec($ch); curl_close($ch);
5、使用curl发送JSON数据
$data = array("name" => "Hagrid", "age" => "36"); $data_string = json_encode($data); $ch = curl_init('http://api.local/rest/users'); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'Content-Type: application/json', 'Content-Length: ' . strlen($data_string)) ); $result = curl_exec($ch);
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