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【PHP】PHP实现网络请求的方法及函数总结 一、分析php发送网网络请求的方法对于php发送网络请求，我们最常用的请求就是curl,有时我们也会用到file_get_contents函数发送网络请求，但file_get_contents只能完成一些间单的网络请求，稍复杂的就无法完成，例如文件上传，cookies，验证，表单提交等，用php的curl可以使用URL的语法模拟浏览器来传输数据，因为它是模拟浏览器，因此它同样支持多种协议，FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE 以及 LDAP等协议都可以很好的支持，包括一些：HTTPS认证，HTTP POST方法，HTTP PUT方法，FTP上传，keyberos认证，HTTP上传，代理服务器，cookies，用户名/密码认证，下载文件断点续传，上传文件断点续传，http代理服务器管道，甚至它还支持IPv6，scoket5代理服务器，通过http代理服务器上传文件到FTP服务器等等，所以我们在开发中尽量用curl发网络请求，无论是简单还是复杂二、file_get_contents发送网络请求示例file_get_contents(path,include_path,context,start,max_length)一般用file_get_contents或者fopen, file , readfile等函数读取url的时候 会创建一个$http_response_header变量保存HTTP响应的报头,使用fopen等函数打开的数据流信息可以用stream_get_meta_data获取$html = file_get_contents('http://www.baidu.com'); print_r($http_response_header); $fp = fopen('http://www.baidu.com', 'r'); print_r(stream_get_meta_data($fp)); fclose($fp);摸拟post请求：$url = 'http://192.168.1.1/test.php'; $data = array( 'keyword' => 'test data', ); $content = http_build_query($data); $content_length = strlen($content); $options = array( 'http' => array( 'method' => 'POST', 'header' => "Content-type: application/x-www-form-urlencoded\r\n" . "Content-length: $content_length\r\n", 'content' => $content ) ); echo file_get_contents($url, false, stream_context_create($options));三、php 用curl发送网络请求curl可以支持https认证、http post、ftp上传、代理、cookies、简单口令认证等等功能,使用前需要先在你的PHP环境中安装和启用curl模块，这里有两种写法供大家参考：<?php function geturl($url){ $headerArray =array("Content-type:application/json;","Accept:application/json"); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch,CURLOPT_HTTPHEADER,$headerArray); $output = curl_exec($ch); curl_close($ch); $output = json_decode($output,true); return $output; } function posturl($url,$data){ $data = json_encode($data); $headerArray =array("Content-type:application/json;charset='utf-8'","Accept:application/json"); $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST,FALSE); curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); curl_setopt($curl,CURLOPT_HTTPHEADER,$headerArray); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($curl); curl_close($curl); return json_decode($output，true); } function puturl($url,$data){ $data = json_encode($data); $ch = curl_init(); //初始化CURL句柄 curl_setopt($ch, CURLOPT_URL, $url); //设置请求的URL curl_setopt ($ch, CURLOPT_HTTPHEADER, array('Content-type:application/json')); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); //设为TRUE把curl_exec()结果转化为字串，而不是直接输出 curl_setopt($ch, CURLOPT_CUSTOMREQUEST,"PUT"); //设置请求方式 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);//设置提交的字符串 $output = curl_exec($ch); curl_close($ch); return json_decode($output,true); } function delurl($url,$data){ $data = json_encode($data); $ch = curl_init(); curl_setopt ($ch,CURLOPT_URL,$put_url); curl_setopt ($ch, CURLOPT_HTTPHEADER, array('Content-type:application/json')); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CUSTOMREQUEST, "DELETE"); curl_setopt($ch, CURLOPT_POSTFIELDS,$data); $output = curl_exec($ch); curl_close($ch); $output = json_decode($output,true); } function patchurl($url,$data){ $data = json_encode($data); $ch = curl_init(); curl_setopt ($ch,CURLOPT_URL,$url); curl_setopt ($ch, CURLOPT_HTTPHEADER, array('Content-type:application/json')); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CUSTOMREQUEST, "PATCH"); curl_setopt($ch, CURLOPT_POSTFIELDS,$data); //20170611修改接口，用/id的方式传递，直接写在url中了 $output = curl_exec($ch); curl_close($ch); $output = json_decode($output); return $output; } ?>一个函数片时各种请求：function sendCurl($url, $data = null,$method='POST') { $method=strtoupper($method); $start_wdmcurl_time = microtime(true); $header = array(' application/x-www-form-urlencoded'); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_FAILONERROR, false); // https 请求 if (strlen($url) > 5 && strtolower(substr($url, 0, 5)) == "https") { curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); } if($method=='GET'){ if($data && is_array($data) && count($data)>0 ){ $url.="?".http_build_query($data); } curl_setopt($ch, CURLOPT_URL, $url); }elseif($method=='POST'){ curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); if (is_array($data) && count($data)>0) { curl_setopt($ch, CURLOPT_POST, true); $isPostMultipart = false; foreach ($data as $k => $v) { if ('@' == substr($v, 0, 1)) { $isPostMultipart = true; break; } } unset($k, $v); if ($isPostMultipart) { curl_setopt($ch, CURLOPT_POSTFIELDS, $data); } else { curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data)); } } }elseif(in_array($method,['PUT','DELETE','PATCH'])){ curl_setopt($ch, CURLOPT_CUSTOMREQUEST,$method); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); } curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch,CURLOPT_HTTPHEADER,$header); $reponse = curl_exec($ch); curl_close($ch); return $reponse; }四、使用php composer的扩展guzzlehttpcomposer require guzzlehttp/guzzle $client = new \GuzzleHttp\Client(); $response = $client->request('GET', 'https://api.github.com/repos/guzzle/guzzle'); echo $response->getStatusCode(); // 200 echo $response->getHeaderLine('content-type'); // 'application/json; charset=utf8' echo $response->getBody(); // '{"id": 1420053, "name": "guzzle", ...}' // Send an asynchronous request. $request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org'); $promise = $client->sendAsync($request)->then(function ($response) { echo 'I completed! ' . $response->getBody(); }); $promise->wait();日常开发中我们尽量用方法三，自定义用curl处理网络请求，或用composer的guzzlehttp扩展库，有起来也很方便。学习地址：https://mp.weixin.qq.com/s/MOQyelYTv_UYYx9dqIOVRw -
【PHP】通过CURL获取结果集 在PHP调用别人的接口，需要用到curl相关操作，本文章集成了多个操作方法，并在今后的工作中不断完善 /** * @Author: 小破孩嫩 * @Email: 3584685883@qq.com * @Time: 2021/4/1 10:39 * @param string $url url地址 * @param bool $params 参数 * @param int $ispost 是否是post请求，默认get * @param int $https 是否是https，默认http * @param int $flbg 返回值是否转成数组，默认不转 * @param int $header 是否传递header值，默认不传，header值格式：$header = ['CLIENT-IP:127.0.0.1','X-FORWARDED-FOR:127.0.0.1']; * @param int $headercontent 是否获取请求的header值内容，默认不获取 * @param int $local 是否使用本地ip进行请求，默认不使用 * @return array|bool|mixed|string * @Description：curl请求 */ public function curl($url, $params = false, $ispost = 0, $https = 0, $flbg = 0, $header = 0,$headercontent = 0,$local = 0){ // $httpInfo = []; $ch = curl_init(); curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36'); // curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3861.400 QQBrowser/10.7.4313.400'); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30); curl_setopt($ch, CURLOPT_TIMEOUT, 30); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); if($header){ curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); } if($headercontent){ curl_setopt($ch, CURLOPT_HEADER, 1); } if($local){ $header = [ 'CLIENT-IP:127.0.0.1', 'X-FORWARDED-FOR:127.0.0.1' ]; curl_setopt($ch, CURLOPT_HTTPHEADER, $header); } if($https){ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // 对认证证书来源的检查 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // 从证书中检查SSL加密算法是否存在 } if($ispost){ curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $params); curl_setopt($ch, CURLOPT_URL, $url); }else{ if($params){ if (is_array($params)) { $params = http_build_query($params); } curl_setopt($ch, CURLOPT_URL, $url . '?' . $params); }else{ curl_setopt($ch, CURLOPT_URL, $url); } } $response = curl_exec($ch); // if($response === FALSE){ // echo "CURL Error: " . curl_error($ch); // return false; // } // $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); // $httpInfo = array_merge($httpInfo, curl_getinfo($ch)); if($headercontent){ //对返回的结果进行字符串处理 if (curl_getinfo($ch, CURLINFO_HTTP_CODE) == '200') { $headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $headers = substr($response, 0, $headerSize); $body = substr($response, $headerSize); return [$headers,$body]; //body内容是图片 } } curl_close($ch); if ($flbg) { $response = json_decode($response, true); } return $response; } 上面的用本地请求的场景是，被curl请求接口做了IP限制，如果本地不可以用，可以使用下面的方法需要一个有效的代理ip和端口号，有的还需要用户名密码，代码如下：curl_setopt($ch, CURLOPT_PROXY, "http://39.156.69.79:8080");窍门：一般情况下是不需要代理，但是伪造的ip不能用，就ping一下你扒取接口的网址，然后用这个网址的ip做伪造。百分百成功。如遇类似问题不能解决，欢迎留言讨论。
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