1<?php
 2 
 3/**
 4 * CURL请求
 5 * @param $url 请求url地址 ranjuan.cn
 6 * @param $method 请求方法 get post
 7 * @param null $postfields post数据数组
 8 * @param int $usejson 请求usejson信息-----如果usejson=1 则需要加json头
 9 * @param bool|false $debug  调试开启 默认false
10 * @return mixed
11 */
12// httpRequest($url,$model,$parms,1,true);
13function httpRequest($url, $method, $postfields = null, $usejson = 0, $debug = false) {
14    $method = strtoupper($method);
15    $ci = curl_init();
16    if($usejson == 1){//使用json提交方式需要加http头信息
17        $headers =array(
18            'Content-Type: application/json; charset=utf-8',
19            'Content-Length: ' . strlen(json_encode($postfields))
20        );
21    }else{
22        $headers =array();
23    }
24 
25    /* Curl settings */
26    curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
27    curl_setopt($ci, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:34.0) curl ranjuan/20200400 Firefox/34.0");
28    curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 60); /* 在发起连接前等待的时间，如果设置为0，则无限等待 */
29    curl_setopt($ci, CURLOPT_TIMEOUT, 7); /* 设置cURL允许执行的最长秒数 */
30    curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
31    switch ($method) {
32        case "POST":
33            curl_setopt($ci, CURLOPT_POST, true);
34            if (!empty($postfields)) {
35                $tmpdatastr = is_array($postfields) ? http_build_query($postfields) : $postfields;
36                if($usejson == 1){
37                    curl_setopt($ci, CURLOPT_POSTFIELDS, json_encode($postfields));
38                }else{
39                curl_setopt($ci, CURLOPT_POSTFIELDS, $tmpdatastr);
40                }
41            }
42            break;
43        default:
44isset(explode('?',$url)[1])?($url=$url.'&'.http_build_query($postfields)):($url=$url.'?'.http_build_query($postfields));
45		
46            curl_setopt($ci, CURLOPT_CUSTOMREQUEST, $method); /* //设置请求方式 */
47            break;
48    }
49    $ssl = preg_match('/^https:\/\//i',$url) ? TRUE : FALSE;
50    curl_setopt($ci, CURLOPT_URL, $url);
51    if($ssl){
52        curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hosts
53        curl_setopt($ci, CURLOPT_SSL_VERIFYHOST, FALSE); // 不从证书中检查SSL加密算法是否存在
54    }
55    //curl_setopt($ci, CURLOPT_HEADER, true); /*启用时会将头文件的信息作为数据流输出*/
56    curl_setopt($ci, CURLOPT_FOLLOWLOCATION, 1);
57    curl_setopt($ci, CURLOPT_MAXREDIRS, 2);/*指定最多的HTTP重定向的数量，这个选项是和CURLOPT_FOLLOWLOCATION一起使用的*/
58    curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
59    curl_setopt($ci, CURLINFO_HEADER_OUT, true);
60    /*curl_setopt($ci, CURLOPT_COOKIE, $Cookiestr); * *COOKIE带过去** */
61    $response = curl_exec($ci);
62    $requestinfo = curl_getinfo($ci);
63    $http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
64    if ($debug) {
65        echo "<br><br>=====".$method." data======".$url."\r\n<br>";
66        var_dump($postfields);
67        echo "<br><br>=====info===== \r\n<br>";
68        print_r($requestinfo);
69        echo "<br><br>=====response=====\r\n<br>";
70        print_r($response);
71    }
72    curl_close($ci);
73    return $response;
74    //return array($http_code, $response,$requestinfo);
75}
76 
77 
78}
79 
80?>

 1<?php
 2/**
 3 * Socket版本
 4 * 使用方法：
 5 * $post_string = "username=admin&password=123456";//需拼接为字符串
 6 * request_by_socket('ranjuan.cn', '/post_socket.php', $post_string);
 7 */
 8// 注意socket里面，提交目标地址的不是将完整url直接提交
 9// fsockopen()函数中写url顶级域名地址及端口号错误码超时配置等信息
10//在fwrite($socket, "POST $remote_path HTTP/1.0"); 语句中的$remote_path变量才是域名后的剩余地址/post_socket.php
11function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) {
12  $socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);
13//$socket =  fsockopen("ssl://".$remote_server, $port, $errno, $errstr, $timeout);//指定443端口使用ssl加密时的打开方式
14  if (!$socket) die("$errstr($errno)");
15  fwrite($socket, "POST $remote_path HTTP/1.0");
16  fwrite($socket, "User-Agent: Socket php get");
17  fwrite($socket, "HOST: $remote_server");
18  fwrite($socket, "Content-type: application/x-www-form-urlencoded");
19//fwrite($socket,"Content-Type: application/json; charset=utf-8");
20  fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");
21  fwrite($socket, "Accept:*/*");
22  fwrite($socket, "");
23  fwrite($socket, "mypost=$post_string");
24  fwrite($socket, "");
25  $header = "";
26  while ($str = trim(fgets($socket, 4096))) {
27    $header .= $str;
28  }
29  $data = "";
30  while (!feof($socket)) {
31    $data .= fgets($socket, 4096);
32  }
33  return $data;
34}
35 
36?>

 1/**
 2 * 发送post请求
 3 * @param string $url 请求地址
 4 * @param array $post_data post键值对数据
 5 * @return string
 6 */
 7 
 8function send_post($url, $post_data) {
 9  $postdata = http_build_query($post_data);
10  $options = array(
11    'http' => array(
12      'method' => 'POST',
13      'header' => 'Content-type:application/x-www-form-urlencoded',
14      'content' => $postdata,
15      'timeout' => 15 * 60 // 超时时间（单位:s）
16    )
17  );
18  $context = stream_context_create($options);
19  $result = file_get_contents($url, false, $context);
20  return $result;
21}
22//使用方法
23$post_data = array(
24  'username' => 'admin',
25  'password' => '123456'
26);
27send_post('http://xx.com/post.php', $post_data);