php 通过curl post发送json数据实例

例1

代码如下

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$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);

例2

代码如下

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function http_post_data($url, $data_string) {         $ch = curl_init();         curl_setopt($ch, CURLOPT_POST, 1);         curl_setopt($ch, CURLOPT_URL, $url);         curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);         curl_setopt($ch, CURLOPT_HTTPHEADER, array(             'Content-Type: application/json; charset=utf-8',             'Content-Length: ' . strlen($data_string))         );         ob_start();         curl_exec($ch);         $return_content = ob_get_contents();         ob_end_clean();         $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);         return array($return_code, $return_content);     } $url  = "http://xx.xx.cn"; $data = json_encode(array('a'=>1, 'b'=>2)); list($return_code, $return_content) = http_post_data($url, $data);

例3

代码如下

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$data=' {      "button":[      {               "type":"click",           "name":"今日歌曲",           "key":"V1001_TODAY_MUSIC"       },       {            "type":"click",            "name":"歌手简介",            "key":"V1001_TODAY_SINGER"       },       {            "name":"菜单",            "sub_button":[             {                "type":"click",                "name":"hello word",                "key":"V1001_HELLO_WORLD"             },             {                "type":"click",                "name":"赞一下我们",                "key":"V1001_GOOD"             }]        }]  }'; $ch = curl_init($urlcon); //请求的URL地址 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POSTFIELDS, $data);//$data JSON类型字符串 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: ' . strlen($data))); $data = curl_exec($ch); print_r($data);//创建成功返回：{"errcode":0,"errmsg":"ok"}

小结，我们发现最核心的一句代码就是Content-Type: application/json;这个是文件格式类型了。