因项目的需要,PHP调用第三方 Java/.Net 写好的Restful Api,其中有些接口,需要 在发送 POST 请求时,传入对象。
Http中传输对象,最好的表现形式莫过于JSON字符串了,但是作为参数的接收方,又是需要被告知传过来的是JSON!
其实这不难,只需要发送一个 httpContent-Type头信息即可,即 “Content-Type: application/json; charset=utf-8”,参考代码如下:
<?php/*** PHP发送Json对象数据** @param $url 请求url* @param $jsonStr 发送的json字符串* @return array*/function http_post_json($url, $jsonStr){$ch = curl_init();curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json; charset=utf-8','Content-Length: ' . strlen($jsonStr)));$response = curl_exec($ch);$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);curl_close($ch);return array($httpCode, $response);}$url = "";$jsonStr = json_encode(array('a' => 1, 'b' => 2, 'c' => 2));list($returnCode, $returnContent) = http_post_json($url, $jsonStr);
API服务端端接收客户端传过来的“Content-Type: application/json; charset=utf-8”头信息后,再将 http body 数据(即 Json字符串)转换成 类对象!