因項(xiàng)目的需要,PHP調(diào)用第三方 Java/.Net 寫好的 Restful Api,其中有些接口,需要 在發(fā)送 POST 請(qǐng)求時(shí),傳入對(duì)象。
Http中傳輸對(duì)象,最好的表現(xiàn)形式莫過(guò)于JSON字符串了,但是作為參數(shù)的接收方,又是需要被告知傳過(guò)來(lái)的是JSON!
其實(shí)這不難,只需要發(fā)送一個(gè) http Content-Type頭信息即可,即 “Content-Type: application/json; charset=utf-8”,參考代碼如下:
?php
/**
* PHP發(fā)送Json對(duì)象數(shù)據(jù)
*
* @param $url 請(qǐng)求url
* @param $jsonStr 發(fā)送的json字符串
* @return array
*/
function http_post_json($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 = "http://52php.cnblogs.com";
$jsonStr = json_encode(array('a' => 1, 'b' => 2, 'c' => 2));
list($returnCode, $returnContent) = http_post_json($url, $jsonStr);
API服務(wù)端端接收客戶端傳過(guò)來(lái)的 “Content-Type: application/json; charset=utf-8”頭信息后,再將 http body 數(shù)據(jù)(即 Json字符串)轉(zhuǎn)換成 類對(duì)象!