PHP如何通过Post请求发送Json数据 如何向php服务器发送数据为json的post请求
php\u4e2d\u901a\u8fc7post\u8bf7\u6c42\u5e76\u63a5\u6536json\u6570\u636e$ch = curl_init ();
curl_setopt ( $ch, CURLOPT_URL, $uri );
curl_setopt ( $ch, CURLOPT_POST, 1 );//\u8bbe\u7f6e\u4e3apost
curl_setopt ( $ch, CURLOPT_HEADER, 0 );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );//data\u4e3apost\u8bf7\u6c42\u7684\u53c2\u6570
$return = curl_exec ( $ch );//$return\u4e3a\u63a5\u6536\u5230\u7684\u8fd4\u56de\u503c
curl_close ( $ch );
\u7528curl
$ch = curl_init();
$header[] = "Content-type: text/xml";//\u5b9a\u4e49content-type\u4e3axml
curl_setopt($ch, CURLOPT_URL, $url); //\u5b9a\u4e49\u8868\u5355\u63d0\u4ea4\u5730\u5740
curl_setopt($ch, CURLOPT_POST, 1); //\u5b9a\u4e49\u63d0\u4ea4\u7c7b\u578b 1\uff1aPOST \uff1b0\uff1aGET
curl_setopt($ch, CURLOPT_HEADER, 1); //\u5b9a\u4e49\u662f\u5426\u663e\u793a\u72b6\u6001\u5934 1\uff1a\u663e\u793a \uff1b 0\uff1a\u4e0d\u663e\u793a
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//\u5b9a\u4e49\u8bf7\u6c42\u7c7b\u578b
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);//\u5b9a\u4e49\u662f\u5426\u76f4\u63a5\u8f93\u51fa\u8fd4\u56de\u6d41
curl_setopt($ch, CURLOPT_POSTFIELDS, $postStr); //\u5b9a\u4e49\u63d0\u4ea4\u7684\u6570\u636e\uff0c\u8fd9\u91cc\u662fXML\u6587\u4ef6
$res = curl_exec($ch);
curl_close($ch);//\u5173\u95ed
首先要把数据转换成json格式，再通过curl方法调用接口并传参数
代码如下：
$keyword = urlencode($_POST['keyword']);
$parameters = json_encode(array('keyWord'=>$keyword,'areaCode'=>'*'));
$post_data['appToken'] = "323ds7674354fds32fdsda60173";//随便写的
$post_data['parameters'] = $parameters;
$url = 'http://serde.com/compadddvd/index';//随便写的
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);//用post方法传送参数
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);
之后就返回数据即可。
前端通过ajax发起post请求 后端查询到结果后使用json_decode()把数据转成json格式后 return返回 前端就可以通过回调函数拿到json数据
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