php模拟post提交提交json数据

<?php
header("Content-type:application/json;charset=utf-8");
$url="http://192.168.10.234:8080/uc/login/loginid";
$param=array(
//注册字段
"name"=>"test001",
"pass"=>"xxxx",
);
$data = json_encode($param);
list($return_code, $return_content) = http_post_data($url, $data);//return_code是http状态码
print_r($return_content);exit;
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);
}