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);
}