php post json参数的传递和接收处理

页面1 ，php传递json参数的页面：1.php

<?
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();  
		//echo $return_content."<br>";
        ob_end_clean();  
  
        $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);  
      //  return array($return_code, $return_content);  
	  return  $return_content;
    }  
  
$url  = "http://127.0.0.1/2.php";  
$data = json_encode(array("a"=>"weqweqwe", "b"=>2));   
  
//list($return_code, $return_content) = http_post_data($url, $data);
$aaa = http_post_data($url, $data);  
//print_r($aaa);
echo $aaa;

$ccc=json_decode($aaa);
print_r($ccc);
echo $ccc->b;

echo "<hr>";
$json = "{"a":1,"b":2,"c":3,"d":4,"e":5}";
var_dump(json_decode($json,true));
　
?>

页面2，参数接收处理：

2.php

<?
$postData = file_get_contents("php://input");
echo $postData;
$data = json_encode(array("a"=>" 234 ", "b"=>2));  
echo $data;
?>