php post json参数的传递和接收处理方法

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; ?> 

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