Use PHP to receive POST data and parse json data

<?php
 $json_string = $_POST["txt_json"];
 if(ini_get("magic_quotes_gpc")=="1")
 {
  $json_string=stripslashes($json_string);
 }
 $user = json_decode($json_string);
 echo var_dump($user);
?>

In this file, first get the value of the POST form field txt_json in the html file, put it into the variable $json_string, and then judge that if the current PHP setting is magic_quotes_gpc=On, that is, the incoming double quotes will be transferred meaning, the json_decode function cannot parse it, so we need to unescape it. Then, use the json_decode function to convert the JSON text into an object, save it in the $user variable, and finally use echo var_dump($user); to dump the object out.

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