jquery - PHP write JSON file via AJAX -

i want post data via jquery/ajax json-file, don't receive data json object.

my json content looks this:

foo=abc&bar=def

but want one:

{ "foo" : "abc", "bar" : "def }

html

<form id="foobar">     <label for="bar">a bar</label>     <input id="foo" name="foo" type="text" value="" />     <input id="bar" name="bar" type="text" value="" />     <input type="submit" value="send" /> </form> 

js

        var request;          $("#foobar").submit(function(event){          if (request) {             request.abort();         }         var $form = $(this);         var serializeddata = $form.serialize();          request = $.post("datasaveajax.php", {json : json.stringify(serializeddata)});          event.preventdefault();     }); 

php

<?php $file = fopen("dataajax.json","w+");  $json = $_post['json'];  $jsondecode = json_decode($json);  fwrite($file, $jsondecode); fclose($file);  ?> 

if want use serialize use

var data= json.parse($("#foobar").serializearray()); //not serialize() 

if object/array gets passed .serializearray(), it's serialized via $.param().

if string passed .serialize() doesn't further.

your code should be

    var request;      $("#foobar").submit(function(event){      if (request) {         request.abort();     }     var data= {          "foo":$("#foo").val(),          "bar":$("#bar").val()      };     //don't if want in json formate     //var serializeddata = $form.serialize();      request = $.post("datasaveajax.php", {json : json.stringify(data)});      event.preventdefault(); }); 

or can use

var serializeddata = $form.serializearray();