php - How to retrieve data from serialized jQuery string -

how retrieve data when post using ajax function that

jquery("#wp_pass_reset").submit(function() {  var url = document.getelementbyid('imgurl').innerhtml; var url2 = document.getelementbyid('adminurl').innerhtml;             jquery('#result').html('<span class="loading"><img src="' + url + '/img/load.gif" /></span>').fadein();     var input_data = jquery('#wp_pass_reset').serialize();     jquery.ajax({         type: "post",         url: url2 + 'admin-ajax.php',         data: {             action: 'resetpass_process',             value: input_data,         },         success: function(msg){             jquery('.loading').remove();               jquery('<div>').html(msg).appendto('div#result').hide().fadein('slow'); } }); return false;  }); 

this form:

<form class="user_form" id="wp_pass_reset" action="" method="post" name="wp_pass_reset">     <h1>         enter email or username     </h1>     <input type="text" class="text" name="user_input" value=""><br>     <input type="hidden" name="action" value="tg_pwd_reset">      <a class="close">x</a>      <input type="hidden" name="tg_pwd_nonce" value="'.wp_create_nonce(">      <input type="submit" id="submitbtn" class="reset_password btn" name="submit" value="reset password"> </form> 

when retrieve data using $_post['value'] of data show when use $_post['user_input'] error happens.

what can do?

here, submitting form ajax have pass in data like,

 data: {        action: 'resetpass_process',        value: input_data,        user_input : $('input[name="user_input"]').val(),        // add more parmeters need    },