how to insert data inside an array from each loop in jQuery

From last 5 hours i am trying to solve out one single thing and think almost made it but stuck somewhere due to which not getting the result i want. I think here i need a bit expert level help to rectify where i am doing wrong.

var eduarray = [];
$('.education-groupbox').each(function(index, el) {
    eduarray[index] = [];   
    var s = $(this).attr('id');
    //console.log();
    $('#'+s+' .inputs').each(function(key, value) {

        //eduarray['index'].push("rohit");

    });

});

What i am trying to get is the result in format of object with multiple array from the each each loop so that i can send the data through formdata and process the php form.

 <div id="education-groupboxwrapper">
                    <div id="education-groupbox" class="education-groupbox">
                      <div class="inputs col-3">
                        <label for="email">Bölüm</label>
                        <input type="text" name="email" />
                      </div>
                      <div class="inputs col-3">
                        <label for="email">Okul Adı</label>
                        <input type="text" name="email" />
                      </div>
                      <div class="inputs col-3">
                        <label for="email">Bölüm</label>
                        <input type="text" name="email" />
                      </div>
                      <div class="inputs col-3">
                        <label for="email">Bölüm</label>
                        <input type="text" name="email" />
                      </div>
                    </div> 
                  </div>