Ajax formulário todos os dados enviam

 $('#submit').on('click', function() {
             $.ajax({
                 url: "controller/php/add_project.php",
                 type: "POST",
                 data:  new FormData(document.getElementById("add_project_form")),
                 contentType: false,
                 processData:false,
                 cache: false,
                 success: function(dataResult){
                        console.log(dataResult);
                        var dataResult = JSON.parse(dataResult);
                        
                 },
                 error:function(dataResult){
                     console.log(dataResult);
                     alert('error / Add Project Again');
                 }
             });
         });
faheem