php - upload file using ajax temporary save in table -

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in project insert data files , other info using ajax, saving of file want insert many files did have table store file content as

var file = $('#file')[0].files[0]; //var file = document.getelementbyid('file').files[0]; var name = file.name; var size = file.size; var type = file.type; var newname = $('#filename').val(); var newrow = "<tr>" +     "<td id=''>" + file.name + "</td>" +     "<td id=''>" + file.size + "</td>" +     "<td id=''>" + file.type + "</td>" +     "<td id=''>" + newname + "</td>" +     "<td>" + "<a href='#' id='" + id + "' class='deletefile'>delete</a>" + "</td>" +     "</tr>"; $("#filetable > tbody > tr:last").after(newrow);

this how save file content in table can insert many files in database allows me rename file using newname.

after push content of table in variable(i didnt include in push how got data table because long). put variable in formdata

$('#addtotable').click(function() {         var $rows = $('#filetable').find("tr:not(:eq(0))");         var valuetopush = [];         $rows.each(function() {             var $tds = $(this).find('td');             var nameoffile = $tds.eq(0).text();             var size = $tds.eq(1).text();             var type = $tds.eq(2).text();             var filename = $tds.eq(3).text();             valuetopush.push({                 nameoffile: nameoffile,                 size: size,                 filename: filename,                 type: type              });         }); var formdata = new formdata(); formdata.append('file', json.stringify(valuetopush));

note. included append data file

the ajax this

$.ajax({     url: '../include/add.php',     type: 'post',     datatype: "json",     data: formdata,     processdata: false, // tell jquery not process data     contenttype: false, // tell jquery not set contenttype     success: function(data) {         console.log(data);         //alert(data.message);         //window.location.reload(true);     },     error: function(data) {         console.log(data);         //alert("error!"); // optional         //window.location.reload(true);     } });

and in php have condition

if (!empty($_files)) {

my question why $_files empty when try echo variable ($_post['file']) return correct content of file current file name, file size , file type


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