Drag and drop with multiple file upload using php

Drag and drop with multiple file upload using php, javascript, html

<?php
if(isset($_POST['Submit'])){ //upload
   $uploads_dir = 'img';
  foreach ($_FILES["multifileselect"]["error"] as $key => $error) {
      if ($error == UPLOAD_ERR_OK) {
          $tmp_name = $_FILES["multifileselect"]["tmp_name"][$key];
         $name = basename($_FILES["multifileselect"]["name"][$key]);
          if (copy($tmp_name, "$uploads_dir/$name")){
               echo "successfully uploaded =>". $name;
          }else{
             echo "Not Uploaded Files";
          }

      }
  }
}?>



<html>
<head></head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script type="text/javascript" >
var globalFunctions = {};
globalFunctions.ddInput = function(elem) {
  if ($(elem).length == 0 || typeof FileReader === "undefined") return;
  var $fileupload = $('input[type="file"]');
  var noitems = '<li class="no-items"><span class="blue-text underline">Browse</span> or drop here</li>';
  var hasitems = '<div class="browse hasitems">Other files to upload? <span class="blue-text underline">Browse</span> or drop here</div>';
  var file_list = '<ul class="file-list"></ul>';
  var rmv = '<div class="remove"><i class="icon-close icons">x</i></div>'

  $fileupload.each(function() {
    var self = this;
    var $dropfield = $('<div class="drop-field"><div class="drop-area"></div></div>');
    $(self).after($dropfield).appendTo($dropfield.find('.drop-area'));
    var $file_list = $(file_list).appendTo($dropfield);
    $dropfield.append(hasitems);
    $dropfield.append(rmv);
    $(noitems).appendTo($file_list);
    var isDropped = false;
    $(self).on("change", function(evt) {
      if ($(self).val() == "") {
        $file_list.find('li').remove();
        $file_list.append(noitems);
      } else {
        if (!isDropped) {
          $dropfield.removeClass('hover');
          $dropfield.addClass('loaded');
          var files = $(self).prop("files");
          traverseFiles(files);
        }
      }
    });

    $dropfield.on("dragleave", function(evt) {
      $dropfield.removeClass('hover');
      evt.stopPropagation();
    });

    $dropfield.on('click', function(evt) {
      $(self).val('');
      $file_list.find('li').remove();
      $file_list.append(noitems);
      $dropfield.removeClass('hover').removeClass('loaded');
    });

    $dropfield.on("dragenter", function(evt) {
      $dropfield.addClass('hover');
      evt.stopPropagation();
    });

    $dropfield.on("drop", function(evt) {
      isDropped = true;
      $dropfield.removeClass('hover');
      $dropfield.addClass('loaded');
      var files = evt.originalEvent.dataTransfer.files;
      traverseFiles(files);
      isDropped = false;
    });


    function appendFile(file) {
      console.log(file);
      $file_list.append('<li>' + file.name + '</li>');
    }

    function traverseFiles(files) {
      if ($dropfield.hasClass('loaded')) {
        $file_list.find('li').remove();
      }
      if (typeof files !== "undefined") {
        for (var i = 0, l = files.length; i < l; i++) {
          appendFile(files[i]);
        }
      } else {
        alert("No support for the File API in this web browser");
      }
    }

  });
};

$(document).ready(function() {
  globalFunctions.ddInput('input[type="file"]');
});

</script>
<style>
.blue-text {
  color: blue;
}

.underline {
  text-decoration: underline;
}

.drop-field {
  position: relative;
  text-align: center;
  vertical-align: middle;
}

.drop-field,
.drop-area {
  height: 150px;
  width: 300px;
}

.drop-field .browse {
  z-index: 0;
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  margin: 0 auto;
}

.drop-field .drop-area {
  display: block;
  border: 1px dashed gray;
  position: relative;
}

.drop-field,
.drop-area,
.drop-field .browse {
  transition: all 0.3s;
}

.drop-field.loaded .drop-area {
  border: 1px solid blue;
}

.drop-field .browse {
  opacity: 0;
  transform: translateY(100%);
}

.drop-field.loaded .browse {
  opacity: 1;
  transform: translateY(0);
}

.drop-field.hover .drop-area {
  border: 1px solid black;
}

.drop-field .drop-area input[type="file"] {
  height: 100%;
  width: 100%;
  position: absolute;
  display: block;
  z-index: 3;
  top: 0;
  left: 0;
  opacity: 0.000001;
}

.drop-field .file-list {
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  text-align: center;
}

.drop-field .remove {
  position: absolute;
  left: 20px;
  top: 20px;
  z-index: 4;
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(-100%);
  cursor: pointer;
}

.drop-field .remove:hover {
  color: blue;
}

.drop-field.loaded .remove {
  opacity: 1;
  transform: translateY(0);
}

.drop-field ul li {
  padding: 0;
  text-align: center;
  list-style: none;
}


}
</style>

<body>
  <form method="post" action="" name="frmact" enctype="multipart/form-data">
    Upload multi select File : <input type="file" id="multifileselect" name="multifileselect[]" multiple="multiple" style="margin-left:50px;" />
    <input type="submit" name="Submit" value="submit" style="margin-left:50px;" />
</form>
</body>
</html>

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