javascript - Can't upload multiple image using Ajax with codeigniter -


wana upload multiple image of ajax in codeigniter got error while calling function upload_business_photo_do() please help

thanks in advance....

<input type="button" id="uploadbusinessimg" value="upload">

ajax code:- here call ajax via id="uploadbusinessimg"

<script>      $("#uploadbusinessimg").on("click",function(e)     {          var total_img=$("#txtbusinessimage").get(0).files.length;          if(total_img<=5)          {              var f_size=0;              var f_size_1=0;              var f_type_1="" ,validfilename="",invalidfilename="";              var chkfilevalid=true;              for(var i=0; i<=total_img-1; i++)              {                  var f_name=$("#txtbusinessimage").get(0).files.item(i).name;                  var f_size=$("#txtbusinessimage").get(0).files.item(i).size;                  var f_type=f_name.split('.').pop();                  //alert(f_type);                  var valid_extensions = /(\.jpg|\.jpeg|\.png)$/i;                  if(valid_extensions.test(f_name))                     {                          if(validfilename=="")                             validfilename =f_name;                         else                             validfilename+=","+f_name;                     }                  else                     {   invalidfilename=f_name;                         chkfilevalid=false;                         break;                     }                     var newfilesize=parseint(f_size);                 f_size_1=parseint(f_size_1)+parseint(newfilesize);               }              var totalfilesize=f_size_1;              //alert(totalfilesize);              if(totalfilesize<=1572864 && chkfilevalid==true)              {                  //alert("allow");                  alert(validfilename);                  var businessimage=validfilename;                  $.ajax({                         type:"post",                         url:"<?php echo site_url('main_ctrl/upload_business_photo_do'); ?>",                         mimetype:"multipart/form-data",                         uploadmultiple: true,                         data:{recivebusinessimg:businessimage},                         success: function(reviceuploadimgmsg)                         {                             alert(reviceuploadimgmsg);                         }                  });               }              else              {                    if(chkfilevalid==false)                     alert("invalidfilename"+invalidfilename);                 else                     alert("image size should less 1.5 mb");              }          }          else          {             alert("not allow");          }       });      </script>

this controller code:-

function upload_business_photo_do()     {         $recivebusinessimgname=$this->input->post('recivebusinessimg');         $newarray=explode(",",$recivebusinessimgname);         /*code image*/                 $config['upload_path']='./company_image/';                 $config['allowed_types']= 'jpg|png|jpeg';                 $config['max_width'] = '6000';                 $config['max_height'] = '4500';                  $this->load->library('upload',$config);                   for($i=0; $i<count($newarray); $i++)                 {                     $_files['userfile']['name']= $_files['txtbusinessimage']['name'][$i];                      $_files['userfile']['type']= $_files['txtbusinessimage']['type'][$i];                     $_files['userfile']['tmp_name']= $_files['txtbusinessimage']['tmp_name'][$i];                     $_files['userfile']['error']= $_files['txtbusinessimage']['error'][$i];                     $_files['userfile']['size']= $_files['txtbusinessimage']['size'][$i];                           if(! $this->upload->do_upload())                         {                             /*----set flash message*/                             echo "error";                           }                         else                         {                             $upload_data = $this->upload->data();                              echo "done";                         }                  }     }


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