php - Trying to upload multiple files in codeignitor. Getting do_upload expects a sting array given error -


i trying upload multiple files in codeigniter. getting below warning , error

a php error encountered  severity: warning  message: is_uploaded_file() expects parameter 1 string, array given  filename: libraries/upload.php error: did not select file upload.

here file upload form control:

<input type="file" accept="image/png, image/jpeg, image/gif, application/pdf, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, text/plain, application/pdf" name="file[]" multiple/>

my controller function here $file name of file being uploaded pass file_upload() other function.

public function file_upload($file){     $new_file = "";     $original_file_name = '';     if($file!=""){         $file_name = $file;         $original_file_name = $file_name;         $random = rand(1, 10000000000000000);         $makerandom = hash('sha512', $random.$this->input->post('title') . config_item("encryption_key"));         $file_name_rename = $makerandom;         $explode = explode('.', $file_name);         if(count($explode) >= 2) {             $new_file = $file_name_rename.'.'.$explode[1];             $config['upload_path'] = "./uploads/images";             $config['allowed_types'] = "gif|jpg|png|jpeg|pdf|doc|xml|docx|gif|jpg|png|jpeg|pdf|doc|xml|docx|xls|xlsx|txt|ppt|csv";             $config['file_name'] = $new_file;             $config['max_size'] = '3072';             $config['max_width'] = '3000';             $config['max_height'] = '3000';              $this->load->library('upload',$config);               $this->upload->initialize($config);             if(!$this->upload->do_upload("file")) {                 print_r($this->upload->display_errors());             } else {                  echo "success";               }         } else {             //error         }     }else{         //some code here     }   }

imho code doesn't make sense - main problem here - you've change _files array

something should work

public function file_upload() {     $strinputfilename = "file";     $arrfiles = $_files;      $config['upload_path'] = "./uploads/images";     $config['allowed_types'] = "gif|jpg|png|jpeg|pdf|doc|xml|docx|gif|jpg|png|jpeg|pdf|doc|xml|docx|xls|xlsx|txt|ppt|csv";     $config['file_name'] = $new_file;     $config['max_size'] = '3072';     $config['max_width'] = '3000';     $config['max_height'] = '3000';     $config['file_name'] = $this->getrandomfilename();      if (is_array($_files[$strinputfilename]['name']))     {         $countfiles = count($_files[$strinputfilename]['name']);         for($i=0;$i<$countfiles; $i++)         {             //overwrite _files array             $_files[$strinputfilename]['name'] = $arrfiles[$strinputfilename]['name'][$i];             $_files[$strinputfilename]['type'] = $arrfiles[$strinputfilename]['type'][$i];             $_files[$strinputfilename]['tmp_name'] = $arrfiles$strinputfilename]['tmp_name'][$i];             $_files[$strinputfilename]['error'] = $arrfiles[$strinputfilename]['error'][$i];             $_files[$strinputfilename]['size'] = $arrfiles[$strinputfilename]['size'][$i];             $this->upload->initialize($config);             if(!$this->upload->do_upload($strinputfilename))              {                 print_r($this->upload->display_errors());             }              else              {                 echo "success";             }         }     }     else     {         $this->upload->initialize($config);         if(!$this->upload->do_upload($strinputfilename))          {             print_r($this->upload->display_errors());         }          else          {             echo "success";         }     } }  private function getrandomfilename() {     $random = rand(1, 10000000000000000);     return hash('sha512', $random.$this->input->post('title') . config_item("encryption_key")); }

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