Image resize codeigniter issue not working -

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i've been attempting resize images no luck! have resize inside upload function not sure happening wrong! code below shows upload function (and resize within it):

function do_upload()     {         $config['upload_path']   = './uploads/';                 $config['allowed_types'] = 'gif|jpg|png|jpeg';         $config['max_size'] = '2048';             $this->load->library('image_lib', $config);            $this->load->library('upload', $config);         $fullimagepath = '';               if (! $this->upload->do_upload())               {                             $this->upload->display_errors('<p style="color: maroon; font-size:large;">', '</p>');                     $error = array('file_error' => $this->upload->display_errors());                   // print_r($error);                     $this->load->view('layout/header');                    $this->load->view('add_gallery', $error);                    $this->load->view('layout/footer');                }else{                     //echo "upload success";                   // set $_post value 'image' can use later                         /*image manipulation class*/                      $config['image_library'] = 'gd2';                     $config['source_image'] = $fullimagepath;                     echo $fullimagepath;                     $config['create_thumb'] = false;                     $config['maintain_ratio'] = true;                     $config['max_width'] = '480';                     $config['max_height'] = '640';                     $this->load->library('image_lib', $config);                      $this->image_lib->resize();                     $upload_data    = $this->upload->data();                   $fullimagepath = '/uploads/' . $upload_data['file_name'];                }            return $fullimagepath;     }

the upload works fine , fullimagepath (link) store in database. anyway, not sure how handle resize.

the resize() function requires first have configured source_image before calling it, can apply resize specified image.

you sending empty path. here declare path empty string $fullimagepath = ''; , here define configuration options $config['source_image'] = $fullimagepath; , after call $this->image_lib->resize(); , can not resize empty image.

also loading twice image_lib not needed.

i modified code. test , see if works

function do_upload() {     $config['upload_path']   = './uploads/';             $config['allowed_types'] = 'gif|jpg|png|jpeg';     $config['max_size'] = '2048';     $this->load->library('upload', $config);     $fullimagepath = '';   if (! $this->upload->do_upload()){         $this->upload->display_errors('<p style="color: maroon; font-size:large;">', '</p>');         $error = array('file_error' => $this->upload->display_errors());         $this->load->view('layout/header');         $this->load->view('add_gallery', $error);         $this->load->view('layout/footer');   }else{         $upload_data = $this->upload->data();         $fullimagepath = '/uploads/' . $upload_data['file_name'];          $config['image_library'] = 'gd2';         $config['source_image'] = $fullimagepath;         $config['create_thumb'] = false;         $config['maintain_ratio'] = true;         $config['max_width'] = '480';         $config['max_height'] = '640';         $config['width'] = 75;         $config['height'] = 50;         $this->load->library('image_lib', $config);          $this->image_lib->resize();   }  return $fullimagepath; }

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