CodeIgniter Set Bild max-Größe auf 0 und Dateityp überprüfen, ob jpg oder png

Question

Wer kann mir helfen Bild max-Größe auf 0 zu setzen, weil ich bin immer Fehlercode: 1

Bitte helfen Sie mir konstruiere diesen Code. Ich will nicht ändern wollen, die Grenze in php.ini nur wissen, ob es einen Code Lösung für dieses Problem ist:

function uploadPhoto() 
{ 
    $control = 'filephoto'; 
    $path = './upload/'; 
    $image = $_FILES[$control]['name']; 
    $size = $_FILES[$control]['size']; 

    if ($imageName = $this->doUpload($control, $path, $image, 'all')) { 

    } else { 

    } 
} 

function doUpload($control, $path, $imageName, $sizes) 
{ 
    if ($this->session->userdata('logged_in')) { 
     $session_data = $this->session->userdata('logged_in'); 
     $u_id   = $session_data['u_id']; 
     $alnum  = random_string('alnum', 16); 
     if (! isset($_FILES[$control]) || ! is_uploaded_file($_FILES[$control]['tmp_name'])) { 
      $this->session->set_flashdata('error_nofile', 'No file was chosen Error code: ' . $_FILES[$control]['error']); 
      header('location:' . base_url() . "indexc/upload/"); 

      return false; 
     } 
     if ($_FILES[$control]['size'] > 2048000) { 
      $this->session->set_flashdata('error_largefile', 'File is too large (' . round(($_FILES[$control]["size"]/1000)) . 'kb), please choose a file under 2,048kb'); 
      header('location:' . base_url() . "indexc/upload/"); 

      return false; 
     } 
     if ($_FILES[$control]['error'] !== UPLOAD_ERR_OK) { 
      $this->session->set_flashdata('error_failed', 'Upload failed. Error code: ' . $_FILES[$control]['error']); 
      header('location:' . base_url() . "indexc/upload/"); 

      Return false; 
     } 
     switch (strtolower($_FILES[$control]['type'])) { 
      case 'image/jpeg': 
       $image = imagecreatefromjpeg($_FILES[$control]['tmp_name']); 
       move_uploaded_file($_FILES[$control]["tmp_name"], $path . $imageName); 
       break; 
      case 'image/png': 
       $image = imagecreatefrompng($_FILES[$control]['tmp_name']); 
       move_uploaded_file($_FILES[$control]["tmp_name"], $path . $imageName); 
       break; 
      case 'image/gif': 
       $image = imagecreatefromgif($_FILES[$control]['tmp_name']); 
       move_uploaded_file($_FILES[$control]["tmp_name"], $path . $imageName); 
       break; 
      default: 
       $this->session->set_flashdata('error_notallowed', 'This file type is not allowed'); 
       header('location:' . base_url() . "indexc/upload/"); 

       return false; 
     } 
     @unlink($_FILES[$control]['tmp_name']); 
     $old_width = imagesx($image); 
     $old_height = imagesy($image); 


     //Create tn version 
     if ($sizes == 'tn' || $sizes == 'all') { 
      $max_width = 600; 
      $max_height = 600; 
      $scale  = min($max_width/$old_width, $max_height/$old_height); 
      if ($old_width > 600 || $old_height > 600) { 
       $new_width = ceil($scale * $old_width); 
       $new_height = ceil($scale * $old_height); 
      } else { 
       $new_width = $old_width; 
       $new_height = $old_height; 
      } 
      $new = imagecreatetruecolor($new_width, $new_height); 
      imagecopyresampled($new, $image, 0, 0, 0, 0, $new_width, $new_height, $old_width, $old_height); 
      switch (strtolower($_FILES[$control]['type'])) { 
       case 'image/jpeg': 
        imagejpeg($new, $path . '' . $u_id . '_' . $alnum . '_' . $imageName, 90); 
        break; 
       case 'image/png': 
        imagealphablending($new, false); 
        imagecopyresampled($new, $image, 0, 0, 0, 0, $new_width, $new_height, $old_width, $old_height); 
        imagesavealpha($new, true); 
        imagepng($new, $path . '' . $u_id . '_' . $alnum . '_' . $imageName, 0); 
        break; 
       case 'image/gif': 
        imagegif($new, $path . '' . $u_id . '_' . $alnum . '_' . $imageName); 
        break; 
       default: 
      } 
     } 

     imagedestroy($image); 
     imagedestroy($new); 
     /* print '<div style="font-family:arial;"><b>'.$imageName.'</b> Uploaded successfully. Size: '.round($_FILES[$control]['size']/1000).'kb</div>'; */ 

     $this->session->set_flashdata('success_upload', '<div style="font-family:arial;"><b>' . $imageName . '</b> Uploaded successfully. Size: ' . round($_FILES[$control]['size']/1000) . 'kb</div>'); 

     $postdata['p_u_id']   = $u_id; 
     $postdata['p_content']  = $this->input->post('content'); 
     $postdata['p_image']   = $u_id . '_' . $alnum . '_' . $imageName; 
     $postdata['p_image_original'] = $imageName; 
     $postdata['p_posted']   = date("Y-m-d H:i:s"); 

     $res = $this->indexm->postinsert_to_db($postdata); 

     header('location:' . base_url() . "indexc/upload/"); 
    } else { 
     $this->load->view('index'); 
    } 
} 

Ich möchte auch überprüfen, ob der Dateityp jpg oder png

ist Bitte Hilf mir!

Dank,

joe

Answer 1

try Standard codeigniter Bibliothek:

function do_upload() 
    { 
     $config['upload_path'] = './uploads/'; 
     $config['allowed_types'] = 'gif|jpg|png'; 
     $config['max_size'] = '100'; 
     $config['max_width'] = '1024'; 
     $config['max_height'] = '768'; 

     $this->load->library('upload', $config); 

     if (! $this->upload->do_upload()) 
     { 
      $error = array('error' => $this->upload->display_errors()); 

      $this->load->view('upload_form', $error); 
     } 
     else 
     { 
      $data = array('upload_data' => $this->upload->data()); 

      $this->load->view('upload_success', $data); 
     } 
    }