Codeigniter Bild hochladen Problem

Question

Ich benutze coderigniter Upload-Bibliothek, um mehrere Bilder hochzuladen. Meistens funktioniert es gut, aber in einigen Fällen wird das Bild nicht hochgeladen.

Funktion:

function do_upload_img() 
    { 
     if(isset($_FILES['portfolioimg']['size']) != 0){ 
      $name_array = array(); 
      $files = $_FILES; 
      $cpt = count($_FILES['portfolioimg']['name']); 

      // $config['source_image'] = ''; //get original image 
      $config['wm_type'] = 'overlay'; 
      $config['wm_overlay_path'] = './assets/img/watermark.png'; 
      $config['quality'] = 50; 
      $config['wm_vrt_alignment'] = 'middle'; 
      $config['wm_hor_alignment'] = 'center'; 
      $this->load->library('image_lib', $config); 

      for($i=0; $i<=$cpt-1; $i++) 
      { 
       $_FILES['userfile']['name']= $files['portfolioimg']['name'][$i]; 
       $_FILES['userfile']['type']= $files['portfolioimg']['type'][$i]; 
       $_FILES['userfile']['tmp_name']= $files['portfolioimg']['tmp_name'][$i]; 
       $_FILES['userfile']['error']= $files['portfolioimg']['error'][$i]; 
       $_FILES['userfile']['size']= $files['portfolioimg']['size'][$i];  

       $imgnam = rand(10,1000000).time(); 
       $ext = pathinfo($files['portfolioimg']['name'][$i], PATHINFO_EXTENSION); 
       if($this->upload->initialize($this->set_upload_options($imgnam))){ 
         $data = $this->upload->do_upload(); 
         $config['source_image'] = './assets/portfolio_img/' . 'Rookie_'.$imgnam.'.'.$ext; 
         $this->image_lib->initialize($config); 
         $this->image_lib->watermark(); 
         $name_array[] = $this->upload->data('file_name'); 
         $this->create_thumbnail('./assets/portfolio_img/',$imgnam,$ext); 
       }else{ 
        $this->session->set_flashdata('falsemsg','Only jpg, jpeg, png files are allowed to be uploaded.'); 
       } 
      } 
      return $name_array; 
     }else{ 
      return false; 
     } 
    } 
    private function set_upload_options($imgnam) 
    { 
      //upload an image options 
     $config = array(); 
     $config['upload_path'] = './assets/portfolio_img/'; 
     $config['allowed_types'] = 'jpeg|jpg|png|JPEG|JPG|PNG'; 
     $config['max_size']  = '0'; 
     $config['overwrite']  = true; 
     $config['file_name']  = 'Rookie_'.$imgnam; 

     return $config; 
    } 

Dies ist die Funktion, die im die Bilder zu laden verwenden. Ich habe keine Ahnung, warum es manchmal nicht funktioniert. Also bitte hilf mir den Fehler in meinem Code herauszufinden. Danke im Voraus.

Answer 1

$b='portfolioimg'; 
    $fileName = $_FILES[$b]['name']; 
       $images = $fileName; 
       $cpt = count($files); 
       for($i=1; $i<=$cpt; $i++) 
       { 
        $_FILES[$b]['name']= $files[$b]['name'][$i]; 
        $_FILES[$b]['type']= $files[$b]['type'][$i]; 
        $_FILES[$b]['tmp_name']= $files[$b]['tmp_name'][$i]; 
        $_FILES[$b]['error']= $files[$b]['error'][$i]; 
        $_FILES[$b]['size']= $files[$b]['size'][$i]; 
        $uploadPath = './assets/portfolio_img/'; 
        $config['upload_path'] = $uploadPath; 
        $config['allowed_types'] = 'gif|jpg|png|ico'; 
        $this->load->library('upload', $config); 
        $this->upload->initialize($config); 

      if($this->upload->do_upload($b.$i)){ 
      $fileData = $this->upload->data(); 
      $uploadData[$i]['file_name'] = $fileData['file_name']; 
      $im[$i]=$uploadData[$i]['file_name']; 
      } 
      } 
     $tblValues = array(

     'image'=>$images, // change field name, 


    ); 
    $this->db->insert('table_name', $tblValues); 

Answer 2

Controller:

if(isset($_POST['submit'])) 
     { 
      $config['upload_path']="./uploads/"; 
      $config['allowed_types']='jpg|jpeg|gif|png'; 
      $this->load->library('upload',$config); 
      if($this->upload->do_upload()) 
      { 
       echo "file upload success"; 
      } 
      else 
      { 
       echo "file upload failed"; 
      } 
     } 

Ausblick:

<form action="<?php echo base_url();?>controller/function" method="POST" enctype="multipart/form-data" > 
    Select File To Upload:<br /> 
    <input type="file" name="userfile" /> 
    <br /><br /> 
    <input type="submit" name="submit" value="Upload" class="btn btn-success" /> 
</form>