Codeigniter - 多個調整大小圖像不工作

Question

我已經嘗試清除，取消設置調整大小的原始圖像到不同的尺寸的配置，但沒有效果，下是我當前的控制器代碼。當用戶選擇圖像時，會調用upload_news_images（）（上傳信號圖像，創建大拇指向用戶顯示:(使用AJAX）。當用戶點擊提交表單時，我需要使用不同尺寸的resize ，正在顯示任何錯誤

<?php 
defined('BASEPATH') OR exit('No direct script access allowed'); 

class DataHandler extends CI_Controller { 
    public function insert_news(){ 

    // uploaded images array 
     $uploaded_images = $this->input->post('uploads'); 

     // move images 
     foreach($uploaded_images as $img){ 
      $j = 0; 
      for($k=0; $k<3; $k++){ 
      if($k==0){ 
       $this->resize($img, 176, 176); 
      } 
      if($k==1){ 
       $this->resize($img, 360, 360); 
      } 
      if($k==2){ 
       $this->resize($img, 1024, 1024); 
      } 
      } 
     //rename("./uploads/tmp/orignals/".$img, "./uploads/images/news/orignals/".$img); 
     }  

    exit; 

     // WE INSERT NEWS DATA SECOND 
     $this->load->model("News_model"); 
     $news = new News_model(); 

     $news->title = $this->input->post('title'); 
     $news->short_desc = $this->input->post('short_desc'); 
     $news->desc = $this->input->post('description'); 
     $news->pub_date = date("Y/m/d H:i:s"); 
     $news->active = $this->input->post('active'); 

     $tr_id = $this->input->post('tr_id'); 
     if($tr_id == ""){ 
      $news->tr_id = NULL; 
     }else{ 
      $news->tr_id = $this->input->post('tr_id'); 
     } 


     $sp_id = $this->input->post('sp_id'); 
     if($sp_id == ""){ 
      $news->sp_id = NULL; 
     }else{ 
      $news->sp_id = $this->input->post('sp_id'); 
     } 


     $pl_id = $this->input->post('pl_id'); 
     if($pl_id == ""){ 
      $news->pl_id = NULL; 
     }else{ 
      $news->pl_id = $this->input->post('pl_id'); 
     } 

     $city_id = $this->input->post('city_id'); 
     if($city_id == ""){ 
      $news->city_id = NULL; 
     }else{ 
      $news->city_id = $this->input->post('city_id'); 
     } 
     $news->save(); 

     $this->session->set_flashdata('i', 1); 
     redirect(SITE_BASE_URL.'admin/addnews'); 
    } 

    public function upload_news_images() { 
    $id=$this->generateRandomString(); 

    $source_image = $_FILES['file']['tmp_name']; 
    $source_name = $_FILES['file']['name']; 


    $file_extension = pathinfo($source_name,PATHINFO_EXTENSION); 
    //echo AAPPATH;exit; 
    $tmp_upload_path = "./uploads/tmp/orignals/"; 
    $tmp_upload_thumb_path = "./uploads/tmp/thumbs/"; 

    $new_source = $tmp_upload_path.$id.".".$file_extension; 
    $new_thumb = $tmp_upload_thumb_path.$id.".".$file_extension; 


    if(file_exists($tmp_upload_path.$source_name)){ 
     unlink($tmp_upload_path.$source_name); //remove the file 
    } 

    move_uploaded_file($source_image , $new_source); 

    $upload_img_arr[] = $new_source; 
    $upload_img_data = array("upload_img_arr"=>$upload_img_arr); 
    //$this->session->set_userdata($upload_img_data); 

    $config['image_library'] = 'gd2'; 
    $config['source_image'] = $new_source; 
    $config['new_image'] = $new_thumb; 
    $config['file_permissions'] = 0644; 
    $config['create_thumb'] = FALSE; 
    $config['maintain_ratio'] = TRUE; 
    $config['width'] = 76; 
    $config['height'] = 76; 
    $this->load->library('image_lib', $config); 
    $this->image_lib->initialize(); 
    $this->image_lib->resize(); 
    $this->image_lib->clear(); 
    unset($config); 
    if (!$this->image_lib->resize()) { 
     echo $this->image_lib->display_errors(); 
    } 

    $response = array(); 
    $response['id'] = $id; 
    $response['thumb_url'] = $new_thumb; 
    echo json_encode($response); 
    } 

    function generateRandomString($length = 63) { 
    $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; 
    $charactersLength = strlen($characters); 
    $randomString = ''; 
    for ($i = 0; $i < $length; $i++) { 
     $randomString .= $characters[rand(0, $charactersLength - 1)]; 
    } 
    return $randomString; 
} 




    function resize($img, $width=0, $height=0){ 
    $config['image_library'] = 'gd2'; 
    $config['source_image'] = "./uploads/tmp/orignals/".$img; 
    if($width==176){ 
     $config['new_image'] = "./uploads/images/news/smalls/".$img; 
    }else if($width==360){ 
     $config['new_image'] = "./uploads/images/news/mediums/".$img; 
    }else if($width==1024){ 
     $config['new_image'] = "./uploads/images/news/large/".$img; 
    } 
    echo $config['new_image']."<br>"; 
    $config['file_permissions'] = 0644; 
    $config['create_thumb'] = FALSE; 
    $config['maintain_ratio'] = TRUE; 
    $config['width'] = $width; 
    $config['height'] = $height; 
    $this->load->library('image_lib', $config); 
    $this->image_lib->initialize(); 
    $this->image_lib->resize(); 
    $this->image_lib->clear(); 
    unset($config); 
    if (!$this->image_lib->resize()) { 
     echo $this->image_lib->display_errors(); 
    } 
    } 
} 

Answer 1

我看着辦吧。

$this->image_lib->initialize(); 

應該有新的配置每次使用像隨着時間：

$this->image_lib->initialize($config);