Codeigniter 图像调整编码器点火器问题不起作用

Codeigniter 图像调整编码器点火器问题不起作用,codeigniter,codeigniter-2,Codeigniter,Codeigniter 2,我一直在尝试调整图像大小,但没有运气!我有在上传功能内调整大小,但不确定发生了什么错误!下面的代码显示了我的上传功能(并在其中调整大小): 函数do_upload() { $config['upload_path']='./uploads/'; $config['allowed_types']='gif | jpg | png | jpeg'; $config['max_size']='2048'; $this->load->library('image_lib',$config); $this

我一直在尝试调整图像大小,但没有运气!我有在上传功能内调整大小,但不确定发生了什么错误!下面的代码显示了我的上传功能(并在其中调整大小):

函数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);
$fullImagePath='';
如果(!$this->upload->do_upload())
{
$this->upload->display_错误('

”,'

'); $error=array('file_error'=>$this->upload->display_errors()); //打印错误($error); $this->load->view('layout/header'); $this->load->view('add_gallery',$error); $this->load->view('layout/footer'); }否则{ //回声“上传成功”; //为“image”设置一个$\u POST值,以便以后使用 /*图像处理类*/ $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']; } 返回$fullImagePath; }
上传工作正常,我得到了完整的ImagePath(链接)以存储在数据库中。无论如何,只是不知道如何处理调整大小

调用
resize()
函数之前,需要先配置
source\u图像
,以便将resize应用于指定的图像

您正在发送一条空路径。 在这里,您将路径声明为空字符串
$fullImagePath=''
然后在这里将其定义为配置选项
$config['source\u image']=$fullImagePath$this->image_lib->resize(),因此无法调整为空图像的大小

此外,您正在加载两次不需要的
图像库

我修改了你的代码。测试一下,看看是否有效

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;
}
函数do_upload()
{
$config['upload_path']='./uploads/';
$config['allowed_types']='gif | jpg | png | jpeg';
$config['max_size']='2048';
$this->load->library('upload',$config);
$fullImagePath='';
如果(!$this->upload->do_upload()){
$this->upload->display_错误('

”,'

'); $error=array('file_error'=>$this->upload->display_errors()); $this->load->view('layout/header'); $this->load->view('add_gallery',$error); $this->load->view('layout/footer'); }否则{ $upload_data=$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); $this->image_lib->resize(); } 返回$fullImagePath; }
您的代码看起来是正确的。。使sute
$fullImagePath
正确并指向您的imahe文件..不,这还不起任何作用。与上载的大小完全相同。请确保
$fullImagePath
指向正确的路径。它与我使用的src到图像的路径相同。因此,是的,它是正确的,不是空的。我又添加了两个配置选项
$config['width']=75
$config['height']=50。现在检查一下。
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;
}