我正在上传并重新调整多个图像的大小，但这段代码适用于1个文件，如果我上传2个或更多文件，它会将第一张图片的大小重新调整为完全黑色，并且上传的所有其他图片不变。
function do_upload()
{
$files = $_FILES;
$cpt = count($_FILES['userfile']['name']);
for($i=0; $i<$cpt; $i++)
{
$_FILES['userfile']['name']= $files['userfile']['name'][$i];
$_FILES['userfile']['type']= $files['userfile']['type'][$i];
$_FILES['userfile']['tmp_name']= $files['userfile']['tmp_name'][$i];
$_FILES['userfile']['error']= $files['userfile']['error'][$i];
$_FILES['userfile']['size']= $files['userfile']['size'][$i];
$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());
$path=$data['upload_data']['full_path'];
$q['name']=$data['upload_data']['file_name'];
$configi['image_library'] = 'gd2';
$configi['source_image'] = $path;
$configi['maintain_ratio'] = TRUE;
$configi['width'] = 75;
$configi['height'] = 50;
$this->load->library('image_lib', $configi);
$this->image_lib->resize();
$this -> load -> view('upload_success', $q);
}
}
}
在我遗漏的地方，重新调整大小的功能不准确。
这条线下的
$path=$data['upload_data']['full_path'];
写入
echo $path;
然后检查输出是什么？
请尝试以下
function do_upload(){
$this->load->library('upload');
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
foreach($_FILES['userfile'] as $key => $value)
{
if( ! empty($key['name']))
{
$this->upload->initialize($config);
if ( ! $this->upload->do_upload($key))
{
$error['error'] = $this->upload->display_errors();
$this->load->view('pages/uploadform', $error);
}
else
{
$data[$key] = array('upload_data' => $this->upload->data());
$this->load->view('pages/uploadsuccess', $data[$key]);
}
}
}
}
}