我在上传模块中成功上传的照片的大小调整时遇到问题。
我可以将照片上传到合适的文件夹，但我的大小调整不起作用，我还想在同一文件夹中同时创建一个缩略图副本。
public function upload()
{
$this->load->library('session');
$this->load->helper('url');
$session_id = $this->session->userdata('id');
$this->load->model('account_model');
$user = $this->account_model->user();
$data['user'] = $user;
echo $user['id'];
$user_folder = './uploads/' . $this->session->userdata('id');
if(!is_dir($user_folder)){
mkdir($user_folder, 0777);
}
$config['image_library'] = 'gd2';
$config['source_image'] = $user_folder;
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = 50;
$config['height'] = 50;
$this->load->library('image_lib', $config);
$this->image_lib->resize();
$config['upload_path'] = $user_folder;
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '165';
$config['max_width'] = '165';
$config['max_height'] = '165';
$config['overwrite'] = TRUE;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$data['main_content'] = '/account/upload';
$this->load->view('includes/templates/main_page_template', $data);
}
else
{
$data = array('upload_data' => $this->upload->data());
$data['main_content'] = '/account/success';
$this->load->view('includes/templates/main_page_template', $data);
}
}
试试这个：
public function upload()
{
$this->load->library('session');
$this->load->helper('url');
$session_id = $this->session->userdata('id');
$this->load->model('account_model');
$user = $this->account_model->user();
$data['user'] = $user;
echo $user['id'];
$user_folder = './uploads/' . $this->session->userdata('id');
if(!is_dir($user_folder)){
mkdir($user_folder, 0777);
}
$this->load->library('image_lib'); #load the image manipulation library without initiatlising it here.
$configThumb['image_library'] = 'gd2';
//$configThumb['source_image'] = $user_folder;
$configThumb['create_thumb'] = TRUE;
$configThumb['maintain_ratio'] = TRUE;
$configThumb['width'] = 50;
$configThumb['height'] = 50;
//$this->image_lib->resize();
$config['upload_path'] = $user_folder;
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '165';
$config['max_width'] = '165';
$config['max_height'] = '165';
$config['overwrite'] = TRUE;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$data['main_content'] = '/account/upload';
$this->load->view('includes/templates/main_page_template', $data);
}
else
{
$configThumb['source_image'] = $uploadedDetails['full_path'];
$this->image_lib->initialize($configThumb); #initialize the library here
$this->image_lib->resize(); #resize is done here
$data = array('upload_data' => $this->upload->data());
$data['main_content'] = '/account/success';
$this->load->view('includes/templates/main_page_template', $data);
}
}
完整路径是指上载到服务器的源映像。请参阅其他条件，您就会明白了。现在的变化是，我们正在加载库，并在上传图像后对其进行初始化，因此我们从$this->upload->data()获得完整路径。
编辑：我用两种不同尺寸裁剪图像的工作函数
function udpate_profile($userId = 0){
$data = array();
//echo "<pre>";print_r($_POST);echo "</pre>";
/* Upload Image */
if($_FILES['image']['name'] != ""){
//echo "<pre>";print_r($_FILES);echo "</pre>";
//echo "enter";die;
/* Check if previous file exists */
$chkRs = $this->db->select('image')->where('id', $this->session->userdata['logged_user']['id'])->get('admins');
//echo $this->db->last_query();die;
if($chkRs->num_rows() > 0){
$chkD = $chkRs->row_array();
if($chkD['image'] != ""){
### delete the previous image ###
$pathActual = './profile_images/';
$pathMedium = './profile_images/medium/';
$pathThumb = './profile_images/thumbs/';
if(file_exists($pathActual.$chkD['image'])){ #delete the actual image
unlink($pathActual.$chkD['image']);
}
if(file_exists($pathMedium.$chkD['image'])){ #delete the medium image
unlink($pathMedium.$chkD['image']);
}
if(file_exists($pathThumb.$chkD['image'])){ #delete the thumb image
unlink($pathThumb.$chkD['image']);
}
### delete the previous image ###
}
}
/* Check if previous file exists */
//print_r($_FILES['image']);die;
$this->load->library('image_lib');
$configUpload['upload_path'] = './profile_images/';
$configUpload['allowed_types'] = 'gif|jpg|png|bmp|jpeg';
$configUpload['max_size'] = '0';
$configUpload['max_width'] = '0';
$configUpload['max_height'] = '0';
$configUpload['encrypt_name'] = true;
$this->load->library('upload', $configUpload);
/* size 64*72 for comments */
$configThumb = array();
$configThumb['image_library'] = 'gd2';
$configThumb['create_thumb'] = TRUE;
$configThumb['new_image'] = './profile_images/thumbs/';
$configThumb['maintain_ratio'] = TRUE;
$configThumb['width'] = 64;
$configThumb['height'] = 72;
$configThumb['thumb_marker'] = "";
//$this->load->library('image_lib');
/* size 64*72 for comments */
/* size 167*167 for profile page */
$configThumbMedium = array();
$configThumbMedium['image_library'] = 'gd2';
$configThumbMedium['create_thumb'] = TRUE;
$configThumbMedium['new_image'] = './profile_images/medium/';
$configThumbMedium['maintain_ratio'] = TRUE;
$configThumbMedium['width'] = 167;
$configThumbMedium['height'] = 167;
$configThumbMedium['thumb_marker'] = "";
/* size 167*167 for profile page */
if(!$this->upload->do_upload('image')){
return 0;
}
$uploadedDetails = $this->upload->data();
if($uploadedDetails['is_image'] == 1){
$configThumb['source_image'] = $uploadedDetails['full_path'];
$configThumbMedium['source_image'] = $uploadedDetails['full_path'];
$raw_name = $uploadedDetails['raw_name'];
$file_ext = $uploadedDetails['file_ext'];
$imgname = $raw_name.$file_ext;
$this->image_lib->initialize($configThumb);
$this->image_lib->resize();
$this->image_lib->initialize($configThumbMedium);
$this->image_lib->resize();
}
}
//die();
/* Upload Image */
$data = $this->input->post(null);
//echo "<pre>";print_r($data);echo "</pre>";die;
if(isset($imgname) && $imgname != ""){
$data['image'] = $imgname;
}
$this->db->where('id',$this->session->userdata['logged_user']['id'])->update('admins', $data);
return 1;
}
您可能需要将服务器上映像的完整路径传递给source_image。因此，如果你试图使用/uploads，那么你可能需要将其设置为/var/www/html/uploadss或该文件夹的完整路径，因为图像处理是相对于服务器的，而不是相对于网站url