我正在尝试从codeigniter中的表单验证扩展类验证图像,但它无法正常工作
控制器
public function __construct() {
parent::__construct();
$this->load->library('form_validation');
}
public function add_photo() {
$this->form_validation->set_rules('pic','Photo','validate_image['.$_FILES['pic'].']');
if($this->form_validation->run()) {
//some further coding
}
}
在我的图书馆
class MY_Form_validation extends CI_Form_validation {
public function __construct() {
parent::__construct();
$this->_CI = &get_instance();
}
public function validate_image($image = NULL) {
print_r($image);
$file_name = $image['name'];
$allowed_ext = array('jpg', 'jpeg', 'png', 'gif', 'bmp');
$ext = strtolower(end(explode('.', $file_name)));
$allowed_file_types = array('image/jpeg','image/jpg','image/gif','image/png');
$file_type = $image['type'];
if(!in_array($ext, $allowed_ext) && !in_array($file_type, $allowed_file_types)) {
$this->_CI->form_validation->set_message('validate_image', 'This file type is not allowed');
return false;
}
if($image['size'] > 2097152) {
$this->_CI->form_validation->set_message('validate_image', 'File size Exeeds');
return false;
} else {
return true;
}
}
}
感谢任何建议和帮助。
答案 0 :(得分:4)
它不会在form validation
尝试它,
function validate_image(){
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->upload->initialize($config);
if (!$this->upload->do_upload('userfile'))
{
$this->validation->set_message('userfile',$this->upload->display_errors());
return false;
} else {
return true;
}
}
参考this
答案 1 :(得分:3)
你可以这样做: 控制器:
public function add_photo() {
$this->form_validation->set_rules('product_image','Product Image','callback_validate_image');
if($this->form_validation->run()==FALSE){
$this->add($category_id);
}else{
//your logic here
}
}
回调验证方法:
public function validate_image() {
$config = array(
'allowed_types'=>'jpg|png',
'upload_path'=> realpath(APPPATH . '../assets/img'),
'max_size'=>1
);
$this->load->library('upload', $config);
if (!$this->upload->do_upload('product_image'))
{
$this->form_validation->set_message('validate_image',$this->upload->display_errors());
return false;
} else {
return true;
}
}
APPPATH
将为您提供codeigniter的应用程序文件夹的路径
realpath()
会在没有../