Question

我需要在表格和文件夹中上传图片。请帮助我，我将如何将图像保存在文件夹和数据库中。请描述一下方法。

由于和Manish

Answer 1

你可以在PHP中“像往常一样”。我几天前刚刚这样做过：

$path = "/img/avatars/";
$dir = getcwd().$path;
$avatarFile = "$dir$id.png";

if (isset($this->data['User']['avatar']) && $this->data['User']['avatar']['error'] == 0) {
                $avatar = $this->data['User']['avatar'];
                if (!is_uploaded_file($avatar['tmp_name'])) $this->Utils->panic($avatar);

                if (in_array($avatar['type'], array('image/jpeg','image/pjpeg','image/png'))) {

                    // load image
                    list($width,  $height) = getimagesize($avatar['tmp_name']);
                    $width = $height = min($width, $height);

                    if (in_array($avatar['type'], array('image/jpeg','image/pjpeg')))
                        $source = imagecreatefromjpeg($avatar['tmp_name']);
                    else
                        $source = imagecreatefrompng($avatar['tmp_name']);

                    // resize
                    $thumb = imagecreatetruecolor(128, 128);
                    imagecopyresized($thumb,  $source,  0,  0,  0,  0,  128,  128,  $width,  $height);

                    // save resized & unlink upload
                    imagepng($thumb, $avatarFile);

                    $success &= true;
                } else {
                    $this->User->invalidate('avatar', __("Only JPG or PNG accepted.",true));
                    $success &= false;
                }

                unlink($avatar['tmp_name']); // Delete upload in any case
            }

它甚至会为你调整128x128的大小，你可以跳过它，只需将上传的图像重命名为目标目录。谷歌也会帮助你，文件上传没有特定的蛋糕。

上传表单：

echo $form->create('User', array(
    'enctype' => 'multipart/form-data',
    'type' => 'post',
));
echo $form->input('avatar', array('type' => 'file', 'label' => __('Avatar:',true)));

如何在cakephp中保存图像

1 个答案: