public function upload()
{
$token = I('post.token');
$timestamp = I('post.timestamp');
$verifyToken = md5('unique_salt' . $timestamp);
if (!empty($_FILES) && $token == $verifyToken) {
//上传参数配置
$config = array('maxSize' => 3145728, 'rootPath' => './Uploads/', 'savePath' => '', 'saveName' => array('uniqid', ''), 'exts' => array('jpg', 'gif', '', 'jpeg'), 'autoSub' => true, 'subName' => array('date', 'Ymd'));
$upload = new Upload($config);
// 实例化上传类
// 上传文件
$info = $upload->upload();
if (!$info) {
// 上传错误提示错误信息
$data = array('status' => 0, 'info' => $upload->getError());
} else {
// 上传成功
//添加水印和缩略图
$img_url = $config['rootPath'] . $info['Filedata']['savepath'] . $info['Filedata']['savename'];
//图片地址
$img = new Image(1, $img_url);
$mark = "./Public/images/uploadify/hbh.png";
//水印图片地址
$img->water($mark);
//添加水印默认是右下角
$img->save($img_url);
//保存水印后的图片
$img->thumb(250, 150);
//缩略图宽250px 高150px 等比例缩放
$thumb_url = $config['rootPath'] . $info['Filedata']['savepath'] . 'tb_' . $info['Filedata']['savename'];
//缩略图地址
$img->save($thumb_url);
//保存缩略图
$data = array('savename' => $info['Filedata']['savename'], 'savepath' => $config['rootPath'] . $info['Filedata']['savepath'], 'status' => 1);
}
$this->ajaxReturn($data);
}
}
public function img()
{
//实例化图像处理类，默认为GD库
$image = new Image();
//加载一张预处理的图片
$image->open('./Public/images/1.jpg');
//上面两句，可以用一句话包含
//$image = new Image(Image::IMAGE_GD, './Public/images/1.jpg');
//获取图片信息
$arr['width'] = $image->width();
$arr['height'] = $image->height();
$arr['type'] = $image->type();
$arr['mime'] = $image->mime();
$arr['size'] = $image->size();
//裁剪图片，高400，宽400
$image->crop(400, 400)->save('./Public/images/1.jpg');
$image->open('./Public/images/2.jpg');
$image->thumb(300, 300, Image::IMAGE_THUMB_CENTER)->save('./Public/images/2.jpg');
//在图片右下角添加水印并生成
$image->open('./Public/images/3.jpg');
$image->water('./Public/images/logo.png')->save('./Public/images/3.jpg');
echo '<pre>' . print_r($arr, 1) . '</pre>';
}
public function water()
{
$path = './Public/images/demo.jpg';
$water = './Public/images/logo.png';
$image = new Image(Image::IMAGE_GD, $path);
$image->water($water)->save('./Public/images/demo-water.jpg');
}
