实现头像上传及剪切功能（cakephp+jquery）

送给stone的文章：
此功能的优点就不多说了，具体实现如下：
1、必备：PHP4以上，gd库，jquery，及下载安装jquery.imgareaselect.min.js
2、创建组件jq_imgcrop.php，放在app/controllers/components
如果文件无法下载，用浏览器打开，查看源代码复制到相应文件中。
下载
3、创建helper助手cropimage.php，放在app/views/helpers/
下载
4、在控制器中添加引用
var $helpers = array(..., 'Cropimage') ;
var $components = array(..., 'JqImgcrop');
5、创建视图，使可以上传头像。
function icon()
{
if (!empty($this->data)) {
$uploaded = $this->JqImgcrop->uploadImage($this->data['User']['user_icon'], '/icon/', 'ef_',$this->Auth->user('user_id'));
$this->set('uploaded',$uploaded);
//echo $data['User']['user_icon'];exit;
if (!isset($data['User']['user_icon'])||$data['User']['user_icon']==''){
$suffix = substr(strrchr($this->data['User']['user_icon']['name'], "."), 1);
$user_icon = 'ef_'.$this->Auth->user('user_id').'.'.$suffix;
$this->User->query("UPDATE users SET user_icon = '".$user_icon."' where user_id= ".$this->Auth->user('user_id')."");
}}
$data= $this->User->findByUserId($this->Auth->user('user_id'), array("user_icon"));
$this->set('user_icon',isset($data['User']['user_icon'])?$data['User']['user_icon']:"user.jpg");
}
6、上传后跳转到的控制器：
function crop()
{
if (!empty($this->data)) {
$this->JqImgcrop->cropImage(48, $this->data['User']['x1'], $this->data['User']['y1'], $this->data['User']['x2'], $this->data['User']['y2'], $this->data['User']['w'], $this->data['User']['h'], $this->data['User']['imagePath'], $this->data['User']['imagePath']) ;
}
$this->redirect('/users/setting');
}
参考：

http://www.zhuyinghao.com/?p=220