php 实现收藏功能
//判断用户是否已收藏该图片 $data['uid'] = $_SESSION['uid'];$data['pid'] = $pid;
$collect_pic = M('collect')->where($data)->getfield('status');
$this->collect_num = $collect_num;
$this->collect_pic = $collect_pic;
//收藏成功
public function cang(){
$data['pid'] = isset($_POST['id'])?(($_POST['id'])):0;
$data['uid'] = $_SESSION['uid'];
//默认o收藏 1取消收藏
$status = isset($_POST['status'])?(($_POST['status'])):0;
$db = M('collect');
if($status == 0){
//数据组装，忽略
if(M('collect')->data($collect)->add()){
$msg['info'] = "ok";
$msg['status'] = 1;
$this->ajaxreturn($msg);
exit;
}else{
$msg['info'] = 'fail';
$msg['status'] = 1;
$this->ajaxreturn($msg);
}
}else{
//取消收藏
if($db->where($data)->delete()){
$msg['info'] = "ok";
$msg['status'] = 0;
$this->ajaxreturn($msg);
exit;
}else{
$msg['info'] = 'fail';
$msg['status'] = 0;
$this->ajaxreturn($msg);
}
}
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