Question

好的，所以我将所有的sql语句转换为预处理语句，我似乎无法弄清楚为什么这不会返回任何数据：

public function get_all_movies(){
  if($result = $this->link->prepare("SELECT id,type,name,description,cover,movie FROM movies")){
   $result->execute();
   $result->store_result();
   $result->bind_result($id,$type,$name,$description,$cover,$movie);
   if($result->num_rows !=0){
    $results = array();
    $result->fetch();
    $results['id'] = $id;
    $results['type'] = $type;
    $results['name'] = $name;
    $results['description'] = $description;
    $results['cover'] = $cover;
    $results['movie'] = $movie;
    return $results;
   }else {
       return array("error"=>"No-media-found");
   }
   $result->close();
  }
   }

转换自：

public function getAllMovies(){
        if($result = $this->link->query("SELECT * FROM movies")){
            if($result->num_rows != 0){
                $movies = array();
                while($movie = $result->fetch_assoc()){
                    array_push($movies,$movie);
                }
                return $movies;
            }else{
                return array("error"=>"No media found");
            }
        }
    }

有任何建议吗？

Answer 1

要选择所有字段，请使用*符号：

$this->link->prepare("SELECT * FROM movies"))

或使用表格的前缀：

$this->link->prepare("SELECT m.* FROM movies AS m"))

选择所有字段准备语句

1 个答案: