PHP扩展SQL查询不起作用

Question

我使用jQuery的Blueimp文件上传脚本，并拥有这部分代码这是工作：

protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, 
     $index = null, $content_range = null) { 
    $file = parent::handle_file_upload(
     $uploaded_file, $name, $size, $type, $error, $index, $content_range 
    ); 
    if (empty($file->error)) { 
     $sql = 'INSERT INTO `'.$this->options['db_table'] 
      .'` (`name`, `size`, `type`, `title`, `description`)' 
      .' VALUES (?, ?, ?, ?, ?)'; 
     $query = $this->db->prepare($sql); 
     $query->bind_param(
      'sisss', 
      $file->name, 
      $file->size, 
      $file->type, 
      $file->title, 
      $file->description 
     ); 
     $query->execute(); 
     $file->id = $this->db->insert_id; 
    } 
    return $file; 
}  

现在我想只插入一个值，该值MEMBERID。我用这个列“usr_id”成功扩展了sql表，并修改了这样的代码：

 protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, 
     $index = null, $content_range = null) { 
    $file = parent::handle_file_upload(
     $uploaded_file, $name, $size, $type, $error, $index, $content_range 
    ); 
    if (empty($file->error)) { 
     $sql = 'INSERT INTO `'.$this->options['db_table'] 
      .'` (`name`, `size`, `type`, `title`, `description`, `usr_id`)' 
      .' VALUES (?, ?, ?, ?, ?, '; 
     $sql = $sql. $_SESSION['Memberid'] .")"; 
     $query = $this->db->prepare($sql); 
     $query->bind_param(
      'sisss', 
      $file->name, 
      $file->size, 
      $file->type, 
      $file->title, 
      $file->description 
     ); 
     $query->execute(); 
     $file->id = $this->db->insert_id; 
    } 
    return $file; 
} 

但它不起作用。我从来没有见过这种插入sql查询的方式。 我希望有人能帮忙。

TIA :)

//编辑

我也试过这个现在，并没有工作过。我做错了什么？

 protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, 
     $index = null, $content_range = null) { 
    $file = parent::handle_file_upload(
     $uploaded_file, $name, $size, $type, $error, $index, $content_range 
    ); 
    if (empty($file->error)) { 
     $sql = 'INSERT INTO `'.$this->options['db_table'] 
      .'` (`name`, `size`, `type`, `title`, `description`, `usr_id`)' 
      .' VALUES (?, ?, ?, ?, ?, ?)'; 
     $query = $this->db->prepare($sql); 
     $query->bind_param(
      'sisssi', 
      $file->name, 
      $file->size, 
      $file->type, 
      $file->title, 
      $file->description, 
      "2" 
     ); 
     $query->execute(); 
     $file->id = $this->db->insert_id; 
    } 
    return $file; 
} 

Answer 1

根据'bind_param'手册，它必须通过变量。唉，你传递了一个常量而不是一个变量。我没有尝试过下面的代码，但它应该做一些明智的事情。

 protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, 
     $index = null, $content_range = null) { 
    $file = parent::handle_file_upload(
     $uploaded_file, $name, $size, $type, $error, $index, $content_range 
    ); 

    if (empty($file->error)) { 
     $sql = 'INSERT INTO `'.$this->options['db_table'] 
      .'` (`name`, `size`, `type`, `title`, `description`, `usr_id`)' 
      .' VALUES (?, ?, ?, ?, ?, ?)'; 
     $query = $this->db->prepare($sql); 
     $usrId = 2; // temporary variable to store the usr_id 
     $query->bind_param(
      'sisssi', 
      $file->name, 
      $file->size, 
      $file->type, 
      $file->title, 
      $file->description, 
      $usrId 
     ); 
     $query->execute(); 
     $file->id = $this->db->insert_id; 
    } 
    return $file; 
}