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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package sitemaker  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright (c) 2016 Daniel A. (blitze)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace blitze\sitemaker\services\forum;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class attachments  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/** @var \phpbb\auth\auth */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $auth;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/** @var \phpbb\db\driver\driver_interface */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $db;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Constructor  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param \phpbb\auth\auth						$auth		Auth object  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param \phpbb\db\driver\driver_interface		$db     	Database connection  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function __construct(\phpbb\auth\auth $auth, \phpbb\db\driver\driver_interface $db)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->auth = $auth;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->db = $db;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Get attachments...  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param int $forum_id  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param array $attach_ids  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param array $allowed_extensions  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param int|bool $limit  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param bool $exclude_in_message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $order_by  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return array  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	public function get_attachments($forum_id = 0, array $attach_ids, $allowed_extensions = array(), $limit = false, $exclude_in_message = true, $order_by = 'filetime DESC')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	{ | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$attachments = array();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if ($this->user_can_download_attachments($forum_id))  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		{ | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$sql = $this->get_attachment_sql($attach_ids, $allowed_extensions, $exclude_in_message, $order_by);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$result = $this->db->sql_query_limit($sql, $limit);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			while ($row = $this->db->sql_fetchrow($result))  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				$attachments[$row['post_msg_id']][] = $row;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$this->db->sql_freeresult($result);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$this->store['attachments'] = array();  | 
            
                            
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                		return $attachments;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param int $forum_id  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function user_can_download_attachments($forum_id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return ($this->auth->acl_get('u_download') && (!$forum_id || $this->auth->acl_get('f_download', $forum_id))) ? true : false; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param array $attach_ids  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param array $allowed_extensions  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param bool $exclude_in_message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $order_by  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function get_attachment_sql(array $attach_ids, array $allowed_extensions, $exclude_in_message, $order_by)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return 'SELECT *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			FROM ' . ATTACHMENTS_TABLE . '  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			WHERE ' . $this->db->sql_in_set('post_msg_id', $attach_ids) . | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				(($exclude_in_message) ? ' AND in_message = 0' : '') .  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				(sizeof($allowed_extensions) ? ' AND ' . $this->db->sql_in_set('extension', $allowed_extensions) : '') . ' | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			ORDER BY ' . $order_by;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: