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phpChatroom v0.42
  by Guann-yuan Huang
  rick@ms5.url.com.tw
  http://wshlab2.ee.nkit.edu.tw/~rick/
  http://wshlab2.ee.nkit.edu.tw/~rick/Project/Chat/
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--------------------------------------------
: chat_show.php
Ŀ: ʾѶϢ
--------------------------------------------
        timestamp

            
            
            
  946080000 --- user Rick login	-> WHERE cls_tptr = 946080000
            
            
            
            
  946080050 --- user Jeffery login	-> WHERE cls_tptr = 946080050
            
  946080070 --- user Eric login	-> WHERE cls_tptr = 946080070
            
            
            
            
            
            
  946080140 --- user Mary login	-> WHERE cls_tptr = 946080140
            
            
            
            
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˵: 
  ѶϢʾݵʱгʱ
  ǵ. ʹ߲Ųῴ
  ɵѶϢ.
  
ex:
  user Rick ҵ, 
  ʱǻС,  Mary ʱ
  , ֻܿʱǱѶϢ
  .
  
--------------------------------------------


--------------------------------------------
: /lib/sys_func.php

Ŀ: 
  ϵͳʽ. 𴢴ʹߵĸ˱,
  ɾϿĹѶϢ, ɾõʺ
  ж.
  
:
  ʽᱻ include ÿһʽǰ, 
  Ҳ˵ֻҪضκһҳ, 
  ʽͻᱻִһ. 
  
  , ÿضʱ(ض
  ͳѶϢʱ, ѶϢӴԶ reload ʱ, 
  ӴԶ reload ...ʱ), Ͽ
  ȶʹ߶Ŀǰʱ, ϵͳ
  ʱ, ͬù, Ҳ
  ᱻ߳ȥ.
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