How does this variable come from?

How does this variable come from this post? at last, lyhjc_2015 edited the if (isset ($ _ GET [n_page]) {& nbsp; & nbsp; & How does this variable come from?

This post was last edited by lyhjc_2015 at 09:02:41

In the following code, if (isset ($ _ GET ['n' _ page]) {// you can determine the current page number.
Of N_pageWhere did it come from? I checked out how it was not a field in a data table. Is it a casual definition?

 Session_start ();
Include_once ("conn/conn. php ");
?>




 

 
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 $ Sqlview = "select * from tb_meeting_info ";
$ Num = 2; // maximum number of records per page
If (isset ($ _ GET ['n' _ page']) {// judge the current page number
$ C_page = $ _ GET ['n' _ page ']; // assign $ n_page to the variable $ c_apge.
} Else {
$ C_page = 1; // Initialization variable $ c_page
}
$ L_rst = $ conn-> PageExecute ($ sqlview, $ num, $ c_page); // execute the pageExecute function
$ Rst_view = $ conn-> execute ($ sqlview );
$ Record = count ($ rst_view-> GetRows (); // obtain the total number of records
If ($ record = 0 ){
Echo "no records currently ";
} Else {
?>


































 
  While (! $ L_rst-> EOF ){?> 
    $ L_rst-> movenext ();}?> 
  
  
  
  
 
   
 
    
Meeting No.
 
    
Meeting name
 
    
Department name
 
    
Meeting place
 
    
Meeting Date
 
    
Host
 
    
Attendees
 
    
Recorder
 
    
Meeting Summary
 
    
View details
 
   
 
    
 Fields [0];?>
 
    
 Fields [1];?>
 
    
 Fields [2];?>
 
    
 Fields [3];?>
 
    
 Fields [4];?>
 
    
 Fields [5];?>
 
    
 Fields [6];?>
 
    
 Fields [7];?>
 
    
 Fields [8];?>
 
    
Fields [0];?> ', '', 'Height = 720, width = 1004, scrollbars = no');">
 
   
 
 









 
 
  
  
  
 
   
 
    

Current is AbsolutePage ();?> Page/total LastPageNo ();?> Page
 

If (! $ L_rst-> AtfirstPage () {// if the current page is not the homepage
?>



 
"> Homepage
AbsolutePage ()-1);?> "> Previous Page
 
 }
If (! $ L_rst-> AtlastPage () {// if the current page is not the last page
?>
 
AbsolutePage () + 1);?> "> Next page
LastPageNo ();?> "> Last Page
 

 }
?> }
?>
 
 
    
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------ Solution ----------------------
It is actually from the "> homepage
This involves url-based value passing. when a link is uploaded to the address bar, the $ _ GET [] array intercepts it, because the $ _ GET [] array is a global variable array, intercepted values in the address bar.
Unfortunately, no one answered correctly.