|
|
Posted by Jerry Stuckle on 12/05/06 03:25
Steve JORDI wrote:
> Jerry,
> I include the class definition before the start session
> the PHP.INI is not set to start sessions automatically.
>
> Maybe some code excerpts would help...
>
>
> Here is the index.php start file:
> --------------------------------
> <?php
> include_once( "class_welcome.php" ) ;
> session_start() ;
> ini_set("display_errors","1");
> error_reporting(E_ALL);
> header("Location: ./passeportswelcome.php") ;
> ?>
>
>
>
> then I have passeportswelcome.php:
> ----------------------------------
> <body>
> <FORM action="<?=$_SERVER['PHP_SELF']?>" method="post">
> <?php
>
> if( !isset( $_SESSION['welcome'] ) )
> $_SESSION['welcome'] =& Welcome::getInstance() ;
>
> if(isset($_POST['next'])) {
> $_SESSION['welcome']->nextRecords() ;
> }
> else {
> if(isset($_POST['previous'])) {
> $_SESSION['welcome']->prevRecords() ;
> }
> else {
> $_SESSION['welcome']->showRecords() ;
> }
> }
>
> ?>
>
> <P>
> <INPUT name="previous" type="submit" value="<<" />
> <INPUT name="next" type="submit" value=">>" />
> </FORM>
> </body>
>
>
>
> and finally, here is the begining of the class_welcome.php:
> -----------------------------------------------------------
> <?php
> // **********************************************************
> // CLASS WELCOME
> // Displays records in a table
> // Limited to nn records with nn chunks offsets
> //
> // This is a SINGLETON
> // Use it in your main form as $obj = &Welcome::getInstance() ;
> // **********************************************************
> class Welcome {
> var $offsetRows = 25;
> var $currentRow ;
>
>
> // **********************************************************
> // INSTANCE function to instanciate this class only once
> // **********************************************************
> function &getInstance() {
> static $instance ;
> if( !$instance ) {
> $instance = new Welcome() ;
> }
> return $instance ;
> }
>
> // **********************************************************
> // CONSTRUCTOR function called when object is created
> // **********************************************************
> function Welcome() {
> $this->currentRow = 0 ;
> $this->offsetRows = 25 ;
> }
>
>
> // **********************************************************
> // SHOWRECORDS
> // Displays the actual table with info in rows.
> // **********************************************************
> function showRecords() {
> // display code
> }
>
> // **********************************************************
> // NEXTRECORDS
> // **********************************************************
> function nextRecords() {
> $this->currentRow += $this->offsetRows ;
> $this->showRecords() ;
> }
> }
> ?>
>
>
> What it does is correctly display my table from rows 0 to 25 going
> through (I've added "echo" to each function)
> ***WELCOME INSTANCE INIT***
> ***WELCOME CONSTRUCTOR***
> ***WELCOME INSTANCE ***
> ***SHOW RECORDS***
>
> Then if I click on the ">>" button (being "next" in the form), it
> goes through
> ***WELCOME INSTANCE INIT***
> ***WELCOME CONSTRUCTOR***
> ***WELCOME INSTANCE ***
> ***NEXT RECORDS***
> ***SHOW RECORDS***
>
> As you can see, it instances Welceom again and goes again through
> the constructor which initializes $currentRow to 0 again...
> It should skip "Instance init" and "constructor".
>
> Thanks
>
>
>
> Sincerely,
> Steve JORDI
>
> (Remove the K_I_L_LSPAM from my email address)
> ------------------------------------------------
> 1197 Prangins Email: stevejordiK_I_L_LSPAM@hotmail.com
> Switzerland WWW: www.sjordi.com
> ------------------------------------------------
> Volcanoes at www.sjordi.com/volcanoes
> MovieDB at www.sjmoviedb.com
> ------------------------------------------------
Ah, now I see the problem.
When you make the call
header("Location: ./passeportswelcome.php") ;
you are telling the browser to load a new page. But on that page you
don't have a session-start() - or the include for your class.
Since it's a new page, everything starts over. You need the include and
session_start() call here, also.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================
Navigation:
[Reply to this message]
|