Re: How to preserve value , this question so difficult
| From: | Thomas Edward Lawrence | Date: | Thu, 14 Aug 2003 05:50:40 +0000 |
| Subject: | Re: How to preserve value , this question so difficult | ||
| References: | 1 2 | Groups: | php.windows |
| Request: | Send a blank email to php-windows+get-21137@lists.php.net to get a copy of this message | ||
Excellent , thank so much , and I also want to ask why my browser warns this
when I run page1.php at first time , whether I must make something in
php.ini , I use IE6 , win2k , thank for your anwsering .
Warning: Cannot send session cookie - headers already sent by (output
started at C:\PHP\baitap\session.php:11) in C:\PHP\baitap\session.php on
line 12
Warning: Cannot send session cache limiter - headers already sent (output
started at C:\PHP\baitap\session.php:11) in C:\PHP\baitap\session.php on
line 12
Notice: Undefined index: value in C:\PHP\baitap\session.php on line 13
1
Next page
"J.Veenhuijsen" <info@solid-digital.nl> wrote in message
news:3F3A55F2.2060708@solid-digital.nl...
> Try this for page 2:
>
> <?php
> session_start() ;
> ?>
> <form method="POST" action="page1.php">
> <?php
> $value++ ;
> echo $value ;
> ?>
> <br>
> <input type="submit" value="Submit" name="B1">
> </form>
>
> In your version session_start() should be sent before any other output
> is sent.
>
> Jochem
>
>
>
> Thomas Edward Lawrence wrote:
> > this is page1.php
> > <?
> > session_start() ;
> > echo $value ;
> > if (!session_is_registered("value") )
> > {
> > session_register("value") ;
> > $value = 1 ;
> > }
> > echo $value ;
> > ?>
> > <br>
> > <a href="page2.php">Next page</a>
> >
> > this is page2.php
> >
> > <form method="POST" action="page1.php">
> > <?
> > session_start() ;
> > $value++ ;
> > echo $value ;
> > ?>
> > <br>
> > <input type="submit" value="Submit" name="B1">
> > </form>
> >
> > when I come back to page1.php from page2.php , this is result :
> >
> > page1.php ( run at first time)
> >
> > Warning: Cannot send session cookie - headers already sent by (output
started at C:\PHP\page1.php:9) in C:\PHP\\page1.php on line 10
> >
> > Warning: Cannot send session cache limiter - headers already sent
(output started at C:\PHP\page1.php:9) in C:\PHP\page1.php on line 10
> >
> > Notice: Undefined variable: value in C:\PHP\page1.php on line 11
> >
> > 1 (value of $value)
> >
> > Next page
> >
> >
> > page2.php
> >
> > Warning: Cannot send session cache limiter - headers already sent
(output started at C:\PHP\page2.php :10) in C:\PHP\page2.php on line 11
> >
> >
> > 2 (value of $value)
> >
> >
> >
> >
> > page1.php ( when come back from page2.php)
> >
> > Warning: Cannot send session cookie - headers already sent by (output
started at C:\PHP\page1.php :9) in C:\PHP\page1.php on line 10
> >
> > Warning: Cannot send session cache limiter - headers already sent
(output started at C:\PHP\page1.php:9) in C:\PHP\page1.php on line 10
> >
> > Notice: Undefined variable: value in C:\PHP\page1.php on line 11
(browser not understanding $value)
> >
> > 1 (value of $value still 1)
> >
> >
> > Next page
> >
> >
> >
> > Nothing changes , value of $value still is 1 , this question is so
difficult , I also want to ask why my browser warns , how I must config in
php.ini , I use IE6 , win2k , thank for reading .
>