RE: [PHP] Session confusion again :( - Thanks!
On 14 April 2004 17:53, Paul Fine wrote:
Thanks guys but I have register globals ON so once the
session variable is
defined I should be able to address it without specifying $_SESSION ?
I don't think the documentation is clear on this point -- it may be that the
association between the global variable and the $_SESSION array doesn't
take until the next page load and session_start(), and in any case the
behaviour seems to be different between 4.2 and 4.3. I *think* you may have
to session_register('element_countp') to make the association in the current
page, but this is buggy and seriously disrecommended in 4.2 (although fixed
in 4.3).
Personally, I'd just use the $_SESSION[] variable anyway, and not bother
with the equivalent global.
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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Re: [PHP] Session confusion again :( - Thanks!
Actually for me it isn't unclear at all:
The (super-) global variables are created when php starts working on
your script.
That pesky function/ini parameter (register_globals=on) is just a
replacement for an extract() on each of the global vars just then.
Whatever you do later with any of the variables is up to you - that
extract won't 'run' again - even with register_globals on
Similar to this: if you change some $_POST or $_GET var 'manually' the
$_REQUEST doesn't get updated ...
Richard
Thursday, April 15, 2004, 1:35:19 PM, you wrote:
On 14 April 2004 17:53, Paul Fine wrote:
Thanks guys but I have register globals ON so once the
session variable is
defined I should be able to address it without specifying $_SESSION ?
I don't think the documentation is clear on this point -- it may be that the
association between the global variable and the $_SESSION array doesn't
take until the next page load and session_start(), and in any case the
behaviour seems to be different between 4.2 and 4.3. I *think* you may have
to session_register('element_countp') to make the association in the current
page, but this is buggy and seriously disrecommended in 4.2 (although fixed
in 4.3).
Personally, I'd just use the $_SESSION[] variable anyway, and not bother
with the equivalent global.
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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RE: [PHP] Session confusion again :( - Thanks!
BOOT mailto:[EMAIL PROTECTED] on Wednesday, April 14, 2004 9:40 AM said: What I can't understand is why Test1 shows as nothing, while Test2 shows the value I wanted. Thanks a lot! [snip] $_SESSION['element_countp'] = count($p_lnames); echo TEST 1.$element_countp; $element_countp = $_SESSION['element_countp']; echo TEST 2.$element_countp; because in test 1 $element_countp has not been assigned anything yet. $_SESSION['element_countp'] and $element_countp are *not* the same variable (it appears that you think they are). in test 2 you assign the value of $_SESSION['element_countp'] to $element_countp so that's why test 2 works. hth, chris. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Session confusion again :( - Thanks!
On 14 April 2004 17:40, BOOT wrote: Any help with this would be appreciated. the p and v lnames are posted from a form. In the form, the user seperates last names with a /. What I can't understand is why Test1 shows as nothing, while Test2 shows the value I wanted. Thanks a lot! $p_lnames= explode(/, $p_lnames); $_SESSION['element_countp'] = count($p_lnames); echo TEST 1.$element_countp; Because here, you haven't assigned anything to $element_countp -- you've only assigned it to $_SESSION['element_countp']. (With register_globals Off, the two are not the same.) If you turned your error_reporting level up to E_ALL, you'd probably get a warning at this point saying that $element_countp is undefined. $element_countp = $_SESSION['element_countp']; echo TEST 2.$element_countp; Now you've assigned a value to $register_countp, so you get it output. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Beckett Park, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Session confusion again :( - Thanks!
Thanks guys but I have register globals ON so once the session variable is defined I should be able to address it without specifying $_SESSION ? -Original Message- From: Chris W. Parker [mailto:[EMAIL PROTECTED] Sent: April 14, 2004 11:48 AM To: BOOT; [EMAIL PROTECTED] Subject: RE: [PHP] Session confusion again :( - Thanks! BOOT mailto:[EMAIL PROTECTED] on Wednesday, April 14, 2004 9:40 AM said: What I can't understand is why Test1 shows as nothing, while Test2 shows the value I wanted. Thanks a lot! [snip] $_SESSION['element_countp'] = count($p_lnames); echo TEST 1.$element_countp; $element_countp = $_SESSION['element_countp']; echo TEST 2.$element_countp; because in test 1 $element_countp has not been assigned anything yet. $_SESSION['element_countp'] and $element_countp are *not* the same variable (it appears that you think they are). in test 2 you assign the value of $_SESSION['element_countp'] to $element_countp so that's why test 2 works. hth, chris. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Session confusion again :( - Thanks!
'Chris W. Parker' [EMAIL PROTECTED] elucidated: Thanks guys but I have register globals ON so once the session variable is defined I should be able to address it without specifying $_SESSION ? WHERE do you have it on? Most sites now have it turned off for VERY valid security reasons. If you are turning it on in your prepend file - Sorry, too late. The only two places to turn it back on, to my knowledge, is in your ini file for the site, or your .htaccess file as a directive. Only those two places are before the GPC processing. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Session confusion again :( - Thanks!
Yes in php.ini. I never bothered turning off as (a) I did not take the time to understand the implications and (b) my project is only for internal network use anyway. So I went and turned them off. Now of course my pages don't work properly. I guess I have to go through all my code and address the variables properly ie. $_POST and $_SESSION? Thanks! Dennis Gearon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] 'Chris W. Parker' [EMAIL PROTECTED] elucidated: Thanks guys but I have register globals ON so once the session variable is defined I should be able to address it without specifying $_SESSION ? WHERE do you have it on? Most sites now have it turned off for VERY valid security reasons. If you are turning it on in your prepend file - Sorry, too late. The only two places to turn it back on, to my knowledge, is in your ini file for the site, or your .htaccess file as a directive. Only those two places are before the GPC processing. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Session confusion again :( - Thanks!
BOOT mailto:[EMAIL PROTECTED]
on Wednesday, April 14, 2004 12:17 PM said:
So I went and turned them off. Now of course my pages don't work
properly. I guess I have to go through all my code and address the
variables properly ie. $_POST and $_SESSION?
no.
just assign them at the beginning of your file.
CURRENT FILE:
?php
echo $username is logged in!!;
echo hello $username, you are logged in.;
?
WHAT I THINK YOU WOULD CHANGE IT TO:
?php
echo {$_GET['username']} is logged in!!;
echo hello {$_GET['username']}, you are logged in.;
?
WHAT YOU SHOULD DO INSTEAD:
?php
$username = $_GET['username'];
echo $username is logged in!!;
echo hello $username, you are logged in.;
?
of course. don't forget to validate your incoming data.
hth,
chris.
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Re: [PHP] Session confusion again :( - Thanks!
But if I want to use $username accross many pages then I will have to make
it a session variable and call it as such on each page like
$_SESSION['username']
Thanks again!
Chris W. Parker [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
BOOT mailto:[EMAIL PROTECTED]
on Wednesday, April 14, 2004 12:17 PM said:
So I went and turned them off. Now of course my pages don't work
properly. I guess I have to go through all my code and address the
variables properly ie. $_POST and $_SESSION?
no.
just assign them at the beginning of your file.
CURRENT FILE:
?php
echo $username is logged in!!;
echo hello $username, you are logged in.;
?
WHAT I THINK YOU WOULD CHANGE IT TO:
?php
echo {$_GET['username']} is logged in!!;
echo hello {$_GET['username']}, you are logged in.;
?
WHAT YOU SHOULD DO INSTEAD:
?php
$username = $_GET['username'];
echo $username is logged in!!;
echo hello $username, you are logged in.;
?
of course. don't forget to validate your incoming data.
hth,
chris.
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RE: [PHP] Session confusion again :( - Thanks!
BOOT mailto:[EMAIL PROTECTED] on Wednesday, April 14, 2004 12:37 PM said: But if I want to use $username accross many pages then I will have to make it a session variable and call it as such on each page like $_SESSION['username'] correct. c. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
