[PHP] undefined index and php
Before someone advises me to 'google' my question. I have and can't find a
PHP.net example either.
I have turned off registered globals and am updating my scripts so they work
but I keep getting an undefined index problem using $_POST
I tried this to set the value...
if (!isset($_POST['heading'])) {
$_POST ['heading'] = ;
}
because the following line give the notice 'undefined index' BEFORE the
submit button has been pressed..
? $heading_insert= stripslashes($_POST['heading']);?
R.
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Re: [PHP] undefined index and php
Ross wrote: because the following line give the notice 'undefined index' BEFORE the submit button has been pressed.. ? $heading_insert= stripslashes($_POST['heading']);? That's because before the submit button has been pressed, $_POST is empty and so 'heading' is indeed an undefined index. Try: $heading_insert = isset( $_POST['heading'] ) ? stripslashes( $_POST['heading'] ) : ''; By the way, while you're switching register_globals off, it might be a good idea to also switch off magic_quotes_gpc (the reason you need stripslashes() above) and short_open_tag (judging by your use of the non-portable ? open tag rather than ?php). Jasper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] undefined index and php
I have never really used this abreviated format before why the question mark and the colon? What is the long hang eqivalent. I turned magic quotes off too. thanks. R. - Original Message - From: Jasper Bryant-Greene [EMAIL PROTECTED] To: Ross [EMAIL PROTECTED] Cc: php-general@lists.php.net Sent: Thursday, November 10, 2005 12:19 PM Subject: Re: [PHP] undefined index and php Ross wrote: because the following line give the notice 'undefined index' BEFORE the submit button has been pressed.. ? $heading_insert= stripslashes($_POST['heading']);? That's because before the submit button has been pressed, $_POST is empty and so 'heading' is indeed an undefined index. Try: $heading_insert = isset( $_POST['heading'] ) ? stripslashes( $_POST['heading'] ) : ''; By the way, while you're switching register_globals off, it might be a good idea to also switch off magic_quotes_gpc (the reason you need stripslashes() above) and short_open_tag (judging by your use of the non-portable ? open tag rather than ?php). Jasper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] undefined index and php
The question mark and colon is the equivalent for the iif function. It's a short hand for if/else. You start with the expression, and if true, do what's after the question mark and if false, after the column. Robbert -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, November 10, 2005 4:58 AM To: php-general@lists.php.net Subject: Re: [PHP] undefined index and php I have never really used this abreviated format before why the question mark and the colon? What is the long hang eqivalent. I turned magic quotes off too. thanks. R. - Original Message - From: Jasper Bryant-Greene [EMAIL PROTECTED] To: Ross [EMAIL PROTECTED] Cc: php-general@lists.php.net Sent: Thursday, November 10, 2005 12:19 PM Subject: Re: [PHP] undefined index and php Ross wrote: because the following line give the notice 'undefined index' BEFORE the submit button has been pressed.. ? $heading_insert= stripslashes($_POST['heading']);? That's because before the submit button has been pressed, $_POST is empty and so 'heading' is indeed an undefined index. Try: $heading_insert = isset( $_POST['heading'] ) ? stripslashes( $_POST['heading'] ) : ''; By the way, while you're switching register_globals off, it might be a good idea to also switch off magic_quotes_gpc (the reason you need stripslashes() above) and short_open_tag (judging by your use of the non-portable ? open tag rather than ?php). Jasper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] undefined index and php
Robbert van Andel wrote: The question mark and colon is the equivalent for the iif function. It's a 'if () ...' is not a function it's a language construct. they are different :-) for instance 'echo' is also a language construct which is why it does not require brackets e.g. $space = ' '; echo hello,$space,world; short hand for if/else. You start with the expression, and if true, do what's after the question mark and if false, after the column. Robbert -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, November 10, 2005 4:58 AM To: php-general@lists.php.net Subject: Re: [PHP] undefined index and php I have never really used this abreviated format before why the question mark and the colon? What is the long hang eqivalent. I turned magic quotes off too. thanks. R. - Original Message - From: Jasper Bryant-Greene [EMAIL PROTECTED] To: Ross [EMAIL PROTECTED] Cc: php-general@lists.php.net Sent: Thursday, November 10, 2005 12:19 PM Subject: Re: [PHP] undefined index and php Ross wrote: because the following line give the notice 'undefined index' BEFORE the submit button has been pressed.. ? $heading_insert= stripslashes($_POST['heading']);? That's because before the submit button has been pressed, $_POST is empty and so 'heading' is indeed an undefined index. Try: $heading_insert = isset( $_POST['heading'] ) ? stripslashes( $_POST['heading'] ) : ''; By the way, while you're switching register_globals off, it might be a good idea to also switch off magic_quotes_gpc (the reason you need stripslashes() above) and short_open_tag (judging by your use of the non-portable ? open tag rather than ?php). Jasper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] undefined index and php
Hello. [EMAIL PROTECTED] wrote: why the question mark and the colon? What is the long hang eqivalent. That's the Ternary operator. Whether you want to get further information, go to: http://php.net/manual/en/language.operators.comparison.php Regards. -- Gustavo Narea. PHP Documentation - Spanish Translation Team. Valencia, Venezuela. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] undefined index and php
On Thu, November 10, 2005 5:54 am, Ross wrote:
Before someone advises me to 'google' my question. I have and can't
find a
PHP.net example either.
I have turned off registered globals and am updating my scripts so
they work
but I keep getting an undefined index problem using $_POST
I tried this to set the value...
if (!isset($_POST['heading'])) {
$_POST ['heading'] = ;
}
because the following line give the notice 'undefined index' BEFORE
the
submit button has been pressed..
? $heading_insert= stripslashes($_POST['heading']);?
This bit of code is getting run BEFORE the submit button has been
pressed.
In that case, $_POST itself is not defined, much less $_POST['heading']
You really shouldn't be stuffing values into $_POST. Think of it as a
read-only variable that the browser sends TO you.
Here are some options:
OPTION 1:
?php
$heading_insert = '';
if (isset($_POST['heading'])){
$heading_insert = stripslashes($_POST['heading']);
}
?
OPTION 2:
?php
$heading_insert = isset($_POST['heading']) ?
stripslashes($_POST['heading']) : '';
?
Some people think the ternary operator is confusing or obscure or
whatever. Others think it's a perfectly natural operator. YMMV
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