php-general Digest 5 Jan 2011 07:54:26 -0000 Issue 7116
php-general Digest 5 Jan 2011 07:54:26 - Issue 7116
Topics (messages 310489 through 310497):
Re: Two forms on one page
310489 by: Jim Lucas
310490 by: Jim Lucas
310492 by: Paul M Foster
310493 by: Jim Lucas
Re: session_id() is not passed to the next page
310491 by: Al
Unload/reload included class
310494 by: Patrik Pomichal
mysqli fetch-fields returns blob for text
310495 by: Mari Masuda
Two forms on one page - THE ANSWER
310496 by: Ethan Rosenberg
[SOLVED] Re: session_id() is not passed to the next page
310497 by: Michelle Konzack
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---BeginMessage---
On 1/4/2011 7:53 AM, Ethan Rosenberg wrote:
At 03:45 AM 1/4/2011, you wrote:
Ethan,
Ok, I would do this with what I would call wizard steps...
On 1/3/2011 3:17 PM, Ethan Rosenberg wrote:
Oooops - left out the text that was supposed to be in the quotes.
Dear List -
I would like to have two(2) forms in one PHP script. I would like to
have the forms appear sequentially; ie, that the first form would
appear, the data would be entered, and then the second form would
appear, the data would be entered, and the script would exit.
The code below displays both forms simultaneously. After the data is
entered for the first form, the second form appears again. After the
data is entered for the second form, the script displays the statement
Enter your date of birth, in mm/dd/ format: from the first form.
Would you please help me correct the script so that it will perform as
required.
Thanks.
Here is the code:
To go back to what I originally wrote. I found 1 error in the second form.
Here is the corrected form.
?php session_start(); ?
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
htmlbody
?php
switch ( @$_POST['next_step'] )
{
case 'step3':
if ( empty($_SESSION['dob']) )
die('DOB was not set in session...');
$dateArr = explode('/', @$_SESSION['dob']);
// calculate timestamp corresponding to date value
$dateTs = strtotime($_POST['dob']);
// calculate timestamp corresponding to 'today'
$now = strtotime('today');
// check that the value entered is in the correct format
if ( sizeof($dateArr) != 3 )
die('ERROR: Please enter a valid date of birth');
// check that the value entered is a valid date
if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
die('ERROR: Please enter a valid date of birth');
// check that the date entered is earlier than 'today'
if ( $dateTs = $now )
die('ERROR: Please enter a date of birth earlier than today');
// calculate difference between date of birth and today in days
// convert to years
// convert remaining days to months
// print output
$ageDays = floor(($now - $dateTs) / 86400);
$ageYears = floor($ageDays / 365);
$ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
echo You are approximately $ageYears years and $ageMonths months old.;
break;
case 'step2':
$_SESSION['dob'] = @$_POST['dob'];
echo FORM
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
FORM;
break;
case 'step1':
default:
echo FORM
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
FORM;
}
?
/body/html
If this isn't it, I think you should explain (in sudo code) exactly the steps
you are expecting things to.
Example sudo code
1. display form 'A'
2. Person enters dob and presses submit
3. processing script stores dob submitted
4. display form 'B'
5. person enters name of kitten and presses submit
6. processing script retrieves dob previously stored
7. calculate age
8. display age
...
10. What happen to the kitten???
Form 'A':
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
Form 'B':
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
Anyways, that is the idea.
Let us know.
Jim
Please correct my errors.
Thanks again.
Ethan
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Re: [PHP] Two forms on one page
Ethan,
Ok, I would do this with what I would call wizard steps...
On 1/3/2011 3:17 PM, Ethan Rosenberg wrote:
Oooops - left out the text that was supposed to be in the quotes.
Dear List -
I would like to have two(2) forms in one PHP script. I would like to
have the forms appear sequentially; ie, that the first form would
appear, the data would be entered, and then the second form would
appear, the data would be entered, and the script would exit.
The code below displays both forms simultaneously. After the data is
entered for the first form, the second form appears again. After the
data is entered for the second form, the script displays the statement
Enter your date of birth, in mm/dd/ format: from the first form.
Would you please help me correct the script so that it will perform as
required.
Thanks.
Here is the code:
?php session_start(); ?
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
htmlbody
?php
switch ( @$_POST['next_step'] )
{
case 'step3':
if ( empty($_SESSION['dob']) )
die('DOB was not set in session...');
$dateArr = explode('/', @$_SESSION['dob']);
// calculate timestamp corresponding to date value
$dateTs = strtotime($_POST['dob']);
// calculate timestamp corresponding to 'today'
$now = strtotime('today');
// check that the value entered is in the correct format
if ( sizeof($dateArr) != 3 )
die('ERROR: Please enter a valid date of birth');
// check that the value entered is a valid date
if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
die('ERROR: Please enter a valid date of birth');
// check that the date entered is earlier than 'today'
if ( $dateTs = $now )
die('ERROR: Please enter a date of birth earlier than today');
// calculate difference between date of birth and today in days
// convert to years
// convert remaining days to months
// print output
$ageDays = floor(($now - $dateTs) / 86400);
$ageYears = floor($ageDays / 365);
$ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
echo You are approximately $ageYears years and $ageMonths months old.;
break;
case 'step2':
$_SESSION['dob'] = @$_POST['dob'];
echo FORM
form method=post action=
input type=hidden type=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
FORM;
break;
case 'step1':
default:
echo FORM
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
FORM;
}
?
/body/html
This is completely untested, typed directly in the email client. Most
of the code is cut/paste from your examples. But, it should give you a
good starting point for a multi-step form type.
Jim
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Re: [PHP] session_id() is not passed to the next page
On Tuesday 04 January 2011,
Michelle Konzack linux4miche...@tamay-dogan.net wrote:
Hello,
Hello...
I am rewriting currently a login script and I encountered a problem with
sessions. While reading the two pages
http://php.net/manual/de/function.session-start.php
http://bugs.php.net/bug.php?id=14636
Well, probably this is not a problem of PHP. You must try looking at
your page errors. The PHP session mechanism tries to write some headers
with the session ID (a cookie).
I have not found a solution for my problem:
8--
function fncLogin($user, $pass, $redirect, $type='pam') {
if ($user != '' and $pass != '') {
$TEXT = FONT size=\+2\ color=\red\BError/B/FONTbr
/\n; $TEXT .= HR size=\3\ noshade=\noshade\\n;
$TEXT .= The username does not exist or the password is wrong.p
/\n; $TEXT .= p /\n;
$TEXT .= Please go a href=\ . $_SERVER['HTTP_REFERER'] .
\back/a and try it again.\n;
if ($type == 'pam') {
if (pam_auth($user, $pass, $PAM_ERR) === FALSE) {
fncError('2', $TEXT, $errpage='false');
exit();
}
} elseif ($type == 'shadow') {
$shadow_file = DIR_HOST . /.shadow;
if (is_file($shadow_file)) {
$SHADOW = exec(grep \^ . $user . :\ . DIR_HOST . /.shadow
|cut -d: -f2); if (empty($SHADOW)) {
}
$SALT=exec(grep \^$user:\ . DIR_HOST . /.shadow |cut -d:
-f2 |cut -d$ -f1-3); $ENCRYPTED=crypt($pass, $SALT);
if ($SHADOW != $ENCRYPTED) {
fncError('2', $TEXT, $errpage='false');
exit();
}
} else {
$TEXT = FONT size=\+2\ color=\red\BError/B/FONTbr
/\n; $TEXT .= HR size=\3\ noshade=\noshade\\n;
$TEXT .= This is a system error. I can not authenticate du to a
missing config.\n; $TEXT .= p /\n;
$TEXT .= Please inform the a href=\ . SYSAMIN .
\sysadmin/a and try it later again.\n; fncError('1', $TEXT,
$errpage='false');
exit();
}
}
session_register('sess_user');
session_register('sess_timeout');
$sess_user= $user;
$sess_timeout = time() + 900;
session_write_close();
header(Location: . $redirect);
}
exit();
}
8--
which call the following page correctly, but the two vars $sess_user and
$sess_timeout are empty.
Can someone please tell me how to do this?
Did you tried working with error_reporting(E_ALL) and looking if you have
the well known warning headers already sent?. Try to work with
error_reporting(E_ALL), instead of hiding errors. If you get that warning
or error means that the cookie for session id was not written, so you can't
handle the session id on the next page...
Try using session_start() as the very first call or session.auto_start = 1
in your php.ini (which is not recommended).
Thanks, Greetings and nice Day/Evening
Michelle Konzack
Best regards,
--
Daniel Molina Wegener dmw [at] coder [dot] cl
System Programmer Web Developer
Phone: +56 (2) 979-0277 | Blog: http://coder.cl/
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Re: [PHP] Flexible application plugin architecture, is this possible?
On Monday 03 January 2011,
Mike i...@snappymail.ca wrote:
I'm trying to design a powerful plugin system that doesn't require any
(or extremely little) modification to my existing large code base. Hook
based systems unfortunately don't seem to meet this requirement.
OK, that is a design problem...
Is something like this possible in PHP?
//Magic function I made up, similar to __call(),
//only it replaces new $class with its own return value.
function __instantiate( $class, $args ) {
$plugin_class = $class.'Plugin';
if ( file_exists( 'plugins/'.$plugin_class.'.php' ) {
$obj = new $plugin_class($args);
return $obj;
} else {
return new $class($args);
}
}
class MainClass {
function doSomething( $args ) {
echo MainClass doSomething() called...\n;
}
}
class MainClassPlugin extends MainClass {
function doSomething( $args ) {
echo MainClassPlugin doSomething() called...\n;
//Modify arguments if necessary
echo MainClassPlugin modifying arguments...\n;
$retval = parent::doSomething( $args );
//Modify function output, or anything else required
echo MainClassPlugin post filter...\n;
return $retval;
}
}
$main_class = new MainClass();
$main_class-doSomething( 'foo' );
Results:
MainClassPlugin doSomething() called...
MainClassPlugin modifying arguments...
MainClass doSomething() called...
MainClassPlugin post filter...
I realize PHP doesn't have this magical __instantiate function, but
does it have any similar mechanism that would work to automatically
load alternate classes, or have a class dynamically overload
itself during runtime?
Well, you can do this using abstract classes and interfaces. Also
you must try the autoloader:
http://php.net/manual/en/language.oop5.autoload.php
Probably this will help you a lot.
Best regards,
--
Daniel Molina Wegener dmw [at] coder [dot] cl
System Programmer Web Developer
Phone: +56 (2) 979-0277 | Blog: http://coder.cl/
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Description: This is a digitally signed message part.
[PHP] Re: Flexible application plugin architecture, is this possible?
'Twas brillig, and Mike at 03/01/11 23:37 did gyre and gimble:
I'm trying to design a powerful plugin system that doesn't require any
(or extremely little) modification to my existing large code base. Hook
based systems unfortunately don't seem to meet this requirement.
Is something like this possible in PHP?
//Magic function I made up, similar to __call(),
//only it replaces new $class with its own return value.
function __instantiate( $class, $args ) {
$plugin_class = $class.'Plugin';
if ( file_exists( 'plugins/'.$plugin_class.'.php' ) {
$obj = new $plugin_class($args);
return $obj;
} else {
return new $class($args);
}
}
I'd implement the above as a static factory method of your primary
class: e.g.
class MainClass {
public static function factory($args = null) {
$plugin_class = __CLASS__ . 'Plugin';
// Assume autoloading
if (class_exists($plugin_class))
return new $plugin_class($args);
return new self($args);
}
protected function __construct($args) {
}
function doSomething( $args ) {
echo MainClass doSomething() called...\n;
}
}
class MainClassPlugin extends MainClass {
function doSomething( $args ) {
echo MainClassPlugin doSomething() called...\n;
//Modify arguments if necessary
echo MainClassPlugin modifying arguments...\n;
$retval = parent::doSomething( $args );
//Modify function output, or anything else required
echo MainClassPlugin post filter...\n;
return $retval;
}
}
$main_class = new MainClass();
And replace this line with:
$main_class = MainClass::factory();
$main_class-doSomething( 'foo' );
Which, when run, does indeed produce your desired results.
Results:
MainClassPlugin doSomething() called...
MainClassPlugin modifying arguments...
MainClass doSomething() called...
MainClassPlugin post filter...
I realize PHP doesn't have this magical __instantiate function, but
does it have any similar mechanism that would work to automatically
load alternate classes, or have a class dynamically overload
itself during runtime?
Well difference techniques require different approaches, but certainly a
factory approach is likely the correct design solution here to get the
desired results.
Full code for convenience:
?php
class MainClass {
public static function factory($args = null) {
$plugin_class = __CLASS__ . 'Plugin';
// Assume autoloading
if (class_exists($plugin_class))
return new $plugin_class($args);
return new self($args);
}
protected function __construct($args) {
}
function doSomething( $args ) {
echo MainClass doSomething() called...\n;
}
}
class MainClassPlugin extends MainClass {
function doSomething( $args ) {
echo MainClassPlugin doSomething() called...\n;
//Modify arguments if necessary
echo MainClassPlugin modifying arguments...\n;
$retval = parent::doSomething( $args );
//Modify function output, or anything else required
echo MainClassPlugin post filter...\n;
return $retval;
}
}
$main_class = MainClass::factory('wibble');
$main_class-doSomething( 'foo' );
--
Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/
Day Job:
Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
Mageia Contributor [http://www.mageia.org/]
PulseAudio Hacker [http://www.pulseaudio.org/]
Trac Hacker [http://trac.edgewall.org/]
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Re: [PHP] Newbie Question
On Sun, 2011-01-02 at 21:10 -0500, David McGlone wrote: On Sunday, January 02, 2011 08:43:51 pm Larry Garfield wrote: On Sunday, January 02, 2011 4:56:28 pm Adolfo Olivera wrote: Thanks for the replies. I'll just put a php on all my html containing php. A little of topic. Wich IDE are you guys using. I'm sort of in a catch twenty two here. I been alternating vim and dreamweaver. I'm trying to go 100% open source, but I really find dreamweaver easier to use so far. I bounce between NetBeans and Eclipse, depending on which currently sucks less. I have yet to find a PHP IDE that doesn't suck; it's just degrees of suckage. :-) I use Kate. It doesn't suck at all because it doesn't try to do the coding for you :-) -- Blessings David M. Personally, for the longest time I used EditPlus++ on windows... used it for about 4-5 years. I knew it, I liked it... then i got a job where they used ZEND (basically Eclipse yes?) I started to like it once i got the hang of it... but that job only lasted 3 weeks. ANYWAY... I now use Komodo (the free version) on my ubuntu workstation, and I love it... I dont know how I managed before. From my observations and experience, it's all about personal preferences. If the one you use works for you, and you like it, then use it. I caught flack for some time when I told people I used EditPlus ++ for all my coding, but they just didn't know how to use the features. Good luck with your coding! and finding an IDE that works for you! (or just a standard text editor like VI if you desire) Steve -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Flexible application plugin architecture, is this possible?
Hi Colin,
I guess I'm on the right track then, I ended up doing something
similar to your suggestion, instead of using a Factory method in each
class I created a global function that can be used as the instantiator
instead.
The only advantage I see to doing it this way is that it will work for
classes that don't extend my base Factory class, so it requires the
least amount of existing code change as possible.
//The basis for the plugin system, instantiate all classes through this,
allowing the class to be overloaded on the fly by a class in the plugin
directory.
function MyInstantiator( $class_name ) { //Unlimited arguments are supported.
global $config_vars;
//Check if the plugin system is enabled in the config.
if ( isset($config_vars['other']['enable_plugins']) AND
$config_vars['other']['enable_plugins'] == 1 ) {
$plugin_class_name = $class_name.'Plugin';
if ( class_exists( $plugin_class_name, FALSE ) == FALSE ) {
//Class file needs to be loaded.
$plugin_directory = 'plugins';
$plugin_class_file_name = $plugin_directory .
DIRECTORY_SEPARATOR . $class_name .'.plugin.php';
if ( file_exists( $plugin_class_file_name ) ) {
@include_once( $plugin_class_file_name );
$class_name = $plugin_class_name;
}
} else {
//Class file is already loaded.
$class_name = $plugin_class_name;
}
}
if ( func_num_args() 1 ) {
$params = func_get_args();
array_shift( $params ); //Eliminate the class name argument.
$reflection_class = new ReflectionClass($class_name);
return $reflection_class-newInstanceArgs($params);
} else {
return new $class_name();
}
}
$main_class = MyInstantiator('MyClass', 'arg1', 'arg2', 'arg3');
$main_class-doSomething( 'foo' );
On Tue, 04 Jan 2011 11:43:13 +
Colin Guthrie gm...@colin.guthr.ie wrote:
'Twas brillig, and Mike at 03/01/11 23:37 did gyre and gimble:
I'm trying to design a powerful plugin system that doesn't require any
(or extremely little) modification to my existing large code base. Hook
based systems unfortunately don't seem to meet this requirement.
Is something like this possible in PHP?
//Magic function I made up, similar to __call(),
//only it replaces new $class with its own return value.
function __instantiate( $class, $args ) {
$plugin_class = $class.'Plugin';
if ( file_exists( 'plugins/'.$plugin_class.'.php' ) {
$obj = new $plugin_class($args);
return $obj;
} else {
return new $class($args);
}
}
I'd implement the above as a static factory method of your primary
class: e.g.
class MainClass {
public static function factory($args = null) {
$plugin_class = __CLASS__ . 'Plugin';
// Assume autoloading
if (class_exists($plugin_class))
return new $plugin_class($args);
return new self($args);
}
protected function __construct($args) {
}
function doSomething( $args ) {
echo MainClass doSomething() called...\n;
}
}
class MainClassPlugin extends MainClass {
function doSomething( $args ) {
echo MainClassPlugin doSomething() called...\n;
//Modify arguments if necessary
echo MainClassPlugin modifying arguments...\n;
$retval = parent::doSomething( $args );
//Modify function output, or anything else required
echo MainClassPlugin post filter...\n;
return $retval;
}
}
$main_class = new MainClass();
And replace this line with:
$main_class = MainClass::factory();
$main_class-doSomething( 'foo' );
Which, when run, does indeed produce your desired results.
Results:
MainClassPlugin doSomething() called...
MainClassPlugin modifying arguments...
MainClass doSomething() called...
MainClassPlugin post filter...
I realize PHP doesn't have this magical __instantiate function, but
does it have any similar mechanism that would work to automatically
load alternate classes, or have a class dynamically overload
itself during runtime?
Well difference techniques require different approaches, but certainly a
factory approach is likely the correct design solution here to get the
desired results.
Full code for convenience:
?php
class MainClass {
public static function factory($args = null) {
$plugin_class = __CLASS__ . 'Plugin';
// Assume autoloading
if (class_exists($plugin_class))
return new $plugin_class($args);
return new self($args);
}
protected function __construct($args) {
}
function
Re: [PHP] ErrorDocument 500 and PHP
On 03/01/2011 20:26, Ashley Sheridan wrote: On Mon, 2011-01-03 at 15:11 -0500, Bastien Koert wrote: On Mon, Jan 3, 2011 at 2:30 PM, David Lidstoned...@elocal.co.uk wrote: On 03/01/2011 18:38, Nilesh Govindarajan wrote: On 01/03/2011 11:46 PM, David Lidstone wrote: Hi First up, I apologise as this must have been posted before, but the server is so slow I can't search, or even read messages often. I'm using Thunderbird - any tips on how to access news.php.net faster!? In Apache, I can set ErrorDocument 404 /myerrorpage.php and it works. Doing the same but with a 500 error for a PHP script, it doesn't. I just get the PHP error printed on the screen. What I've seen on the net implies to me that PHP does not fully interact with Apache when it generates an error, and therefore this approach will not work. Is this correct? I just want to redirect to a PHP page on 500 error and run a small script. Any suggestions? Many thanks, David Basically, it is not a 500 error. It's an error produced by the php itself. The file which was run by php had some error, so php outputs that error to the client. This is actually a successful request when you see from the apache's eye. That's what I feared, although my server seems to send 500 headers but my local xampp install sends 200 headers. Strange. So what do people do about getting notified about errors? - I have too many sites to look after to manually sift through logs. I can't refactor every script with try / catch (which wouldn't catch compile bugs anyway)? How does Apache know to log the error with ErrorLog but not redirect with ErrorDocument? Is there a way I can piggy-back this behaviour instead? Sorry for so many questions, but the more I look at this the crazier it seems and most of the stuff on the net is just static! Perl interacts fully with Apache from what I can gather. Anyone know whether this is planned for the future? When I had to use IIS and ASP it had this functionality and it was very handy. Thanks again, David -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Check the php.ini file to ensure that error reporting is turned on. This will allow php to show you where/what the error is. For a dev box this is acceptable but should be turned off in production -- Bastien Cat, the other other white meat If the same sorts of errors are happening over and over, then you should look into it, as it could be affecting your users on the website. Try and unit test whatever parts you can, so that you can see what happens when a user interacts with your app. Thanks, Ash http://www.ashleysheridan.co.uk Thanks for your reply Ashley Unfortunately, this isn't really what I was getting at. I'm really just looking for something which will notify us every time there is an error on any of the very many disparate scripts / 'apps' running on a given server. There is no one app although many are built on a framework which has a boot-strap file similar to ZF so a set_error_handler solution, while far from ideal, may cover some bases if there is one? There are possible solutions I can think of such as parsing all the log files perhaps, but none of these are as elegant as what is available to Apache/Perl and IIS/ASP which is suprising to me as PHP usually covers all the bases. I'm hoping I'm just ignorant of that simple solution? I'm also interested in the functionality and interaction of PHP with Apache - I know little of this, but as noted in my original post, there appears on the surface to be some discrepancy about this interaction in terms of logging vs error documents. Perhaps I should be posting some of this in .internals or one of the other groups? Many thanks, David -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Do you trim() usernames and passwords?
At 12:04 PM + 12/31/10, Nathan Rixham wrote: Tamara Temple wrote: Sorry, I was mislead by your use of the phrase Users should not be copy-pasting passwords or usernames above. I'd love to hear what you think is an alternative to identifying with web app that keeps track of information about someone that is more secure. client side ssl certificates, they force http+tls (thus encryption over the wire and no chance of middleman attacks) and no usernames or passwords need to be passed, as you identify people by the public key held in their certificate, the TLS process ensures they have the private key. Nat: I was wondering when you would chime-in. The certificate example you provided me a few months ago was exceptional. I now believe that server-side data can be kept reasonably secure regardless of successful attacks on the server. Cheers, tedd -- --- http://sperling.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Two forms on one page
On 1/4/2011 7:53 AM, Ethan Rosenberg wrote:
At 03:45 AM 1/4/2011, you wrote:
Ethan,
Ok, I would do this with what I would call wizard steps...
On 1/3/2011 3:17 PM, Ethan Rosenberg wrote:
Oooops - left out the text that was supposed to be in the quotes.
Dear List -
I would like to have two(2) forms in one PHP script. I would like to
have the forms appear sequentially; ie, that the first form would
appear, the data would be entered, and then the second form would
appear, the data would be entered, and the script would exit.
The code below displays both forms simultaneously. After the data is
entered for the first form, the second form appears again. After the
data is entered for the second form, the script displays the statement
Enter your date of birth, in mm/dd/ format: from the first form.
Would you please help me correct the script so that it will perform as
required.
Thanks.
Here is the code:
To go back to what I originally wrote. I found 1 error in the second form.
Here is the corrected form.
?php session_start(); ?
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
htmlbody
?php
switch ( @$_POST['next_step'] )
{
case 'step3':
if ( empty($_SESSION['dob']) )
die('DOB was not set in session...');
$dateArr = explode('/', @$_SESSION['dob']);
// calculate timestamp corresponding to date value
$dateTs = strtotime($_POST['dob']);
// calculate timestamp corresponding to 'today'
$now = strtotime('today');
// check that the value entered is in the correct format
if ( sizeof($dateArr) != 3 )
die('ERROR: Please enter a valid date of birth');
// check that the value entered is a valid date
if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
die('ERROR: Please enter a valid date of birth');
// check that the date entered is earlier than 'today'
if ( $dateTs = $now )
die('ERROR: Please enter a date of birth earlier than today');
// calculate difference between date of birth and today in days
// convert to years
// convert remaining days to months
// print output
$ageDays = floor(($now - $dateTs) / 86400);
$ageYears = floor($ageDays / 365);
$ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
echo You are approximately $ageYears years and $ageMonths months old.;
break;
case 'step2':
$_SESSION['dob'] = @$_POST['dob'];
echo FORM
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
FORM;
break;
case 'step1':
default:
echo FORM
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
FORM;
}
?
/body/html
If this isn't it, I think you should explain (in sudo code) exactly the steps
you are expecting things to.
Example sudo code
1. display form 'A'
2. Person enters dob and presses submit
3. processing script stores dob submitted
4. display form 'B'
5. person enters name of kitten and presses submit
6. processing script retrieves dob previously stored
7. calculate age
8. display age
...
10. What happen to the kitten???
Form 'A':
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
Form 'B':
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
Anyways, that is the idea.
Let us know.
Jim
Please correct my errors.
Thanks again.
Ethan
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Re: [PHP] Two forms on one page
Sorry for top posting!
FYI: You might want to check the math in your calculations. It says that I am
41 when my birthday is tomorrow and I will be 36...
On 1/4/2011 10:08 AM, Jim Lucas wrote:
On 1/4/2011 7:53 AM, Ethan Rosenberg wrote:
At 03:45 AM 1/4/2011, you wrote:
Ethan,
Ok, I would do this with what I would call wizard steps...
On 1/3/2011 3:17 PM, Ethan Rosenberg wrote:
Oooops - left out the text that was supposed to be in the quotes.
Dear List -
I would like to have two(2) forms in one PHP script. I would like to
have the forms appear sequentially; ie, that the first form would
appear, the data would be entered, and then the second form would
appear, the data would be entered, and the script would exit.
The code below displays both forms simultaneously. After the data is
entered for the first form, the second form appears again. After the
data is entered for the second form, the script displays the statement
Enter your date of birth, in mm/dd/ format: from the first form.
Would you please help me correct the script so that it will perform as
required.
Thanks.
Here is the code:
To go back to what I originally wrote. I found 1 error in the second form.
Here is the corrected form.
?php session_start(); ?
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
htmlbody
?php
switch ( @$_POST['next_step'] )
{
case 'step3':
if ( empty($_SESSION['dob']) )
die('DOB was not set in session...');
$dateArr = explode('/', @$_SESSION['dob']);
// calculate timestamp corresponding to date value
$dateTs = strtotime($_POST['dob']);
// calculate timestamp corresponding to 'today'
$now = strtotime('today');
// check that the value entered is in the correct format
if ( sizeof($dateArr) != 3 )
die('ERROR: Please enter a valid date of birth');
// check that the value entered is a valid date
if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
die('ERROR: Please enter a valid date of birth');
// check that the date entered is earlier than 'today'
if ( $dateTs = $now )
die('ERROR: Please enter a date of birth earlier than today');
// calculate difference between date of birth and today in days
// convert to years
// convert remaining days to months
// print output
$ageDays = floor(($now - $dateTs) / 86400);
$ageYears = floor($ageDays / 365);
$ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
echo You are approximately $ageYears years and $ageMonths months old.;
break;
case 'step2':
$_SESSION['dob'] = @$_POST['dob'];
echo FORM
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
FORM;
break;
case 'step1':
default:
echo FORM
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
FORM;
}
?
/body/html
If this isn't it, I think you should explain (in sudo code) exactly the steps
you are expecting things to.
Example sudo code
1. display form 'A'
2. Person enters dob and presses submit
3. processing script stores dob submitted
4. display form 'B'
5. person enters name of kitten and presses submit
6. processing script retrieves dob previously stored
7. calculate age
8. display age
...
10. What happen to the kitten???
Form 'A':
form method=post action=
input type=hidden name=next_step value=step2 /
Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
Form 'B':
form method=post action=
input type=hidden name=next_step value=step3 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
Anyways, that is the idea.
Let us know.
Jim
Please correct my errors.
Thanks again.
Ethan
+++
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[PHP] Re: session_id() is not passed to the next page
On 1/3/2011 11:46 PM, Michelle Konzack wrote:
Hello,
I am rewriting currently a login script and I encountered a problem with
sessions. While reading the two pages
http://php.net/manual/de/function.session-start.php
http://bugs.php.net/bug.php?id=14636
I have not found a solution for my problem:
8--
function fncLogin($user, $pass, $redirect, $type='pam') {
if ($user != '' and $pass != '') {
$TEXT = FONT size=\+2\ color=\red\BError/B/FONTbr /\n;
$TEXT .= HR size=\3\ noshade=\noshade\\n;
$TEXT .= The username does not exist or the password is wrong.p /\n;
$TEXT .= p /\n;
$TEXT .= Please goa href=\ . $_SERVER['HTTP_REFERER'] . \back/a and
try it again.\n;
if ($type == 'pam') {
if (pam_auth($user, $pass,$PAM_ERR) === FALSE) {
fncError('2', $TEXT, $errpage='false');
exit();
}
} elseif ($type == 'shadow') {
$shadow_file = DIR_HOST . /.shadow;
if (is_file($shadow_file)) {
$SHADOW = exec(grep \^ . $user . :\ . DIR_HOST . /.shadow |cut -d:
-f2);
if (empty($SHADOW)) {
}
$SALT=exec(grep \^$user:\ . DIR_HOST . /.shadow |cut -d: -f2 |cut -d$
-f1-3);
$ENCRYPTED=crypt($pass, $SALT);
if ($SHADOW != $ENCRYPTED) {
fncError('2', $TEXT, $errpage='false');
exit();
}
} else {
$TEXT = FONT size=\+2\ color=\red\BError/B/FONTbr /\n;
$TEXT .= HR size=\3\ noshade=\noshade\\n;
$TEXT .= This is a system error. I can not authenticate du to a missing
config.\n;
$TEXT .= p /\n;
$TEXT .= Please inform thea href=\ . SYSAMIN . \sysadmin/a and
try it later again.\n;
fncError('1', $TEXT, $errpage='false');
exit();
}
}
session_register('sess_user');
session_register('sess_timeout');
$sess_user= $user;
$sess_timeout = time() + 900;
session_write_close();
header(Location: . $redirect);
}
exit();
}
8--
which call the following page correctly, but the two vars $sess_user and
$sess_timeout are empty.
Can someone please tell me how to do this?
Thanks, Greetings and nice Day/Evening
Michelle Konzack
Firefox has a great add-on that lets you see the server/client handshaking
headers httpFox e.g., Cookie: PHPSESSID=fc310ca5f2c708988bf456f691cc58c2
Thus you can easily see if PHPSESSID is set and returned to the server.
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Re: [PHP] Two forms on one page
On Tue, Jan 04, 2011 at 10:08:47AM -0800, Jim Lucas wrote: [snip] If this isn't it, I think you should explain (in sudo code) exactly the steps you are expecting things to. Example sudo code [snip] Normally I wouldn't comment on this (sorry, Jim), but for the foreigners on the list, sudo is a command under Unix/Linux which allows one to function as the root user. I suspect what Jim meant to write was pseudo (pronounced the same way as sudo in English), which means fake or pretend. English is one of those languages which is afflicted by lots of homonyms-- words which sound the same but are spelled differently and mean different things, even though they sound the same. Paul -- Paul M. Foster http://noferblatz.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Two forms on one page
On 1/4/2011 12:53 PM, Paul M Foster wrote: On Tue, Jan 04, 2011 at 10:08:47AM -0800, Jim Lucas wrote: [snip] If this isn't it, I think you should explain (in sudo code) exactly the steps you are expecting things to. Example sudo code [snip] Normally I wouldn't comment on this (sorry, Jim), but for the foreigners on the list, sudo is a command under Unix/Linux which allows one to function as the root user. I suspect what Jim meant to write was pseudo (pronounced the same way as sudo in English), which means fake or pretend. English is one of those languages which is afflicted by lots of homonyms-- words which sound the same but are spelled differently and mean different things, even though they sound the same. Paul Paul, Thanks for pointing that out. I sometimes write too fast... Jim -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Unload/reload included class
Hi there, I trying to create CLI php application. It running continuously (server) and it will has a plugins. I want load, unload and reload plugins on the fly, without stop the application. Loading plugin is easy, when my app found new file in plugins dir, include and register it. But if i change the plugin source i must restart the app to reload it. Have anyone idea, how i can unload included (loaded) class? Thank you for every response. Best regards. Patrik Pomichal PHP developer Slovakia -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] mysqli fetch-fields returns blob for text
Hello, On http://www.php.net/manual/en/mysqli.constants.php there are some predefined constants for MYSQLI_TYPE_TINY_BLOB, MYSQLI_TYPE_MEDIUM_BLOB, MYSQLI_TYPE_LONG_BLOB, and MYSQLI_TYPE_BLOB. Through some experimentation I have found that fields in my MySQL database that are declared as 'text' in MySQL are categorized by PHP as 'blob' when I compare the above constants to the field's type using http://www.php.net/manual/en/mysqli-result.fetch-fields.php. In the MySQL documentation http://dev.mysql.com/doc/refman/5.1/en/blob.html in the second paragraph it states: --- BLOB values are treated as binary strings (byte strings). They have no character set, and sorting and comparison are based on the numeric values of the bytes in column values. TEXT values are treated as nonbinary strings (character strings). They have a character set, and values are sorted and compared based on the collation of the character set. --- I was wondering if PHP's interpretation of 'text' as 'blob' could cause me any trouble down the road and what the workarounds are, if any. Thank you. Mari -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Two forms on one page - THE ANSWER
Jim -
Much thanks to you for solving a problem with which I have been
struggling for the last two weeks.
Here is the code:
===
?php session_start(); ?
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
?php
switch ( @$_POST['next_step'] )
{
case 'step1':
echo 'Your kittens name is '.htmlspecialchars($_POST['cat']);
echo FORM
form method=post action=
input type=hidden name=next_step value=step2 /
br /Enter your date of birth, in mm/dd/ format: br /
input type=text name=dob /
input type=submit name=submit value=Submit /
/form
FORM;
break;
case 'step2':
if ( empty($_POST['dob']) )
die('DOB was not set in session...');
if ( !preg_match('!^\d{2}/\d{2}/\d{4}$!', $_POST['dob'], $m) )
die('DOB was not properly formated, please try again.');
// calculate timestamp corresponding to date value
$dateTs = strtotime($_POST['dob']);
// calculate timestamp corresponding to 'today'
$now = strtotime('today'); $dateArr = explode('/', @$_POST['dob']);
// check that the value entered is a valid date
if ( !checkdate($dateArr[0], $dateArr[1], $dateArr[2]) )
die('ERROR: Please enter a valid date of birth');
// check that the date entered is earlier than 'today'
if ( $dateTs = $now )
die('ERROR: Please enter a date of birth earlier
than today');
// calculate difference between date of birth and today in days
// convert to years
// convert remaining days to months
// print output
$ageDays = floor(($now - $dateTs) / 86400);
$ageYears = floor($ageDays / 365);
$ageMonths = floor(($ageDays - ($ageYears * 365)) / 30);
echo You are approximately $ageYears years and $ageMonths
months old.;
break;
case 'step1':
default:
echo FORM
form method=post action=
input type=hidden name=next_step value=step1 /
Enter your kitten's name: br /
input type=text name=cat /
input type=submit name=submit value=Submit Kitten /
/form
FORM;
}
?
=
Ethan
MySQL 5.1 PHP 5.3.3-6 Linux [Debian (sid)]
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[PHP] [SOLVED] Re: session_id() is not passed to the next page
Hello Daniel Molina Wegener, Am 2011-01-04 07:43:46, hacktest Du folgendes herunter: Did you tried working with error_reporting(E_ALL) and looking if you have the well known warning headers already sent?. Try to work with error_reporting(E_ALL), instead of hiding errors. If you get that warning or error means that the cookie for session id was not written, so you can't handle the session id on the next page... Yes, and it is clean Try using session_start() as the very first call or session.auto_start = 1 in your php.ini (which is not recommended). I have already found the error. If my 00_main.inc is read in, I check first some required vars, then for the existence of three config files and then I output errors if something is wrong and if all is fine I contine and do session_start(). I have overseen that there is an include which was read before session_start() and created the problem... This is one reason, WHY I rewrite my scripst from the last 10 years. They where transformed in unreadable spagetti code. However, now I can use my login script with PAM, Shadow Passwords and One-Time Passwords which use a 8 letter TAN list. One-Time Passwords are very handy, if you have to access your website from unknown computers like in internet cafes or such. Thanks, Greetings and nice Day/Evening Michelle Konzack -- # Debian GNU/Linux Consultant ## Development of Intranet and Embedded Systems with Debian GNU/Linux itsyst...@tdnet France EURL itsyst...@tdnet UG (limited liability) Owner Michelle KonzackOwner Michelle Konzack Apt. 917 (homeoffice) 50, rue de Soultz Kinzigstraße 17 67100 Strasbourg/France 77694 Kehl/Germany Tel: +33-6-61925193 mobil Tel: +49-177-9351947 mobil Tel: +33-9-52705884 fix http://www.itsystems.tamay-dogan.net/ http://www.flexray4linux.org/ http://www.debian.tamay-dogan.net/ http://www.can4linux.org/ Jabber linux4miche...@jabber.ccc.de ICQ#328449886 Linux-User #280138 with the Linux Counter, http://counter.li.org/ signature.pgp Description: Digital signature
