[PHP] How do I output error messages

[Paul Goepfert]

Hi all,

I have a web page that I am doing valildation on.  I have figured out
how to at least get the page to load the page content.  What I can't
seem to figure out is how to output the error messages to the screen. 
The validation is being performed on the same page as the form that is
being validated.  The way the page is setup:

if (isset($submit))
{
  //vaildation code
}
else
{
//webpage
}

Thanks for the help,

Paul

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RE: [PHP] How do I output error messages

[Jay Blanchard]

[snip]
if (isset($submit))
{
  //vaildation code
}
else
{
//webpage
}
[/snip]

What is $submit? Is it set ever? The problem probably lies in the fact that
$submit, whatever it is, never gets set.

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RE: [PHP] How do I output error messages

[Jeremy Schreckhise]

You could pass your error message back and forth as an HTTP post.

$myMsg = $_GET['error_msg'];
if(isset($myMsg))
{
//print my message
}
else
{
//process as normal
}


-Original Message-
From: Paul Goepfert [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, February 21, 2006 12:53 PM
To: php-general@lists.php.net
Subject: [PHP] How do I output error messages

Hi all,

I have a web page that I am doing valildation on.  I have figured out how to
at least get the page to load the page content.  What I can't seem to figure
out is how to output the error messages to the screen. 
The validation is being performed on the same page as the form that is being
validated.  The way the page is setup:

if (isset($submit))
{
  //vaildation code
}
else
{
//webpage
}

Thanks for the help,

Paul

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http://www.php.net/unsub.php

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Re: [PHP] How do I output error messages

[Richard Lynch]

On Tue, February 21, 2006 12:52 pm, Paul Goepfert wrote:

$messages = array();

 if (isset($submit))
 {
   //vaildation code

Each invalid input adds another element to $messages array.
//E.G.:
if (!isset($_REQUEST['name'])) $messages[] = Name is a required
field.;

 }
 else
 {

if (count($messages)){
  echo p class=\error\, implode(br /\n, $messages), /p\n;
}

 //webpage
 }

You still need to take care that the //webpage itself is not made
insensible by the error conditions...

In extreme cases, such as the database being down and there being no
hope of the rest of the page being useful, I sometimes will do:

if (!$connection){
  head(Error); //This prints out masthead/navbar etc
  $messages[] = Unable to access database. Please try later.;
  echo p class=\error\, implode(br /\n, $messages), /p\n;
  foot(); //This closes all HTML tags from head()
  //both head and foot are defined in a single include file,
  //making it trivial to match up HTML open/close tags
}

It's not as slick as some CRM setups, but it's also not as
cumbersome and over-engineered (imho).

DSFDF

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Re: [PHP] How do I output error messages

[Paul Goepfert]

$submit is soppose to be set when the user submits the web form for
validation.  I am not sure but is there soppose to be a $submit =
input type=submit name=submit value=submit statement?

Paul

On 2/21/06, Jay Blanchard [EMAIL PROTECTED] wrote:
 [snip]
 if (isset($submit))
 {
   //vaildation code
 }
 else
 {
 //webpage
 }
 [/snip]

 What is $submit? Is it set ever? The problem probably lies in the fact that
 $submit, whatever it is, never gets set.


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