form validation

Hi all,
I want to learn about server side form validation.I have the following source code. But i dont know the meaning of $_SERVER['PHP_SELF']. When i ran this code it shows an error. The error says multiple choice.

Expand|Select|Wrap|Line Numbers

 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

 <head>

  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

  <title>New HTML Document</title>

 </head>

 <body>

 <?php

   if(isset($_POST['posted'])){

     if($_POST['q1']=="answer1" && $_POST['q2']=="answer2")

      echo  "Right" ;

     else echo "Wrong";

   }
 
   ?>

  <form  method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">

  <input type="hidden" name="posted" value="true">

  What is the answer of first question?

  <br>

  <input type="radio" name="q1" value="answer1">Answer1

  <br> 

  <br>

  <input type="radio" name="q1" value="answer2">Answer2

  <br>

  <br>

  <input type="radio" name="q1" value="answer3">Answer3

  <br>

  <br>

  <input type="radio" name="q1" value="answer4">Answer4

  <br>

  <br>

  What  is the answer of second question?

  <br>

  <input type="radio" name="q2" value="answer1">Answer1

  <br> 

  <br>

  <input type="radio" name="q2" value="answer2">Answer2

  <br>

  <br>

  <input type="radio" name="q2" value="answer3">Answer3

  <br>

  <br>

  <input type="radio" name="q2" value="answer4">Answer4

  <input type="submit" value="   submit  " >
 
  </form>
 
 </body>

</html>

Aug 19 '08 #1

Subscribe Post Reply

1242

Markus

6,050

Expert 4TB

Please use code tags when posting code in the forums - read the posting guidelines to find out about codee tags.

the error says what now? Please give the full error - we're not psychics.

Aug 19 '08 #2

pbmods

5,821

Expert 4TB

rubelpasha, you were asked by a moderator on July 9 to start using CODE tags:

[CODE=php]
PHP code goes here.
[/CODE]

This message serves as your official warning. Continued violation of the site Posting Guidelines will result in account suspension.

If you have any questions or concerns, feel free to contact me anytime.

Thanks for your time.

pbmods

Aug 19 '08 #3

nathj

938

Expert 512MB

Did you try a Google search on $_SERVER['PHP_SELF']?

Check out this article

As for the error if you want help with that specifically then I suggest you post the error message.

I have now spent a few minutes running your code and discovered one problem.
You have:
[PHP]
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">

change to
[PHP]
<form method="post" action=<?php echo '"' .$_SERVER['PHP_SELF'] . '"'; ?>>

[/PHP]

This then does what it is supposed to.
Cheers
nathj

Aug 20 '08 #4

Atli

5,058

Expert 4TB

This then does what it is supposed to.

No actually, that wouldn't change a thing.

The server doesn't know, or care, what all the other stuff in the page is, it only looks for
<?php ?> tags and execute that as PHP code, whether that is inside quotes or not.

Aug 20 '08 #5

Atli

5,058

Expert 4TB

Hi all,
I want to learn about server side form validation.I have the following source code. But i dont know the meaning of $_SERVER['PHP_SELF']. When i ran this code it shows an error. The error says multiple choice.

I tried your code on my test server. I worked perfectly fine.

Did you post the right code?

Aug 20 '08 #6

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