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why my $_SERVER['PHP_SELF'] is not working

How would i go about making a PHP self submitting form that would accept HTML for input into a text box and output the result of the same html page... much like www.practiceboard.com ?

This is my basic form

when i press submit nothing shows...

<?php
if(isset($_POST['login'])){

                  $studentID = $_POST['studentID'];
                  $password = $_POST['Password'];
              echo $password;

                  $newStudent = new student;
                  $newStudent->login($studentID, $password);

                  }?>

<form method="post" id="customForm" action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>">
                  <div>
                        <label for="studentID">Student ID:</label>
                        <input id="studentID" name="studentID" type="text">

                  </div>
                  <div>
                        <label for="Password">Password:</label>
                        <input id="Password" name="Password" type="Password">

                  </div>

                  <div>
                        <input id="send" name="Login" type="submit" value="Login">
                  </div>
            </form>

StingRaY

Omitting "action" attribute causes the form submit to itself.

<form method="post" id="customForm">

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tankergoblin

ASKER

erm so is that mean do not use PHP_SELF?

i would like to use $_post['testing'] and show the variable in the same page... can i do that after i get rid of action?

StingRaY

Yes, unless you remove "method" attribute, you can access $_POST['studentID'].

tankergoblin

ASKER

why i received this error message?

Undefined index: studentID in \file\dir\...

but when i press submit it is working..

may i know in the sense of security is it safe

and why i saw some developer using this code?
action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>

Thank you.

tankergoblin

ASKER

i know i can use this below to get rid of the message

if (!isset($_POST['password']))
                                          {
                                          $_POST['password'] = " ";
                                          $password =$_POST['password'];
                                          }else{
                                          $password = $_POST['password'];
                                          }


but does it safe to do as above... and is it a good practise?

tankergoblin

ASKER

canot use isset is not working

ASKER CERTIFIED SOLUTION

StingRaY

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freeadvice

Your mistake is in the following line
if(isset($_POST['login'])){

use capital L for login i.e use

if(isset($_POST['Login'])){

Your script should work then.
This is because you have used capital L in the following line
<input id="send" name="Login" type="submit" value="Login">