use of session array

jamhussain

<form method="post" action="ecc.php">
<table bgcolor="#FFCC00" width="40" border="2" cellspacing="10">
<tr><td colspan="20"><input type="radio" name="type" value="1000" />1000 point </tr>
<tr><td colspan="20"><input type="radio" name="type" value="500" />500 point </tr>
<tr><td colspan="2" align="center"><input type="submit" name="submit" id="submit" />
</table>
 </form>

<?php

session_start();  

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

$_SESSION['a'][0] = $_POST['type'];
if($_SESSION['a'][0]== 1000)
{ $b==1000;}
 else
{ $b==500;}
 echo"the no is ".$b;

 }


?>

please check it that it is right. I want to save the value of radio button in a variable so that I may use it in further calculation.

bradgrafelman

When posting HTML or PHP code, please use the board's [noparse]

..

..

[/noparse] bbcode tags (respectively) as they make your code much easier to read and analyze.

jamhussain;11002170 wrote:
please check it that it is right.

Why? Isn't that your job?

If something isn't working or you're getting errors, then you should say so or at least ask a specific question.

NogDog

For debugging purposes, you can use something like the following to inspect what is in $SESSION (or any other array):

die("<pre>".print_r($_SESSION, true)."</pre>");

traq

It would be better to do your validation before you save the value to the session. That way, you don't have to check it every time you use it, and you're less likely to forget.

// define valid options
$valid = array( 1000,500 );

// make sure the submitted value is valid
if( in_array( $valid,$_POST['type'] ) ){
    // save it to your session
    $_SESSION['a'][0] = $_POST['type'];
}

// later ...
if( !empty( $_SESSION['a'][0] ) ){
    $b = $_SESSION['a'][0];
    print "The number is $b.";
}else{
    print '$_SESSION[a][0] was empty.';
}