Getting value using PHP and HTML

Question

Hello i am writing a calculator in PHP and php is working fine, Now what i want is to get value from users.

Im not sure what im missing or i have to use any JS file to do it. I have inbuilt value set $v = 1000000; but i want user to set value as per there need. Also want inbuild remain for defualt user. I think im not using correct way for form.

html

<form action="index.php" method="Get">
Value: <input type="text" name="v" />
<input type="submit" />
</form>

php

<?php
$i = 0;
$v = 1000000;
do {
    $i++;
    $pay  = round($v + $i);
    echo "<tr><td><b>Value</b> $" . number_format($v) . "</td><tr>";
    $v = $v + $bid;
} while ($i <= 5);
?>

I have modified and hide my other personal codes :)

fixed: $v = isset($_GET['v']) ? (int)$_GET['v'] : 1000000;

Thanks in advance live : http://ffsng.deewayz.in/

Mihai Iorga · Accepted Answer · 2012-09-28 08:31:33Z

3

As your form uses $_GET you have to assign that to your $v variable, but with condition, if isset.

Change:

$v = 1000000;

to:

$v = isset($_GET['v']) ? (int)$_GET['v'] : 1000000;

answered Sep 28, 2012 at 8:31

Mihai Iorga

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Comments

Fluffeh · Accepted Answer · 2012-09-28 08:31:46Z

3

You need to get the value back from the form on the reload like this:

$v = $_GET['v'];

Otherwise the GET value is simply not used in your code.

Mihai correctly points out that if a form value isn't set, you will get an error if your code tries to use is, so run with the test first.

answered Sep 28, 2012 at 8:31

Fluffeh

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2 Comments

Fluffeh Over a year ago

@DeepakKumar They are really the same thing, except Mihai introduced a test to see if it is passed, if not, it assigns a default value, otherwise it uses the value sent. Use his code (it is a more thorough code sample than mine - which really only addressed the fact that you were not doing anything with the GET data).

Deepak Kumar Over a year ago

Yes i understood thanks so much for solving out my question. very thankfull to you guys :)

user1686487 · Accepted Answer · 2012-09-28 09:49:56Z

1

Just do this

    <?php
$i = 0;
$v =$_GET['v'];
do {
    $i++;
    $pay  = round($v + $i);
    echo "<tr><td><b>Value</b> $" . number_format($v) . "</td><tr>";
    $v = $v + $bid;
} while ($i <= 5);
?>

answered Sep 28, 2012 at 9:49

user1686487

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