PHP Forum

**stupid21** · 01:42 PM

Ok i have to make a Class C subnet calculator for my PhP homework.

I have the html page made ( http://roecomputer.com/Stevie3/sub3.html )

I just need a code that will print the first 3 Octets that the person types in and it will calculate how many bits they selected / The number of hosts / and the Maximum Subnets

But the page that it is getting from i dont have any code for it yet.

Can someone please help me....

I tryed to use this code that i typed but its not working.

Quote:

<html>
<head>
<title>Answer</title>
</head>
<body>

<BODY bgcolor="#0099CC">

<?php
$bitsOne = filter_input(INPUT_GET,"bitsOne");
print "<h3>You Selected, $bitsOne , bits!</h3>";

$bits = (1,6)

if ( $bits == 1) {
print "You Chose 1 Bits";
"There are 126 Hosts Per Subnet";
"There are 2 Maximum Subnets";
}

if ( $bits == 2) {
print "You Chose 2 Bits";
"There are 62 Hosts Per Subnet";
"There are 4 Maximum Subnets" ;
}

if ( $bits == 3) {
print "You Chose 3 Bits";
"There are 30 Hosts Per Subnet";
"There are 8 Maximum Subnets"
}

if ( $bits == 4) {
print "You Chose 4 Bits";
"There are 14 Hosts Per Subnet";
"There are 16 Maximum Subnets";
}

if ( $bits == 5) {
print "You Chose 5 Bits";
"There are 6 Hosts Per Subnet";
"There are 32 Maximum Subnets" ;
}

if ( $bits == 6) {
print "You Chose 6 Bits";
"There are 2 Hosts Per Subnet";
"There are 64 Maximum Subnets" ;
}

?>

</body>
</html>

I just need a code like that ^ so it will print the first 3 Octets that the person types in and it will calculate how many bits they selected / The number of hosts / and the Maximum Subnets

Please help me!

**stupid21** · 02-11-2010, 01:42 PM

Also the code that i posted dont work...
I looked over it but i cant figure it out.

I just need it to Print what they type in the Octet boxes and need it to caculate from what they put in the Bits box...

**lynxus** · 03:32 PM

While i cant be bothered to write a subnet calc to show you ( google it? )
http://sourceforge.net/projects/subntcalc/

A simple way to work out how many hosts for each network is

256 - (4th octet)

Thi scan be used for class b and a addresses, just use more math.

IE:

a /30 range would be.
255.255.255.252

256 - 255.255.255."252" = 4 ( 4 hosts )

ie:
10.0.0.0 /30 ( 4 hosts )

10.0.0.0 - network ( not usable )
.1 - usable
.2 - usable
.3 - broadcast ( not usable )
.4 - network ( of next /30 )
.5.
.6
.7
.8 /30
etc etc

Ipv6 on the other hand...... Good luck.

I hope this helps with your logic.

**stupid21** · 02-11-2010, 03:54 PM

Well i kinda know how to calculate it...
It just that i know dont how to put it into php and make it work and show up correctly

**lynxus** · 02-11-2010, 03:56 PM

I dont get why you have $bits predefined?
$bitsOne isnt being called?

$bitsOne = filter_input(INPUT_GET,"bitsOne");
print "<h3>You Selected, $bitsOne , bits!</h3>";

$bits = (1,6)

**lynxus** · 02-11-2010, 03:57 PM

Also you may need a ;

at teh end of

$bits = (1,6)

**lynxus** · 04:07 PM

OK does this work?

PHP Code:


			



<html>
<head>
<title>Answer</title>
</head>
<body>

<BODY bgcolor="#0099CC">



<?php
$bits = filter_input(INPUT_GET,"bitsOne");
// Or if its coming from a webform
// $bits = $_POST['bitsone'];
print "<h3>You Selected, $bitsOne , bits!</h3>";

switch ($bits) {
    case 1:
echo "<br>You Chose 1 Bits";
echo "<br>There are 126 Hosts Per Subnet";
echo "<br>There are 2 Maximum Subnets";
        break;
    case 2:
echo "<br>You Chose 2 Bits";
echo "<br>There are 62 Hosts Per Subnet";
echo "<br>There are 4 Maximum Subnets" ;
    case 3:
echo "<br>You Chose 3 Bits";
echo"<br>There are 30 Hosts Per Subnet";
echo"<br>There are 8 Maximum Subnets";
    case 4:
echo "You Chose 4 Bits";
echo"<br><br>There are 14 Hosts Per Subnet";
echo"<br>There are 16 Maximum Subnets";
        break;
    case 5:
echo "<br>You Chose 5 Bits";
echo "<br>There are 6 Hosts Per Subnet";
echo "<br>There are 32 Maximum Subnets" ;
        break;
    case 6:
echo "<br>You Chose 6 Bits";
echo "<br>There are 2 Hosts Per Subnet";
echo "<br>There are 64 Maximum Subnets" ;
        break;
}



?>

</body>
</html>

**stupid21** · 02-11-2010, 04:28 PM

It gave me this error when i tryed to type in a subnet and use it

The server encountered an unexpected condition which prevented it from fulfilling the request.
The script had an error or it did not produce any output. If there was an error, you should be able to see it in the error log.

**chrishirst** · 02-11-2010, 04:33 PM

And the error log shows??

**lynxus** · 02-11-2010, 04:34 PM

Check there are semicolons at the end of each echo. ;

How are you sending the script the data? from a web form or from the command line?

**stupid21** · 02-11-2010, 04:35 PM

From the web...
I have them on a Bizland file manager website.
http://roecomputer.com/Stevie3/sub3.html is the website were you type in you octet ands the bits you want to barrow. I have that working i think... Its just when you type your stuff in i dont have the page done that calculates it and stuff

**lynxus** · 02-11-2010, 04:38 PM

ok

2 things.

Change your form from:

<form method="get"
action="test.php">

to
<form method="POST"
action="test.php">

Then in the php script,
Change

<?php
$bits = filter_input(INPUT_GET,"bitsOne");
// Or if its coming from a webform
// $bits = $_POST['bitsone'];
print "<h3>You Selected, $bitsOne , bits!</h3>";

to

<?php
$bits = $_POST['bitsone'];
print "<h3>You Selected, $bitsOne , bits!</h3>";

**stupid21** · 02-11-2010, 04:42 PM

Should i put $bits or $bitsOne senese thats what i named it in the script as.

**lynxus** · 02-11-2010, 04:43 PM

leave it as $bits as thats what we call later on for the switch statement.

Its only called bitsone in your form , and that has no bearing on the php code as we chuck that data into the $bits var.

**lynxus** · 02-11-2010, 04:45 PM

also on your form html,
change

<input type="text"
name="bitsOne"
value=""/>

to

<input type="text"
name="bitsOne" id="bitsOne"
value=""/>
</td>

</td>

**stupid21** · 02-11-2010, 04:49 PM

SO far this is what i have but its not working

For my HTML page i have

Quote:

<html>
<head>

<title>How Many Bits</title>
<link rel="stylesheet"
type="text/css"
href="bitsOne.css"/>

</head>

<body>

<BODY bgcolor="#CC3300">

<h1>Class C Subnet Calculator</h1>

<form method="POST"
action="test.php">

<fieldset>

<table border="1"
cellspacing="8">

<tr>
<td>
<label>
Octet 1:
</label>

<input type="text"
name="octet1"
value=""/>

<label>
Octet 2:
</label>

<input type="text"
name="octet2"
value=""/>

<label>
Octet 3:
</label>

<input type="text"
name="octet3"
value=""/>

<label>
Octet 4:
</label>

<input type="text"
name="octet4"
value=""/>

<br />
<tr>
<td>
<label>
Please type How Many Bits:
</label>

<input type="text"
name="bitsOne" id="bitsOne"
value=""/>
</td>

</td>
</td>
</tr>

<tr>
<td>
<BUTTON TYPE=SUBMIT>
<IMG SRC="http://www.xuriel.com/blocksets/img/fire.gif" HEIGHT=55
WIDTH=105 ALT="Starflower" ALIGN="ABSMIDDLE">
<STRONG>Calculate!</STRONG></BUTTON>
</td>
</tr>

</fieldset>
</form>
</body>
</html>

**stupid21** · 02-11-2010, 04:50 PM

and for my test.php i have

Quote:

<html>
<head>
<title>Answer</title>
</head>
<body>

<BODY bgcolor="#0099CC">

<?php
$bitsOne = $_POST['bitsOne'];
print "<h3>You Selected, $bitsOne , bits!</h3>";

$bitsOne = (1,6);

if ( $bitsOne == 1) {
print "You Chose 1 Bits";
"There are 126 Hosts Per Subnet";
"There are 2 Maximum Subnets";
}

if ( $bitsOne == 2) {
print "You Chose 2 Bits";
"There are 62 Hosts Per Subnet";
"There are 4 Maximum Subnets" ;
}

if ( $bitsOne == 3) {
print "You Chose 3 Bits";
"There are 30 Hosts Per Subnet";
"There are 8 Maximum Subnets"
}

if ( $bitsOne == 4) {
print "You Chose 4 Bits";
"There are 14 Hosts Per Subnet";
"There are 16 Maximum Subnets";
}

if ( $bitsOne == 5) {
print "You Chose 5 Bits";
"There are 6 Hosts Per Subnet";
"There are 32 Maximum Subnets" ;
}

if ( $bitsOne == 6) {
print "You Chose 6 Bits";
"There are 2 Hosts Per Subnet";
"There are 64 Maximum Subnets" ;
}

?>

</body>
</html>

**lynxus** · 02-11-2010, 04:50 PM

OK!!!

Works here

http://217.174.254.30/shiznit/test.html

test.html

Code:

<html>
<head>

<title>How Many Bits</title>
<link rel="stylesheet"
type="text/css"
href="bitsOne.css"/>

</head>



<body>

<BODY bgcolor="#CC3300">

<h1>Class C Subnet Calculator</h1>

<form method="POST"
action="test.php">

<fieldset>


<table border="1"
cellspacing="8">

<tr>
<td>
<label>
Octet 1:
</label>

<input type="text"
name="octet1"
value=""/>



<label>
Octet 2:
</label>

<input type="text"
name="octet2"
value=""/>



<label>
Octet 3:
</label>

<input type="text"
name="octet3"
value=""/>


<label>
Octet 4:
</label>

<input type="text"
name="octet4"
value=""/>


<br />
<tr>
<td>
<label>
Please type How Many Bits:
</label>

<input type="text"
name="bitsOne" id="bitsOne"
value=""/>
</td>

 </tr>

<tr>
<td>
<BUTTON TYPE=SUBMIT>
<IMG SRC="http://www.xuriel.com/blocksets/img/fire.gif" HEIGHT=55
WIDTH=105 ALT="Starflower" ALIGN="ABSMIDDLE">
<STRONG>Calculate!</STRONG></BUTTON>
</td>
 </tr>



</fieldset>
</form>

</body>
</html>

test.php

Code:

<html>
<head>
<title>Answer</title>
</head>
<body>

<BODY bgcolor="#0099CC">



<?php
$bits = $_POST['bitsOne'];
print "<h3>You Selected, $bitsOne , bits!</h3>";

switch ($bits) {
    case 1:
echo "<br>You Chose 1 Bits";
echo "<br>There are 126 Hosts Per Subnet";
echo "<br>There are 2 Maximum Subnets";
        break;
    case 2:
echo "<br>You Chose 2 Bits";
echo "<br>There are 62 Hosts Per Subnet";
echo "<br>There are 4 Maximum Subnets" ;
    case 3:
echo "<br>You Chose 3 Bits";
echo"<br>There are 30 Hosts Per Subnet";
echo"<br>There are 8 Maximum Subnets";
    case 4:
echo "You Chose 4 Bits";
echo"<br><br>There are 14 Hosts Per Subnet";
echo"<br>There are 16 Maximum Subnets";
        break;
    case 5:
echo "<br>You Chose 5 Bits";
echo "<br>There are 6 Hosts Per Subnet";
echo "<br>There are 32 Maximum Subnets" ;
        break;
    case 6:
echo "<br>You Chose 6 Bits";
echo "<br>There are 2 Hosts Per Subnet";
echo "<br>There are 64 Maximum Subnets" ;
        break;
}



?>

</body>
</html>

**stupid21** · 02-11-2010, 04:50 PM

Should i change my test.php to the one that you posted? with the echo's?

**stupid21** · 02-11-2010, 04:53 PM

Omg i love you.....

the only thing wrong is that its showing this

Quote:

You Selected, 2 , bits!

You Chose 2 Bits
There are 62 Hosts Per Subnet
There are 4 Maximum Subnets
You Chose 3 Bits
There are 30 Hosts Per Subnet
There are 8 Maximum SubnetsYou Chose 4 Bits

There are 14 Hosts Per Subnet
There are 16 Maximum Subnets

I just need it to show the Bits that they chose