I'm a beginner who needs help. READING CHECKBOXES and TOTALLING THEM UP.

boom_roasted · January 27, 2010

A user is supposed to check the boxes on what they want in their order(checkdemo.html). Then when they submit it, the php file should tell them what they ordered and also it is supposed to total up the cost of all the selected items(checkdemo.php).

Screenshot of checkdemo.html:

THIS IS CHECKDEMO.HTML

<html>
<head>
<title>Checkbox Demo</title>
</head>
<body>
<h1>Checkbox</h1>

<h3>Demonstrates Checkboxes</h3>

<form action = "checkDemo.php">

<h3>What would you like with your order?</h3>
<ul>
<li><input type = "checkbox"
name = "chkFries"
value = "1.00">Fries
</li>
<li><input type = "checkbox"
name = "chkSoda"
value = ".85">Soda
</li>

<li><input type = "checkbox"
name = "chkShake"
value = "1.30">Shake
</li>

<li><input type = "checkbox"
name = "chkKetchup"
value = ".05">Ketchup
</li>



</ul>

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

</body>
</html>

THIS IS CHECKDEMO.PHP

<html>
<head>
<title>Checkbox Demo</title>
</head>
<body>
<h3>Demonstrates reading checkboxes</h3>

<?

print <<<HERE

chkFries: $chkFries <br>
chkSoda: $chkSoda <br>
chkShake: $chkShake <br>
chkKetchup: $chkKetchup <br>
<hr>

HERE;


$total = 0;

if (!empty($chkFries)){
print ("You chose Fries <br> \n");
$total = $total + $chkFries;
} // end if

if (!empty($chkSoda)){
print ("You chose Soda <br> \n");
$total = $total + $chkSoda;
} // end if

if (!empty($chkShake)){
print ("You chose Shake <br> \n");
$total = $total + $chkShake;
} // end if

if (!empty($chkKetchup)){
print ("You chose Ketchup <br> \n");
$total = $total + $chkKetchup;
} // end if

print "The total cost is \$$total \n";

?>
</body>
</html>

Here is what comes up when I submit the html file (having all checkboxes checked:

RussellReal · January 27, 2010

first you need to get the values.. try

$chkFries = $_REQUEST['chkFries'];

and all the others for all the others.

teamatomic · January 27, 2010

1. In the checkdemo file

<?

$chkFries = $_POST['chkFries'];

/// do this for every checkbox or any other form widgets you choose to make.

print <<<HERE

2. to your form tag add:

method="POST"

3. examine some form tutorials. You need to understand the logic and various methods used to process forms.

HTH

Teamatomic

jmr3460 · January 27, 2010

I believe your form checkboxes should have the same name like name="order" and your value should define the value of the checkbox, value="fries".

<form method="post" action="do_form.php>
<input type="checkbox" name="order[]" value="fries"> Fries
<input type="checkbox" name="order[]" value="hamburger"> Hamburger
<input type="checkbox" name="order[]" value="coke"> Coke
<input type="submit" name="submit" value="SUBMIT ORDER">

This form is very simple html. Then you should create a php script that would process the order searching a database table for the field of fries, then selecting a field in that row which would have the price of that product.

See if this gets you started in the right direction. Good Luck.

boom_roasted · January 27, 2010

1. In the checkdemo file

<?

$chkFries = $_POST['chkFries'];

/// do this for every checkbox or any other form widgets you choose to make.

print <<<HERE

2. to your form tag add:

method="POST"

3. examine some form tutorials. You need to understand the logic and various methods used to process forms.

HTH

Teamatomic

When I do all that and rerun it, I get an error:

Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING' in E:\indigoampp\apache-2.2.11\htdocs\ph03\checkDemo.php on line 12

boom_roasted · January 27, 2010

Line 12 happens to be:

$chkFries = $_POST['chkFries'];

boom_roasted · January 27, 2010

OK OK OK. TIME OUT! RESTART!

I took out each of the lines like this:

$total = $total + $chkFries;

And it works (aside from telling the total.

boom_roasted · January 27, 2010

Please help. I'm going crazy!!!!!!!

boom_roasted · January 27, 2010

Giving this one last try before I give up for the night.

teamatomic · January 27, 2010

And we will happily watch as you go crazy unless you show us some code and the error you get.

HTH

Teamatomic

chayan19 · January 27, 2010

hello...i have created a PHP script where you can sum up accordingly and display the result ....without using a database....it's workin for me juss check am giving you the page created using dreamweaver...

?php

$x=$_POST;

$t=0;

if(isset($_POST[take])){

if($x['dosa']){

$p=25;

$t=$t+$p;

}

if($x['vada']){

$q=30;

$t=$t+$q;

}

if($x['paw']){

$r=10;

$t=$t+$r;

}

echo "your total is".$t ;

}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Untitled Document</title>

</head>

<body>

<p>

</p>

<tr>

</tr>

</table>

<tr><td width="97">Masala dosa </td>

</tr>

<tr>

</tr>

<tr>

<td>Paw Bhaji </td>

</tr>

</table>

<p>

</p>

</form>

</div>

</body>

</html>

chayan19 · January 27, 2010

i don't think is going to work for large number of check boxes because in that case you will have to write multiple if else statements which is very time consuming does anybody have any other way of doing it.....?/???

RussellReal · January 27, 2010

name="options[fries]" value="1.00"

name="options[ketchup]" value="0.50"

etc

then..

foreach ($_POST['options'] as $key => $value) {

echo "{$key} -> {$value}";

}

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I'm a beginner who needs help. READING CHECKBOXES and TOTALLING THEM UP.

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