How to pass variables in php using GET without type?

Question

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

                      Food <input name="food" type="text"  size="1" />
                  Pizza <input name="pizza" type="text"  size="2" />
                  Drink <input name="drink" type="text" size="2"/>

Now I want to pass a third variable which is a concatenation of food+pizza+drink in the URL I don't want to create a new <input name="total" type="text" size="2"/>

Is this possible?

EDIT:

I want to do it before submitting the values.

I will have a url like
 http://www.abc.com/&food=tasty&pizza=cheeze&drink=pepsi
I want the url to be
 http://www.abc.com/&food=tasty&pizza=cheeze&drink=pepsi&total=tastypizzacheezepepsi

How would you differentiate between someone ordering 11 food and 2 pizzas and 1 drink v.s. someone ordering 1 food and 1 pizza and 21 drinks? Both would be 1121. — Marc B
– Marc B, Commented May 20, 2011 at 16:15

Blender · Accepted Answer · 2011-05-20 16:13:34Z

4

Why don't just do it on the server side?

$allTogether = $_GET["food"] . $_GET["pizza"] . $_GET["drink"];

edited May 20, 2011 at 16:13

Blender

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answered May 20, 2011 at 16:12

DanC

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Comments

Naftali · Accepted Answer · 2011-05-20 16:16:36Z

3

Well once it is submitted just concatenate (after validation)

$total = $_GET['food'] + $_GET['pizza'] + $_GET['drink'];
         //assuming the _GETs were numbers, otherwise use `.` to concatenate

Or if you don't want to do that, you would have to do some JavaScript magic on the client side (but that is not always trustworthy)

edited May 20, 2011 at 16:16

answered May 20, 2011 at 16:10

Naftali

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6 Comments

user212218 Over a year ago

You meant to use . instead of + to concatenate the string values, perhaps?

Naftali Over a year ago

@Phoenix, depends on what the information was. the OP used +

user212218 Over a year ago

Ah I see what you mean. It did not occur to me that the values of those inputs could be numeric.

Lightness Races in Orbit Over a year ago

The example has text for those values.

Naftali Over a year ago

@Tomalak, that was after the OP updated the Q, and i added a comment for that case

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user743234 · Accepted Answer · 2011-05-20 17:00:26Z

Assuming that you don't like the answers above using PHP to concatenate, you can use Javascript to do that.

<script type="text/javascript">
function addTotal(food, pizza, drink) {
   document.getElementById("total").value = food + drink + pizza;
}
</script>

<form method="get" name="fname" action="" onSubmit="addTotal(document.fname[0].value,document.fname[1].value,document.fname[2].value)" >
Food <input name="food" type="text"  size="1" />
Pizza <input name="pizza" type="text"  size="2" />
Drink <input name="drink" type="text" size="2"/> 
<input type="hidden" name="total" id="total" value="" />
</form>

And in your PHP file, you now should get

$_GET['food'];
$_GET['pizza'];
$_GET['drink'];
$_GET['total'];

kstev · Accepted Answer · 2011-05-20 16:13:23Z

1

This should do the trick

$sep = ""; //if you want a space in between each just change this to a space.
$concat = implode($sep, array($_GET['food'], $_GET['pizza'], $_GET['drink']));

answered May 20, 2011 at 16:13

kstev

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