variables

[pianodevil]

alright, in the form from the previous page, the variables A, B, and C are posted

in the current page, i would like a variable R in the format of A/B/C

for example: if A's value was 12, B's value was 3, and C's value was 10, R would be: 12/3/10

here is wat i have, what have i done wrong?
<?php
$R = '$_POST['A']' + '/' + '$_POST['B']' + '/' + '$_POST['C']';

echo $R;
?>

[StupidScript]

Oh you Javascripters! ;)

Its two things: the syntax you're using to identify the new variable's elements and the method you're attempting to use for concatenation.

$R = $_POST['A']."/".$_POST['B']."/".$_POST['C'];

echo $R;

$_POST[]

is an array.

$_POST['A']

is an element of that array, not a string, so it doesn't get quoted.

/

is a string element. Also, be careful with using single-quotes instead of double-quotes, as in PHP single-quotes (apostrophes) can cause an object to be created, depending on where and how they are used. Neat, huh?

Welcome to PHP, where all things old are new again!

[ergophobe]

[edit]SS beat me to it[/edit]

You've done two things wrong
- you've enclosed the variables in single quotes
- you've used the wrong operator for concatenation

You want:

$R = $_POST['A'] . '/' . $_POST['B'] . '/' . $_POST['C'];