combine variable with other variable (tricky)

[nagasea]

Question :
How to combine variable with other variable (this must be confusing for you guys).
Maybe this can show you guys what I want.

$a = 1;
while ($a <= 5) {

   $combine.$a;   // 1'st try
   $combine.'$a'; // 2'nd try
   $combine$a;    // 3'rd try

$counter++;

	}

the reason I want to do that because I want to get $combine1, $combine2, $combine3

Anybody can show me ?

[lanjoky]

$a = 1; 
while ($a <= 5) { 

$combine.=$a; // each try 

$a++; 

} 
echo($combine)

I think this is what u want ... run it an see ...

[TomT64]

If you want to make the combined variable a string, this may work. Let's assume $a="first " and $b="second"

$a . "" . $b;

This makes sure it's a string, even if $a and $b are integers. So 1 and 2 would be "12"

If you want to combine some other way please be more specific

EDIT: I realize how stupid I sounded.... I didn't even address your problem

[weekender]

there is a thing called variable variables... what you can do is this

$a = 1;
while($a<5) {
//create a string varname
$varname = "combine" . $a;

//now create a variable from the value of varname
//so you will have $combine1 = "value1";
$$varname = "value1";
}

i've never really used it, but this is how i understand it to work. Read more at http://uk.php.net/manual/en/language.variables.variable.php

[kevinsequeira]

do u want to create a variable with a variable name, then do this

$a = 1;
while ($a <= 5) {

$varname = "combine".$a;

$$varname = $a;
$a++;

}

so at the end

$combine1 = 1
$combine2 = 2
$combine3 = 3
$combine4 = 4

this is similar to what weekender posted
reg
kevin

[weekender]

in fact it's exactly the same as my code 😉

[kevinsequeira]

😃 😃 not exactly, u havent incremented $a

reg
kevin

[nagasea]

here is my code can someone help me

===========================================================

index.php

<form method=\"post\" action=\"form.php\">
How many book ? <input type=text value=howmany>

<input type=submit name=action value=go>

===========================================================
form.php

<?
if ($POST['action']=="go") {
$howmany = $post['howmany'];

<form method=\"post\" action=\"form.php\">

$counter = 1;
while ($counter <= $howmany) {
echo " Book : <input type=text name=address-$counter>
<input type=submit name=action value=go2> ";
$counter++;
}
}

if ($POST['action']=="go2") {
$howmany = $post['howmany'];

$counter=1;
while ($counter <= $howmany) {
// here i want to load that POST address-1,2,3... (from ACTION=="go")
// and then assign variable to each address-1,2,3,...
$counter++;
{

                         }

?>

This is my problem today, and still cannot figure it out how to do it.
lots of ppl in this forum have been nice and helping me but I still can't figure it out.

[kevinsequeira]

// and then assign variable to each address-1,2,3,...

what do u mean by that ??

this is what i understand ...

$counter=1;
while ($counter <= $howmany) {
// here i want to load that POST address-1,2,3... (from ACTION=="go")
// and then assign variable to each address-1,2,3,...
$varname = "address-".$counter;
echo $varname." contains ";
echo $_POST['$varname']."<BR>";
$counter++;

}

[nagasea]

ok now we got : $_POST['$varname'].
how to assign that to variable ?

perhaps : $varname1, $varname2, ...

[nagasea]

oo man ! i found the problem here !
we can't use single quote in $_POST

$_POST[' $varname' ]

[laserlight]

you can use single quotes.

The reason why you cannot use them here is that you should not even bother with quotes in the first place, since you array index is not a literal string, but a variable that has a string value.

$POST['varname']
and
$POST["varname"]
is correct, but in this case you should be using
$POST[$varname]
or if you want to be redundant,
$POST["$varname"]