Variables naming variables?

jaZon

Ok, here's what I have so far.

$result = mysql_query( "select * from rx where username = '$valid_user'");
		if (!$result)
		return false;

echo("<form name=test action=test_stuff.php method=post>");

$x = 0;	

while ($daps = mysql_fetch_array($result)){
	$x++;

	echo "<input type=text name='rx$x' value='$daps[rx_num]'><BR>";
	}

echo"<input type=hidden name=x value='$x'>";
echo"<input type=submit value=Submit>";
echo"</form>";

SO, what it's doing is pulling the rx number from the db and assigning it as a value to an auto-counted form input. The extra hidden value is so I can have a count on the next page. That's this:

	require_once("rx_fns.php");
	session_start();
	check_valid_user();

$i=0;
$numMax=$x;




while($i != $numMax){
	$i++;

	echo"$rx$i - <BR>";
}

The problem is that last part. $rx$i. I'm trying to call the value from the form and the i is supposed to be that autogenerated number from the first page. Not sure if that's explained very well, but it's the best I can muster as tired as I am.

ALSO, you may be asking what the point is. Well, my plan is to actually do something like the following:

Have the RX #s displayed on one page w/ checkboxes OR a javascript menu that allows mutiple selections. I think I'm leaning towards check boxes. THEN, when the form is posted the next page will check which values have been checked. Those values will THEN be echo'd and entered into a mail function. To me this could get complicated since a user could have any number of RX #'s. If someone is willing to help me with this plan, I am MORE than open to suggestions as I really am not sure how to go about this.

matt_4013

http://au.php.net/manual/en/language.variables.variable.php

you'll want $rx{$i}

jaZon

thanks for the reply, but that didn't work and that link blew my mind😕

matt_4013

It didn't work? Eeek!?! What did the name of the variable end up as? (You can use var_dump() to check this) 🙂

jaZon

I'm sure it's my fault. This is probably the worst possible way to even attempt what I'm trying to do.

I haven't done the var_dump, but I've tried echoing this:

echo"$rx${$i}";

in so many ways......$rx{$i} and so on....and all that is echoed is the value for i. $rx is completely ignored. The point is to combine rx and i into a variable and display the value that corresponds to them from the form on the previous page.

jaZon

Ok, I THINK I got it SOMEWHAT working, but still need help.

	$numMax=$i;
                $x=0;
	while($x != $numMax){
                                                $x++;
			$check = rx.$x;

		echo "${$check}";


			}
	}

Anyway, that actually gets the values behind the rx and allows that to display it's actual value upon doing so, BUT it only seems to go through the loop once!😕 😕 😕 😕

It displays the value for $rx1, but that's it. Any ideas why it won't display more than $rx1? The value for $rx2 is definitely passed to teh page because I can echo it straight out, but it is not being displayed in the loop!! HELP!