Variables Inside Variables

[StormTheGates]

Hello there. I need to do something like this:

 

$question1$answer++;

 

Basically an example of the output would be like

 

$question12++;

 

How do I do this? I remember having to do something with globals a while back.

[MadTechie]

Huh!

you lost me,

 

what are you trying to do ?

 

[obsidian]

I don't believe you can do it in the middle of the variable name like that, but you can do this:

<?php
$ans = 'question12';
${$ans}++
?>

[StormTheGates]

$q1{$questions[0]}++;

 

Would that work?

 

Whats drawn from the database is question answers 1-5. So I have variables like $q11 $q12 $q13 $q14 $q15 and I want to just be able to easily increment one without the use of if statements. So I was hoping to do $q1$answer to incrent say $q12 if the answer is 2.

[MadTechie]

maybe something like this

 

<?php

$q[1] = "What says meow!";
$a[1][1] = array("Cat",true);
$a[1][2] = array("Dog",false);
$a[1][3] = array("Snake",false);


foreach($q as $k => $qs)
{
echo $qs;
shuffle($a[$k]);
foreach($a[$k] as $L)
{
echo $L[0];
if($L[1]) echo "Correct";
echo "<br>";
}
}
?>

 

EDIT: this is untested

[PFMaBiSmAd]

Any time you have a set (two or more) of related data (a series of questions and answers), use an array to hold and manipulate the values. That is what arrays are for. Don't use sequentially named variables.