Help with array

[tqla]

Hello. I have an array called $subzz that looks like this

 

array(3) {
  [0]=>
  string(1) "3"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "1"
}

 

I can echo any of the values like this: echo $subzz['2']

 

But what I am trying to do is look at each value and change another variable accordingly.

 

For example:

 

if $subzz['2'] equals 1 then $var = 100

if $subzz['1'] equals 2 then $var = 50

if $subzz['0'] equals 2 then $var = 5

 

I suspect I need to use a loop of some kind but I am failing to figure out how to do it.

 

Can someone show me how to tackle this? Thanks.

[jcbones]

if($subzz[2] == 1) {
$var = 100;
}
elseif( $subzz[1] == 2) {
$var = 50;
}
elseif( $subzz[0] == 2) {
$var = 5;
}

[tqla]

I will do that ultimately but the array will change dynamically depending on who is logged in.

 

Sometimes it will look like this:

array(3) {
  [0]=>
  string(1) "3"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "1"
}

 

Sometimes it will look like this:

array(3) {
  [0]=>
  string(1) "2"
  [1]=>
  string(1) "1"
}

 

Sometimes like this:

array(3) {
  [0]=>
  string(1) "5"
  [1]=>
  string(1) "4"
  [2]=>
  string(1) "3"
  [3]=>
  string(1) "2"
  [4]=>
  string(1) "1"
}

 

and so on.

 

It changes depending on who is logged on the website.

 

Is there anyway to cycle through it first to see what's there?

[jcbones]

That information would have resulted in a much better answer.

 

Is the array value tied to the variable value in any way?

[tqla]

(yeah, I shuda wrote more, sry)

 

It's not tied to another variable. It's a DB query.

 

But you got me thinking. A "switch" statement will work perfectly here.

 

Thanks jcbones.

[drisate]

Is there anyway to cycle through it first to see what's there?

 

you can cycle through it by doing this

foreach($array as $value){

}

[jcbones]

Could try something like:

 

<?php
$array = array(3,2,1); //array holding your db values.

$variables = array(100,50,5); //array holding your var values, this array should be set up so the key is the expected value of your DB array.

foreach($array as $k => $v) {
if(array_key_exists($k,$variables)) {
   $var[] = $variables[$k];
}
}

//This is all just echoing back to the screen.
echo '<pre>';
var_dump($array);
var_dump($variables);
var_dump($var);


$array = $var; //re-assign array to var.

echo 'Your array now holds:';

var_dump($array);
echo '</pre>';
?>

[tqla]

Hey jcbones, I tried your code and got the following. The last 3 arrays are the same. Is this what you were after?

 

array(3) {
  [0]=>
  string(1) "3"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "1"
}
array(3) {
  [0]=>
  int(100)
  [1]=>
  int(50)
  [2]=>
  int(5)
}
array(3) {
  [0]=>
  int(100)
  [1]=>
  int(50)
  [2]=>
  int(5)
}
Your array now holds:
array(3) {
  [0]=>
  int(100)
  [1]=>
  int(50)
  [2]=>
  int(5)
}

[jcbones]

Yes, it is just showing you how you can change your DB array (1st array) to list as your desired variable array (last array).

 

Take your DB array, and change up the values, and you will notice that the values in the last array change places.

[tqla]

Ah ha. Thanks. I ended up using in_array and then a switch statement but yours was a good lesson.