About <div> in PHP, please help...

[Hall of Famer]

Well I have a code that looks like this:

 

<div style='width:100%; text-align:center; float:left;'>{$array[0][0]}</div>
<div style='width:50%; text-align:center; float:left;'>{$array[1][0]}</div>
<div style='width:25%; text-align:center; float:left;'>{$array[2][0]}</div>
<div style='width:12.5%; text-align:center; float:left;'>{$array[3][0]}</div>

 

As you can see, the width percentage decreases by half as the first index of $array increases by 1. I was wondering if its possible to write a PHP code such that the width percentage is automatically adjusted based on the first index of array. I've tried the following way as below, but it wouldnt work:

 

<div style='width:{100/(2^$i)}%; text-align:center; float:left;'>{$array[$i][$j]}</div>

 

So do anyone of you know how to do this? Please help.

[requinix]

^ does not do what you think it does. Use pow.

[Hall of Famer]

umm are you sure the above codes will work if I use pow instead of ^? It looks like this is causing the trouble:

 

width:{100/(2^$i)}%;

[Buddski]

Try this

width:{(100/pow(2,$i))}%;

[Hall of Famer]

umm looks like it wont work, I am assuming it is impossible to write an expression to specify the width percentage? The following code works perfectly:

 

<div style='width:25%; text-align:center; float:left;'>{$array[2][0]}</div>

 

But this one wont:

<div style='width:{(100/pow(2,2))}%; text-align:center; float:left;'>{$array[2][0]}</div>

[Buddski]

My bad.

<div style='width:".(100/pow(2,2))."%; text-align:center;'>

[Hall of Famer]

Thank you so much, it works. And btw, can I resize images based on the same mechanism?

 

<img src='{$row['avatar']}' border=0 width='50' height='25' />

 

Can be converted into this?

 

<img src='{$row['avatar']}' border=0 width=".(100/pow(2,1))." height=".(100/pow(2,2))." />

[Buddski]

Cant see why not

Try it and see.

[Hall of Famer]

Alright I will give a try. I wonder if concatenation operator is needed for the img src code since there is already an assignment operator = here.

[requinix]

I am assuming it is impossible to write an expression to specify the width percentage?

"expressions" inside strings only work if you start with a $ (like with a variable). There are creative ways around this though:

$expr = function($value) { return $value; }; // or use create_function()
$string = "{$expr(100/4)}%";

[Hall of Famer]

Thank you so so much, I've got it to work already. Your help is much appreciated.