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array numbers

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Join Date: Mar 2009

Posts: 2

Reputation: tominic is an unknown quantity at this point

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tominic

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Newbie Poster

array numbers

Mar 15th, 2009

So I've created an array based on posted information (a big list of numbers separated by lines which has then been exploded)
So this array may contain numbers from 0-100

or whatever

So I have one array of numbers

Now for each number I want to find out many numbers are BELOW it in the entire array

So what I do is use foreach twice.

 Help with Code Tags 
 PHP Syntax (Toggle Plain Text) 
<?php
foreach($myarray as $n => $v) {
     $total="";
     foreach($myarray as $name => $value) {
          if($value<$v) {
              $total=$total+1;
          }
     }
echo $total;
}
?>
<?php
foreach($myarray as $n => $v) {
     $total="";
     foreach($myarray as $name => $value) {
          if($value<$v) {
              $total=$total+1;
          }
     }
echo $total;
}
?>

Right.
I know what the problem is but I don't know how to fix it!

When I use $value<$v, it gives the wrong total.

What it does, say $value = 20, and $v = 4, it thinks 20 is smaller than 4 - it's not a clever number. Say $v was 1, it would think it was smaller. It doesn't take the whole number into consideration.

It only doesn't work when $v is given as a variable, and not a static number.

if I did this...

 Help with Code Tags 
 php Syntax (Toggle Plain Text) 
<?php
     foreach($myarray as $name => $value) {
          if($value<4) {
              $total=$total+1;
          }
     }
echo $total;
?>
<?php
     foreach($myarray as $name => $value) {
          if($value<4) {
              $total=$total+1;
          }
     }
echo $total;
?>

It would work.

I'm not sure how well I've explained this but, yeah. Any ideas? Cheers!

Last edited by tominic; Mar 15th, 2009 at 6:18 pm.

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Join Date: Mar 2009

Posts: 2

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tominic

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Newbie Poster

Re: array numbers

Mar 15th, 2009

Fixed it

I had to user number_format() on the numbers

!!!

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Join Date: Apr 2008

Posts: 28

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vinothkumarc vinothkumarc is offline

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Light Poster

Re: array numbers

Mar 16th, 2009

not clear... but intresting to reply..

 Help with Code Tags 
 PHP Syntax (Toggle Plain Text) 
 <?php
$arr = array(11,25,3,47,775,96,70,82,29,10);
$outputArr  = Array();
foreach($arr as $key => $value) {
  $count++;
  $outputArr[$value] = count($arr)-$count;   
}
echo "<pre>";
print_r($outputArr);
?>
 <?php
$arr = array(11,25,3,47,775,96,70,82,29,10);
$outputArr  = Array();
foreach($arr as $key => $value) {
  $count++;
  $outputArr[$value] = count($arr)-$count;   
}
echo "<pre>";
print_r($outputArr);
?>

.. try this printed o/p... if its not satisfying u.. pls explain d probs... with example