[SOLVED] Always returning zero?

[9three]

Hey,

 

  $x = $goldMatch[0][1];
  $y = $percent;
  $total = ($x * $y) / 2;
  echo $total;

 

x has stored 968.00

y is determined by the user's input right now being .15 (or 15%)

 

I need to mutiply that and then divide.

 

It always gives me zero. I did:

 

$total = ($x * 2);

echo $total;

 

And it gave me zero as well

[Maq]

I did this, and it echoed "72.6".

 

$x = 968.00;
$y = .15;
$total = ($x * $y) / 2;
echo $total;
?>

 

It's probably because 'y' should be '$y'.  If that's not the case, then your variables aren't holding what you said they were, try echoing them out individually to ensure they have correct values.

[9three]

yes it was a typo here. I did try to echo them out individual and they are storing properly.

 

echo of x:

968.000

 

echo of y:

.150

 

echo of $total:

0

[allworknoplay]

yes it was a typo here. I did try to echo them out individual and they are storing properly.

 

Well ok, what do you have them stored at?

[premiso]

  $total = (($x * $y) / 2);

 

For number operations, I tend to always encapsulate it in parans like above to avoid weird results that may come of it.

 

[9three]

  $gold = file_get_contents('http://www.site.com/');
  preg_match_all('~<td class="td" align="Right">(.+?)</td>~is', $gold, $goldMatch);

 

The value between the td element has '968.00'

 

Still zero when I added the extra ()

[Maq]

If you don't mind, could you post all the relevant code...?

[9three]

I think I found the problem. I'm storing the TD element with the integers so maybe thats why it's not working.

[allworknoplay]

I think I found the problem. I'm storing the TD element with the integers so maybe thats why it's not working.

 

That's why I wanted to know what data type you were storing them as.

[Maq]

I think I found the problem. I'm storing the TD element with the integers so maybe thats why it's not working.

 

That's why I wanted to know what data type you were storing them as.

 

This isn't Java or C++, this is PHP...  It's so loosely typed it doesn't matter as long as the data has real numbers.

[9three]

I'm trying to remove it but it's not replacing the string instead it's just echoing it out like normal:

 

  preg_match_all('~<td class="td" align="Right">(.+?)</td>~is', $gold, $goldMatch);
  echo str_replace('<td class="td" align="Right">(.+?)</td>', '(.+?)', $goldMatch[0][1]);

 

The output is:

 

<td class="td" align="Right">968.00</td>

 

It should just put 968.00

 

Well if that's not it, then I'm not sure what it could be.

[Maq]

yes it was a typo here. I did try to echo them out individual and they are storing properly.

 

echo of x:

968.000

 

echo of y:

.150

 

echo of $total:

0

 

I thought you said they were echoing correctly...?  You may want to ask this in the Regex section, since this is what your thread has become.

[9three]

well they do output correctly. if you view the source though, it has HTML. though i dont know if that matters? its the only thing i can think of, of why is not working right.

 

I got it:

 

<?php

function gold()
{
  $gold = file_get_contents('http://www.site.com/');
  preg_match_all('~<td class="td" align="Right">(.+?)</td>~is', $gold, $goldMatch);
  
  $x = str_replace('<td class="td" align="Right">', '', $goldMatch[0][1]);
  $y = .15;
  $total = (($x * $y) / .20);
  echo $total;
}

gold();
?>
?>

 

Looks like PHP can't render integers if there is HTML before the integers that are needed. Anything after the integer doesnt matter.

[Philip]

I'm trying to remove it but it's not replacing the string instead it's just echoing it out like normal:

 

  preg_match_all('~<td class="td" align="Right">(.+?)</td>~is', $gold, $goldMatch);
  echo str_replace('<td class="td" align="Right">(.+?)</td>', '(.+?)', $goldMatch[0][1]);

 

The output is:

 

<td class="td" align="Right">968.00</td>

 

It should just put 968.00

 

Well if that's not it, then I'm not sure what it could be.

<?php
$gold = '<td class="td" align="Right">968.00</td>';
preg_match_all('~<td class="td" align="Right">(.+?)</td>~is', $gold, $goldMatch);
echo str_replace('<td class="td" align="Right">(.+?)</td>', '(.+?)', $goldMatch[0][0]);
?>

Outputs 968.00