I want to count the number of values in one direction of a 2 and 3 day array.
Is

PHP Code:

count($po[x]) 


an exceptable form of $po[x][y]

PHP Code:

$a=0;
$b=0;
$i=0;
for($x=0;$x<=count($po[$x]);$x++){
 for($y=0;$y<=count($milestone[$x][$y]);$y++){
  $i++;
  echo'<tr class=d'.($i & 1).'>';
   if(empty($y)){ //prints PO details on first row
       echo'<td>'.$po[$x][$a++].'</td>'.        //PO number
        '<td>'.$po[$x][$a++].'</td>'.        //PO date
        '<td>'.number_format($po[$x][$a++], 2, '.', ',').'</td>'. //PO value
        '<td>'.$po[$x][$a++].'</td>';        //Currency
   }
   else{  //prints blank cells on duplicate row
        echo'<td></td>'.
         '<td></td>'.
         '<td></td>'.
         '<td></td>';
   }
   echo'<td>'.$milestone[$x][$y][$b++].'</td>'.        //Index
       '<td>'.$milestone[$x][$y][$b++].'</td>'.        //Description
    '<td>'.number_format($milestone[$x][$y][$b++], 2, '.', ',').'</td>'. //percentage
       '<td>'.number_format($milestone[$x][$y][$b++], 2, '.', ',').'</td>'. //value
       '<td>'.$milestone[$x][$y][$b++].'</td>'.        //Baseline
       '<td>'.$milestone[$x][$y][$b++].'</td>'.        //Estimate
       '<td>'.$milestone[$x][$y][$b++].'</td>'.        //Actual
        '</tr>';   
  $b=0;
 }
} 


I am getting the following errors and cannot see the the problem.

Total Project Value: 0.00Purchase OrderDateValueCurrencyMilestoneDescriptionPercentageValueBaselineEstimatedActual
Notice: Undefined variable: po in C:\Program Files\EasyPHP 3.0\www\My Websites\Fat Cat\display_commercial_details.php on line 95

Notice: Undefined variable: milestone in C:\Program Files\EasyPHP 3.0\www\My Websites\Fat Cat\display_commercial_details.php on line 96

Notice: Undefined variable: po in C:\Program Files\EasyPHP 3.0\www\My Websites\Fat Cat\display_commercial_details.php on line 100

3d array !!

You sure you need that depth?

Originally Posted by dgkindy

I am getting the following errors and cannot see the the problem.

You're getting those errors because the variables $po and $milestone are not getting initialized. As far as counting in a particular 'direction', assuming you visualize the array as a cube:

PHP Code:

$height = count($milestone);
$width = count($milestone[$x]);
$depth = count($milestone[$x][$y]); 


Keep in mind that the width is dependent on the row and the depth is dependent on the row and column.

Originally Posted by davidj

3d array !!

You sure you need that depth?

I've found it necessary a few times. I don't know exactly what the OP is doing so I can't comment on whether it is a good approach, but sometimes the situation calls for it.

I must admit I have done it before but now tend to re-evaluate my logic if I see one on the horizon. Up to now I have always found a more elegant solution.

Originally Posted by NullPointer

You're getting those errors because the variables $po and $milestone are not getting initialized...

Right-o.