Undef Offset

monger

I initially posted this query, but haven't yet figured the exact issue out. I do, however, have a bit more understanding of what is going on, so I will plead my case over.

Here's the chunk of script:

     83 require ("$reportfile");
     84 
     85 // First find the maximum value of $p,
     86 // and count the rows.
     87 $cnt="0";
     88 $s = "0";
     89 $fp=fopen($reportfile,'r');
     90 while ( !feof($fp) ) {
     91         list($d,$p,$count)=split("\t",fgets($fp,1000));
     92         if ($p > $s) { $s = $p; }
     93         $cnt += 1;
     94 }
     95 rewind($fp);

The issue is at line 91 - I get the following undefined offset:

PHP Notice: Undefined offset: 2 in /home/dshield/bin/tinyplot.php on line 91
PHP Notice: Undefined offset: 1 in /home/dshield/bin/tinyplot.php on line 91
The contents of the file, $reportfile, is this:

2004-11-17 48.66 4867
2004-11-14 24.12 62

Column 1 is a date, obviously;
Column 2 is a percentage and
Colum 3 is a count.

It looks like line 91 is going to split each line into three elements, $d, $p, $count, delimited by a tab. All three columns have a value.

So, what is the undefined offset? I thought I was starting to understand it, but now I'm not sure. Since all three columns have a value, I don't know what to look at.

Thanks,
monger

devinemke

$file = file($reportfile);
foreach ($file as $key => $value)
{
	$line = $key + 1;
	$explode = explode("\t", trim($value));
	$percentages[$line] = $explode[1];
}

arsort($percentages);

echo 'there are ' . count($file) . ' lines in the file<br>';
echo 'the maximum percentage is ' . reset($percentages) . ' on line #' . reset(array_keys($percentages));