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[newphpcoder]

What is the explanation or meaning of this code:

$totalarr = count($opname) - 1;

and

$totalrows = mysql_num_rows($result);

        $trows = $totalrows - 1;

Thank you

[Alexander]

If you are going through a loop, all arrays start and index zero not one. Therefor we need to subtract one from the count to work in the loop, for example:

$names =  array('John', 'Cassy', 'Sven');
$ncount = count($names) - 1;
for($i = 0; $i <= $ncount; $i++) {
    print $names[$i];
}

as you see, $i will be zero instead of one (to access the first key in the array) and end at $names[2] instead of $names[3] which does not exist.