Warning - how serious, how to eliminate
| From: | Bart Verbeek | Date: | Fri, 07 Sep 2001 10:36:19 +0000 |
| Subject: | Warning - how serious, how to eliminate | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-66372@lists.php.net to get a copy of this message | ||
Hello people,
I've got a question regarding the follwing scripts that gives an error.
When I execute the scripts below I get an warning-message:
- Warning: Division by zero in ./scripts/fasen_include.php on line 47...
This is the script I use.
When the vars are set the value has to be added to $totaal and $weight, when
not the var has to be skipped.
At the end of the scripts $totaal is devided by $weight to get an average
($percentage).
What can I do to eliminate the warning and is it serious?
Regards,
Bart
#BEGIN PHP-SCRIPTS
for (;;$fase[$i]) {
$weight[$i] = '';
$totaal[$i] = '';
if (isset($fase[$i][f_d1_perc]) && !empty($fase[$i][f_d1_perc])) {
if (isset($fase[$i][f_d1_weight]) && !empty($fase[$i][f_d1_weight])){
$weight[$i] += $fase[$i][f_d1_weight];
$totaal[$i] += ($fase[$i][f_d1_weight] * $fase[$i][f_d1_perc]);
}
}
if (isset($fase[$i][f_d2_perc]) && !empty($fase[$i][f_d2_perc])) {
if (isset($fase[$i][f_d2_weight]) && !empty($fase[$i][f_d2_weight])){
$weight[$i] += $fase[$i][f_d2_weight];
$totaal[$i] += ($fase[$i][f_d2_weight] * $fase[$i][f_d2_perc]);
}
}
if (isset($fase[$i][f_d3_perc]) && !empty($fase[$i][f_d3_perc])) {
if (isset($fase[$i][f_d3_weight]) && !empty($fase[$i][f_d3_weight])){
$weight[$i] += $fase[$i][f_d3_weight];
$totaal[$i] += ($fase[$i][f_d3_weight] * $fase[$i][f_d3_perc]);
}
}
if (isset($fase[$i][f_d4_perc]) && !empty($fase[$i][f_d4_perc])) {
if (isset($fase[$i][f_d4_weight]) && !empty($fase[$i][f_d4_weight])){
$weight[$i] += $fase[$i][f_d4_weight];
$totaal[$i] += ($fase[$i][f_d4_weight] * $fase[$i][f_d4_perc]);
}
}
if (isset($fase[$i][f_d5_perc]) && !empty($fase[$i][f_d5_perc])) {
if (isset($fase[$i][f_d5_weight]) && !empty($fase[$i][f_d5_weight])){
$weight[$i] += $fase[$i][f_d5_weight];
$totaal[$i] += ($fase[$i][f_d5_weight] * $fase[$i][f_d5_perc]);
}
}
$percentage[$i] = $totaal[$i] / $weight[$i];
$percentage[$i] = number_format($percentage[$i],1, ',', ' ');
#END PHP-SCRIPTS