add the values of an array

[Anon]

I've been having a bad time try to accomplish this.

<? // get sub total
$gtotal = explode(" ","$total");
// $total being a variable containing a list
// of values
}
reset ($gtotal);
while (list(, $s_total) = each ($gtotal)) {
$sum += $s_total;
}
echo $sum;
?>

// so $total has
// 53
// 301
// only echoing 301
// need to add 53 and 301 and what ever
// values that variable holds.

I would apperciate any help on this
TIA
Richie TM

TIA
Richie TM

[polson]

Are you sure $gtotal is being created properly? Do this :

print_r($gtotal);

Does it contain both 53 and 301? I have a feeling the explode isn't exploding as expected. This WILL work :

<?php

$total = '53 301';

$gtotal = explode(' ',$total);

reset ($gtotal);
while (list(, $s_total) = each ($gtotal)) {
$sum += $s_total;
}
echo $sum; // 354

?>

[greggory]

Both solutions work with my version of php4.
I think the problem is with php3 and + operator on strings.

A solution is casting $s_total to (int)
to force 'int+' rather than 'string+'.

Instead of
$sum += $s_total;

Use
settype( $sum, 'integer' );

Then
$sum += (int)$s_total;

Kood Elp ??