CODEWITHSUNDEEP
phploopswhile-loopdo-while
Darth2rk
Darth2rk

Reputation: 21

Summing all values in PHP while loop

Pretty newbie question :/

I have an API that returns values, I just want to get the number of elements in XML but its limited to 30 per query.

function SOMEfunction($number){
   $curl = curl_init("*URL*?format=xml&page=" . $number);
   $result = curl_exec($curl);
   $xml = simplexml_load_string($result);
   $ttn = $xml->count();
   echo "$ttn<br>";
}

so, Since I just want to get the number of elements in XML, i run a short while loop, which i want to sum somehow.

$sum=0;
$num=1;
while ($num < 7)
{
   $sum += SOMEfunction($num);
   $num++;
}
echo $sum;

the current out put is:

30
30
30
30
2
0
0

How can i sum them up?

Thanks.

Upvotes: 2

Views: 102

Answers (2)

SaidbakR
SaidbakR

Reputation: 13534

SOMEfunction should return a value, not print it, as follows:

function SOMEfunction($number){
   $curl = curl_init("*URL*?format=xml&page=" . $number);
   $result = curl_exec($curl);
   $xml = simplexml_load_string($result);
   $ttn = $xml->count();
   return $ttn;
}

Upvotes: 3

Maximus2012
Maximus2012

Reputation: 1819

Try this:

$sum=0;
$num = 1; 
do { 
 $sum += SOMEfunction($num);
 $num++;
} while ( $num > 0 && $num < 7 ); 

echo $sum;

This assumes that the rest of your code including SOMEfunction is working fine. You can also possibly re-factor the while loop but I am not entirely sure about that.

Another way to do this:

$sum=0;
$num=1;
while ($num < 7)
{
   $sum += SOMEfunction($num);
   $num++;
}
echo $sum;

Try this and see if it works. If not then I am not sure if your SOMEfunction is working correctly.

Upvotes: 0

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