PHP - Get number of items in array - php

Question

OK, so I got a while loop, in which I loop through different users:
$before = $data['autorenew_before'];
$refs=$dbh->prepare("SELECT * FROM users WHERE user_by=:userby AND expire <= unix_timestamp(CURRENT_TIMESTAMP + INTERVAL :before day)");
#$refs->bindParam(":userby",$data['username']);
$refs->bindParam(":userby",$userdata['username']);
$refs->bindParam(":before",$before);
$refs->execute();
I then loop through the above query:
while($refsData=$refs->fetch()){
$ids = "".$refsData['id'].",";
$explode = explode(",",$ids);
$outcome = _paying(number_format(getPriceList($data['rented_referrals']),2), 30, $data['username'], $explode);
}
This is the _paying function:
function _paying($ceny, $dni, $username, $referrals_array){
//$ceny = 0.20
//Count referrals_array doesn't return anything.
$koszyk = $ceny * count($referrals_array);
return $koszyk;
}
The above function doesn't work, as the count($referrals_array) is not working.
Edit - 1:
print_r($explode); gives me:
Array
(
[0] => 40231
[1] =>
)
Array
(
[0] => 40232
[1] =>
)
Array
(
[0] => 40233
[1] =>
)
Array
(
[0] => 40234
[1] =>
)
Array
(
[0] => 40235
[1] =>
)
Array
(
[0] => 55847
[1] =>
)
Array
(
[0] => 55848
[1] =>
)
Array
(
[0] => 90322
[1] =>
)
Array
(
[0] => 90323
[1] =>
)
Array
(
[0] => 90324
[1] =>
)
Array
(
[0] => 90325
[1] =>
)
Array
(
[0] => 90326
[1] =>
)
What am I doing wrong?

Answer 1

Have you checked the content of $explode yet?
Try a print_r($explode); before calling _paying() to make sure, there is data.