$push = $result; $push = json_decode($push, true); foreach ($push['rows'] as $item) { echo $item['ad_campaign_id'] . ','; } get only numbers values

$string = 'string';
$number = 4;

// Cast to number
$number = (int) $string;
echo $number; // 0

// Another way to get only numbers
$number = filter_var($string, FILTER_SANITIZE_NUMBER_INT);
echo $number; // 0

// Truncate to zero
$number = (int) $string;
echo $number; // 0

// Round to lower number
$number = round($string, 0);
echo $number; // 0

// Round to upper number
$number = ceil($string);
echo $number; // 1