if (mysqli_num_rows($result) > 0)
{
$row = mysqli_fetch_array($result);
do
{
...
}
while ($row = mysqli_fetch_array($result));
}
while ($row = mysqli_fetch_array($result)) {
...
}
$data = $result->fetch_all(MYSQLI_ASSOC);
foreach ($data as $row) {
...
}
return is_numeric($str);