Not showing total rows from table PHP MySQL

Question

I want to show all the rows in the table and get the title and search the title in another table. If I echo the total number(816) of rows it's correctly showing. But if add the below code Its showing only(414) results from the table.

    $viewss1=$con->query("SELECT COUNT(reference_id) FROM reference WHERE 
    reference LIKE '%$paper_title%'");
    $cview1=$viewss1->fetch_row();
    $countt1=$cview1[0];

If I add it showing half results. Why was that?. I don't know why. MY full code attached below. Thank you.

$sql="SELECT * FROM table";
$result=$con->query($sql);
$record=array();
if($result)
{
    if($result->num_rows)
    {
        while($row=$result->fetch_object())
        {
            $record[]=$row;
        }
    }
}
foreach($record as $r)
{
    $paper_title=$r->paper_title;
    echo $paper_title;
    // If i add the below code it shows half results.
    $viewss1=$con->query("SELECT COUNT(reference_id) FROM reference WHERE 
    reference LIKE '%$paper_title%'");

    $cview1=$viewss1->fetch_row();
    $countt1=$cview1[0]; 

    echo "<br>";
    echo $r->upload_paper_id; 
    echo $countt1;
    echo "<br>"; 

} 

Answer 1

最后我得到了答案。如果任何行有空值，它将停止循环。所以最好检查是否为空。