select query from mysql_num_rows

Question

i want create multiple search where statement $where_search is a multiple condition from post form. but stil error when iam using this code ".where_search." in where condition with mysql_num_rows for paging

$tampil2 = mysql_query("SELECT * FROM bb where ".$where_search."  and kd_kelompok='2' and kd_komoditi='11' and nm_sebutan IS NOT NULL " );

this is the complete code.

$where_search = "kd_pok='2' and kd_komoditi='11' ";

if (isset($_POST['lakpus']))
{

    if (empty($_POST['lakpus']))
    {

    }
    else
    {

        if (empty($where_search))
        {
             $where_search .= "lakpus = '$lakpus' ";
        }
        else
        {

             $where_search .= "AND lakpus = '$lakpus' ";

        }
    }
} 

if (isset($_POST['kd_por']))
{
    $kd_por = $_POST['kd_por'] ;

    if (empty($_POST['kd_por']))
    {

    }
    else
    {

        if (empty($where_search))
        {
            $where_search .= "kd_por = '$kd_por' ";

        } 
        else
        {

            $where_search .= "AND tab1.kd_por = '$kd_por' ";

        }
    }
} 

$max=15;
$tampil2 = mysql_query("SELECT * FROM bb where ".$where_search."  and kd_kelompok='2' and kd_komoditi='11' and nm_sebutan IS NOT NULL " );
$jml = mysql_num_rows($tampil2);
$jmlhal  = ceil($jml/$max);

Answer 1

Maybe your error is here:

$where_search .= "AND tab1.kd_por = '$kd_por' ";

Because you didn't declare the "tab1". Try change to this:

$where_search .= "AND kd_por = '$kd_por' ";

EDIT 1

You didn't recovery the var $lakpus from $_POST befofe use it. Here is part of the code that you have to update.

...

else
{

    $lakpus = $_POST['lakpus'];

    if (empty($where_search))
    {
        $where_search .= "lakpus = '$lakpus' ";
    }

    ...

EDIT 2

As i said in the comments, try to call mysql_num_rows() after mysql_query(), like below.

$qry = "SELECT * FROM bb where ".$where_search; 

$res = mysql_query($qry); 

$num = mysql_num_rows($res);

$row = mysql_fetch_array($res);