Come mostrare i dati dal database con l'estensione dinamica delle righe

Prima di tutto scusa per il mio povero inglese.

Nella tua query, invece di eseguire l'ordine per id_location , esegui ordina per nome componente . In questo modo puoi aggiungere facilmente un intervallo di righe dinamico. Non ho cambiato il tuo programma di connessione, ma ho cambiato la tua seconda parte. Si prega di controllare. So che ci sono da 3 a 4 loop. Ma se qualcuno ha trovato un algoritmo migliore per favore dimmelo.

    $sql1 = "SELECT * FROM Lokasi ORDER BY id_location";
    $stmt1 = $dbc->prepare($sql1);
    $stmt1->execute();

    while ($row1 = $stmt1->fetch(PDO::FETCH_ASSOC)) {
    $location++;
    echo "Location $location : ".$row1['location'];

?>



<?php
    $query = "SELECT * 
                FROM sub_component,
                     component 
               WHERE sub_component.id_component=component.id_component 
                 AND component.id_location='$data[id_location]' 
            ORDER BY component.component_name";
    $stmt = $dbc->prepare($query);
    $stmt->execute();

    # Declare two emty array
    $component     = array(); # Will store the components
    $sub_component = array(); # Will store the sub components

    $loop = 0;

    # Now if any data is fetched from previsous query, then fill
    # the above declared arrays.
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {

        $component[$loop]     = $row['component'];
        $sub_component[$loop] = $row['sub_component'];

        $loop = $loop + 1;
    }

    # If no data fetched then I m telling 
    # No data fetched.
    if (!sizeof($component)) {
        echo 'Empty Data';
    } else {

        print "<table width='469px' border='1'>
                    <tr bgcolor='#00FFFF'>
                        <th width='109' class='rounded' scope='col'>Component</th>
                        <th width='109' class='rounded' scope='col'>Sub Component</th>
                    </tr>";

        # Now our main logic starts to print dynamic rowspan

        # Go for a loop.
        # Here the imporant is to use for loop

        $tmp_arr = array();

        $main_assoc_arr = array();

        for ($i = 0; $i < sizeof($sub_component); $i++) {

            array_push($tmp_arr, $sub_component[$i]);

            # If we have reached the last element
            # and in $main_assoc_arr the comonent is not exist
            # Then we will store them as following.
            if (   $i = (sizeof($sub_component)-1)
                && !array_key_exists($component[$i], $main_assoc_arr)) {

                $main_assoc_arr[ $component[$i] ] = array();
                $main_assoc_arr[ $component[$i] ] = $tmp_arr;

                # Restore the array.
                $tmp_arr = array();

                # Also get out of the loop
                break;
            }

            # If the present component is not equal to the 
            # Next component then 
            if ($component[$i] != $component[$i+1]) {

                $main_assoc_arr[ $component[$i] ] = array();
                $main_assoc_arr[ $component[$i] ] = $tmp_arr;

                # Restore the array.
                $tmp_arr = array();
            }
        }

        # Now we are going to print the table with rowspan.
        foreach ($main_assoc_arr as $comp=>$sub_comp) {

            $printed = 0;
            $rowspan = sizeof($sub_comp);

            foreach ($sub_comp as $elm) {

                print "<tr>";

                # Manke sure that the column will not print
                # in each loop as it conatins dynamic array.
                if (!$printed) {

                    print "<td rowspan='$rowspan'>$comp</td>";
                }

                print "<td>$elm</td>"
                print "</tr>";
            }
        }

        print "</table>";

    }
?>