merge-table2.php

<?php
// db output
$data = array(
    array(
        'no' =>0,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
    array(
        'no' =>1,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
    array(
        'no' =>2,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
    array(
        'no' =>3,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
    array(
        'no' =>4,
        'jur' => 'mundur',
        'kel' => 'ada',
    ),
    array(
        'no' =>5,
        'jur' => 'naik',
        'kel' => 'ada',
    ),
    array(
        'no' =>6,
        'jur' => 'naik',
        'kel' => 'ada',
    ),
    array(
        'no' =>7,
        'jur' => 'turun',
        'kel' => 'ada',
    ),
    array(
        'no' =>8,
        'jur' => 'turun',
        'kel' => 'ada',
    ),
    array(
        'no' =>9,
        'jur' => 'turun',
        'kel' => 'ada',
    ),
    array(
        'no' =>10,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
    array(
        'no' =>11,
        'jur' => 'maju',
        'kel' => 'ada',
    ),
);
// array merge
foreach($data as $i=>$m){
    $arrdata[$i] = $m['jur']; // data yg di-merge (all)
    $arritem[$m['jur']] = $m['jur']; // data yg di-merge (unique)
}

$str = implode(',', $arrdata); // data all dibuat jadi string
// data yg sama di-replace koma jd strip agar ter-grouping
foreach($arritem as $replaceKata){
    // setiap data unik diubah pemisah string jd strip
    foreach($arritem as $m) $str = str_replace("$replaceKata,$replaceKata", "$replaceKata-$replaceKata", $str);
}

// pecah ulang by koma untuk mengambil grouping
$n = 0;
$rowspan = array();
$arr = explode(',', $str);
foreach($arr as $txt){
    // satu grup dipecah lagi by strip untuk mengambil ada brp data
    $et = explode('-', $txt);
    // buat array dgn format => $arr[rowKe] = jmlRowspan
    $rowspan[$n] = count($et);
    $n += count($et); // counter inisiator jumlah data (row)
}

//echo '<pre>';print_r($rowspan);echo'</pre>';

echo '<table border=1><tr><th>no</th><th>jur</th><th>kel</th></tr>',"\n";
foreach($data as $i=>$row){
    echo '<tr>',"\n";
    echo '  <td>',$row['no'],'</td>',"\n";
    if($rowspan[$i]){
        if($rowspan[$i]>1)
            echo '  <td rowspan=',$rowspan[$i],'>',$row['jur'],'</td>',"\n";
        else
            echo '  <td>',$row['jur'],'</td>',"\n";
    }
    echo '  <td>',$row['kel'],'</td>',"\n";
    echo '</tr>',"\n";
    $jur = $row['jur'];
}
echo '</table>';