Question

<?
    // Connect database
    include("cat-config.php");

    // Get all records in all columns from table and put it in $result.
    $result=mysql_query("

    (select * from stok_lukisan where `Ukuran` LIKE '20x25' AND `Kategori` LIKE '1' ORDER BY `Kode` ASC limit 3)
    union all
    (select * from stok_lukisan where `Ukuran` LIKE '30x40' AND `Kategori` LIKE '1' ORDER BY `Kode` ASC limit 4)
    union all
    (select * from stok_lukisan where `Ukuran` LIKE '20x50' AND `Kategori` LIKE '1' ORDER BY `Kode` ASC limit 5)
    ");

    /*Split records in $result by table rows and put them in $row.
    Make it looping by while statement. */
    while($row=mysql_fetch_assoc($result)){

    echo '<table><tr>';
      echo "<td align='center'>$row[Kode]<br><a href='$GAMBAR_URL/$row[Gambar]' rel='lightbox' title='Kode Lukisan: $row[Kode]'><img src='$GAMBAR_URL/$row[Gambar]'><br>

      Rp.$row[Harga]<a href=\"javascript:;\" onclick=\"simpleCart.add('name=$row[Kode]', 'price=$row[Harga]','size=tiny','quantity=1','thumb=$GAMBAR_URL/$row[Gambar]');\"><br><img src='./images/buy.gif'><p></a>";

    $rows = 1;
    while ($row = mysql_fetch_assoc($result)) {
      echo "<td align='center'>$row[Kode]<br><a href='$GAMBAR_URL/$row[Gambar]' rel='lightbox' title='Kode Lukisan: $row[Kode]'><img src='$GAMBAR_URL/$row[Gambar]'></a><br>

     Rp.$row[Harga]<a href=\"javascript:;\" onclick=\"simpleCart.add('name=$row[Kode]', 'price=$row[Harga]','size=tiny','quantity=1','thumb=$GAMBAR_URL/$row[Gambar]');\"><br><img src='./images/buy.gif'><p></a>";

      ++$rows;
      if ($rows %4 == 0) {
       echo '</tr><tr></tr>

    </table></tr><tr><table><tr>';
      }
    }
    }
    ?>

如何根据已在union all中设置的限制在页面上显示每一行php循环。

在php页面上的结果如下：

1001 - 1002 - 1003 (<---- 3 record on rows)
2001 - 2002 - 2003 - 2004 (<---- 4 record on rows)
3001 - 3002 - 3003 - 3004 - 3005 (<---- 5 record on rows)

感谢....

Answer 1

您可以使用简单的计数器来跟踪已提取的行：

$limits = array(3, 4, 5);
reset($limits);
$counter = 0;
while ($row = mysql_fetch_array($result)) {
    var_dump($row);
    $counter++;
    if ($counter === current($limits)) {
        echo current($limits);
        next($limits);
        $counter = 0;
    }
}

这里current用于获取内部数组指针指向的当前值。因此，如果当前限制等于已获取的行数，则打印限制，指针前进（请参阅next）并将计数器重置为0.

Answer 2

我认为可以简化查询以简化PHP：

SELECT
   GROUP_CONCAT(name SEPARATOR ' - ') names,
FROM
   stock
WHERE
   category
   AND size IN (25, 30, 45)
GROUP BY
   size

这将为您提供格式化的PHP数据，就像您希望它在PHP中一样。你可以打印每一行。

Answer 3

$sql = "( select *, 3 AS limit 
    from stock 
   where `size` LIKE '25' 
     AND `category` LIKE '1' 
ORDER BY `code` ASC 
    limit 3)
union all
( select *, 4 AS limit
    from stock 
   where `size` LIKE '30' 
     AND `category` LIKE '1' 
ORDER BY `code` ASC 
   limit 4)
union all
( select *, 5 AS limit
    from stock 
   where `size` LIKE '45' 
     AND `category` LIKE '1' 
ORDER BY `code` ASC 
   limit 5)";
$res = mysql_query($sql);
while ($r = mysql_fetch_object($res)) {
  // assuming each record has a unique id
  $data[$r->limit][$r->id] = $r->name;
}

foreach ($data as $limit => $names) {
  echo implode(' - ',$names);
}

PHP：显示与所有联合限制相同的行值

3 个答案: