如何在switch语句中放置一个循环？ PHP [关闭]

Question

$stmt = "SELECT * FROM table";
$pUN  = $conn->query($stmt)->fetchAll();

$post = empty($_GET['post']) ? '' : $_GET['post'];
$paginas = empty($_GET['p']) ? 'home' : $_GET['p'];

if ($post != '' || ($post == '' && $paginas != '')) {
switch ($paginas):
    case " ":
        $titulo = " ";
        $shareTitulo = " ";

        $descricao = " ";
        $shareDescricao = " ";

        $shareImg = ' ';
        $keywords = ' ';

        $ogUrl = ' ';
        $urlCanonico = ' ';
        break;

    default:
        $titulo = '';
        $paginas = '';

endswitch;


switch ($post):

    case " ":
        $titulo = " ";
        $shareTitulo = " ";

        $descricao = " ";
        $shareDescricao = " ";

        $shareImg = ' ';
        $keywords = ' ';

        $ogUrl = ' ';
        $urlCanonico = ' ';
        break;

endswitch;

} else {
    $titulo = 'Notícia';
  }

我想在switch ($post) 中放置一个循环，switch ($post) 上的变量值将在我的数据库中。

如何在switch ($post) 中放置一个循环以从我的数据库中获取数据？我有一个名为“SwitchCase”的表，我将把变量的值放在这个表中。

编辑：

我必须写这么多 switch-case，所以我想简单地在我的表上写 case 中变量的值，我希望这个循环返回数据。

例子：

$stmtUN = "SELECT * FROM table";
$pUN    = $conn->query($stmtUN)->fetchAll();

switch ($post):

    foreach ($pUN as $UN): 

        case 'echo $UN["title"]':
            $titulo = 'echo $UN["title"]':
            $shareTitulo = 'echo $UN["title"]':

            $descricao = 'echo $UN["text"]':
            $shareDescricao = 'echo $UN["text"]':

            $shareImg = 'echo $UN["img"]':
            $keywords = 'echo $UN["keywords"]':

            $ogUrl = 'echo $UN["cnc"]':
            $urlCanonico = 'echo $UN["cnc"]':
        break;

    endforeach;

endswitch;

Answer 1

你把开关方块放错了地方。请参阅更正后的代码。还有没有理由将'echo'字符串作为变量的一部分？

$stmtUN = "SELECT * FROM table";
$pUN    = $conn->query($stmtUN)->fetchAll();

foreach ($pUN as $UN): 
   echo $UN["title"];

   switch ($post):

      case $UN["title"]:

        $titulo = 'echo $UN["title"]':
        $shareTitulo = 'echo $UN["title"]':

        $descricao = 'echo $UN["title"]':
        $shareDescricao = 'echo $UN["title"]':

        $shareImg = 'echo $UN["title"]':
        $keywords = 'echo $UN["title"]':

        $ogUrl = 'echo $UN["title"]':
        $urlCanonico = 'echo $UN["title"]':
        break;

   endswitch;

endforeach;