用查詢刪除行不起作用

Question

我發現了一種從表中刪除行的方法「dynamic」，將每個要刪除的按鈕的id關聯起來，這個id是從表中取出的。 關聯與每個按鈕下面這行代碼：

"<td><form method='post' action='#'><a href=\"".$_SERVER['PHP_SELF']."?id=".$attivitaID."\" onClick=\"javascript:return confirm('Sei sicuro di voler cancellare questo prodotto?')\"><input type='button' value='Elimina' name='delete' id='back'></a></form></td>"; 

然後運行一個檢查，看是否被按下它：

if(isset($_POST['delete'])&& isset($_GET['id'])) 
{ 
    $connessione = new MySQLi(HOST, USER, PASSWORD, DATABASE); 

    $query = "DELETE FROM workpaper WHERE id = ?"; 

    $result = mysql_query($query); 

    if (!$result) 
    { 
     die("Errore nella query $query: " . mysql_error()); 
    } 

    mysql_close(); 

    } 

，但重新加載頁面，而無需進行任何查詢，怎麼了？

Answer 1

您的查詢尋找，似乎是什麼東西：

$query = "DELETE FROM workpaper WHERE id = ?"; 

也許你應該添加$_GET['id']作爲價值的條款。

Answer 2

變化：

$query = "DELETE FROM workpaper WHERE id = ?"; 

有：

$query = "DELETE FROM workpaper WHERE id = ".$_POST['id']; 


"<td><form method='post' action='".$_SERVER['PHP_SELF']."'><input type='hidden' name='id' value='".$attivitaID."\" /><input type='button' value='Elimina' name='delete' id='back'></form></td>";