Question

我需要阻止ID列显示在html / php中生成的foreach表中，但同时我还需要通过ID引用要编辑的数据。这是代码。

$queryz = "SELECT * FROM box WHERE date=CURDATE()";

    print "<table> ";
    $result = mysqli_query($db,$queryz);
    //return only the first row (we only need field names)
    $row = $result->fetch_assoc();  
    print " <tr> ";
    foreach ($row as $field => $value){
    print " <th>$field</th> ";
    } // end foreach
    print " </tr> ";
    //second query gets the data
    $data = $result;
    $data->fetch_assoc();
    foreach($data as $row){
    print " <tr> ";
    foreach ($row as $name=>$value){
    print " <td>$value</td> ";

    } // end field loop
    echo '<td><a href="edit.php?id=' . $row['ID'] . '">Edit</a></td>';
    echo '<td><a href="print.php?id=' . $row['ID'] . '">Print</a></td>';
    print " </tr> ";
    } // end record loop

我希望它抓取所有列，但不显示ID列。我仍然需要ID数据，因此我可以编辑表格：echo '<td><a href="edit.php?id=' . $row['ID'] . '">Edit</a></td>';

谢谢你们！我已经尝试过滤过于数组并排除SQL中的数据，但它不允许我之后编辑该表。我猜是因为它首先没有抓住数据。

Answer 1

在select语句中使用*不是一个好主意。您应列出要检索的字段（列）。如果您未在字段列表中包含ID，则问题将会消失。

变化：

$queryz = "SELECT * FROM box WHERE date=CURDATE()";

类似于：

$queryz = "SELECT field1, field2, etc. FROM box WHERE date=CURDATE()";

Answer 2

您可以通过简单地忽略其键为＆＃39; ID＆＃39;的数组项来解决当前问题，如下所示：

$queryz = "SELECT * FROM box WHERE date=CURDATE()";

print "<table> ";
$result = mysqli_query($db,$queryz);

//return only the first row (we only need field names)
$row = $result->fetch_assoc();  

print " <tr> ";
foreach ($row as $field => $value){
  if ( $field <> 'ID' ) {
    print " <th>$field</th> ";      
  }
} // end foreach
print " </tr> ";

//second query gets the data
$data = $result;
$data->fetch_assoc();

foreach($data as $row) {
  print " <tr> ";
  foreach ($row as $name=>$value){
    if ( $name <> 'ID' ) {
      print " <td>$value</td> ";
    }
  } // end field loop
  echo '<td><a href="edit.php?id=' . $row['ID'] . '">Edit</a></td>';
  echo '<td><a href="print.php?id=' . $row['ID'] . '">Print</a></td>';
  print " </tr> ";
} // end record loop

在不丢失数据的情况下排除foreach表中的列

2 个答案: