Question

当我刷新页面或按页面底部的链接移动到下一页或上一页时，我想保留$orderby和$orderSort（在查询中）。

我已尝试将orderby和orderSort附加到会话但由于查询而无效 - 它总是从else语句恢复为Name和ASC，这似乎是{的一个问题{1}}但是我试过没有它也会出现同样的问题。

当我转到下一页或上一页时，如何保留我的查询（只要选择没有更改）？

热门PHP部分：

isset($_POST['submit'])

提交表格：

//Next Page 
if (!isset($_GET['startrow']) or !is_numeric($_GET['startrow'])) {
 $startrow = 0;
} else {
$startrow = (int)$_GET['startrow'];
}
//when options are selected/submitted
if(isset($_POST['submit'])) 
    {
        if($_POST['select'] == "EventType")
        {
            $orderby = $_POST['select'];
            if($_POST['otherType'] != "Select an Event") {
            $EventType = 'WHERE `' . $orderby . '`="' . $_POST["otherType"] . '"';
            }
        } 
        else
        {
            $orderby = $_POST['select'];
        }
        $orderSort = $_POST['agree'];
    }
else
{
    $orderby = "Name";
    $orderSort = "ASC";
}

if ($stmt = $local->prepare("SELECT * FROM importdata $EventType ORDER BY `$orderby` $orderSort LIMIT     ?,10")) {
$stmt->bind_param('i', $startrow);
$stmt->execute();
$Recordset1 = $stmt->get_result();
$row_Recordset1 = $Recordset1->fetch_assoc();
$stmt->close();
}

<form id="form1" name="form1" method="post" enctype="multipart/form-data">
  <label for="select">Order By:</label>
  <select name="select" id="selectType">
    <option value="EventType">Event</option>
    <option value=" Name"selected="selected">Race Name</option>
  </select> 
      <label><input type="radio" name="agree" value="ASC" checked>Ascend</label> 
    <label><input type="radio" name="agree" value="DESC">Descend</label>

      <input type="submit" name="submit" value="Submit">
</form>

Answer 1

您必须将参数（orderBy等）写入每个链接，因为HTTP是无状态协议。这非常繁琐，所以我建议寻找一个适合你的框架。

会话也应该起作用，对于一个简单的应用程序，它可能是一个更容易的灵魂。你究竟是如何存储会话变量的？

Answer 2

我建议这样的事情：

// Get our defaults for these variables.
$orderBy = isset($_SESSION['orderBy']) ? $_SESSION['orderBy'] : 'Name';
$orderSort = isset($_SESSION['orderSort']) ? $_SESSION['orderSort'] : 'ASC';

// When options are selected/submitted
if (isset($_POST['submit'])) {
    if ($_POST['select'] == "EventType") {
        $orderby = $_POST['select'];

        if ($_POST['otherType'] != "Select an Event") {
            $EventType = 'WHERE `' . $orderby . '`="' . $_POST["otherType"] . '"';
        }
    } else {
        $orderby = $_POST['select'];
    }

    $orderSort = $_POST['agree'];

    // Set our session variables for next time when we set our defaults.
    $_SESSION['orderBy'] = $orderBy;
    $_SESSION['orderSort'] = $orderSort;
}

通过刷新保留提交的数据

2 个答案: