Question

我的问题是如何将这些会话变量放入数组中？我尝试了无数种方法，但没有一种方法可行不确定要放入阵列中的内容以及没有和如何添加它们的内容目前，当我填写表格时，数据会显示在表格中。

接下来，当我按下将我带回同一表格的超链接时，我希望再次输入数据应将此数据添加到同一显示表中的新行中。

最诚挚的问候。

下面的代码（原谅我不是英文）。

<?php
session_start();
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0            Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-Strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
<title>ExpoFormulier</title>

<body>

<?php
if (!empty($_POST))
{
$standnaam = $_POST["standnaam"];
$oppervlakte = $_POST["oppervlakte"];
//value in the form van checkboxes op 1 zetten!
$verdieping = isset($_POST["verdieping"]) ? $_POST["verdieping"] : 0;  
$telefoon = isset($_POST["telefoon"]) ? $_POST["telefoon"] : 0;  
$netwerk = isset($_POST["netwerk"]) ? $_POST["netwerk"] : 0; 


if (is_numeric($oppervlakte)) 
{
    $_SESSION["standnaam"]=$standnaam;
    $_SESSION["oppervlakte"]=$oppervlakte;
    $_SESSION["verdieping"]=$verdieping;
    $_SESSION["telefoon"]=$telefoon;
    $_SESSION["netwerk"]=$netwerk;
    header("Location:ExpoOverzicht.php"); 
}
else 
{
    echo "<h1>Foute gegevens, Opnieuw invullen a.u.b</h1>";
}  
}

?>

<form action="<?php echo $_SERVER["PHP_SELF"]; ?>" method="post" id="form1">
<h1>Vul de gegevens in</h1>
<table>
    <tr>
        <td>Standnaam:</td>
        <td><input type="text" name="standnaam" size="18"/></td>
    </tr>
    <tr>
        <td>Oppervlakte (in m^2):</td>
        <td><input type="text" name="oppervlakte" size="6"/></td>
    </tr>
    <tr>
        <td>Verdieping:</td>
        <td><input type="checkbox" name="verdieping" value="1"/></td>
    </tr>
    <tr>
        <td>Telefoon:</td>
        <td><input type="checkbox" name="telefoon" value="1"/></td>
    </tr>
    <tr>
        <td>Netwerk:</td>
        <td><input type="checkbox" name="netwerk" value="1"/></td>
    </tr>
    <tr>
        <td><input type="submit" name="verzenden" value="Verzenden"/></td>
    </tr>
</table>

</form>

第二档：

<?php
session_start();
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-Strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <title>ExpoOverzicht</title>
 <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <link href="StyleSheetExpo.css" rel="stylesheet" type="text/css" />  
</head>

<body>

<h1>Overzicht van de ingegeven standen in deze sessie</h1>

<?php

$standnaam = $_SESSION["standnaam"];
$oppervlakte = $_SESSION["oppervlakte"];
$verdieping = $_SESSION["verdieping"];
$telefoon = $_SESSION["telefoon"];
$netwerk = $_SESSION["netwerk"];

$result1 = 0; 
$result2 = 0;
$result3 = 0;
$prijsCom = 0;
$prijsVerdieping = 0;

for ($i=1; $i <= $oppervlakte; $i++)
{   
    if($i <= 10)
    {
       $tarief1 = 1 * 100;
       $result1 += $tarief1;
    }

    if($i > 10 && $i <= 30)
    {
        $tarief2 = 1 * 90;
        $result2 += $tarief2;      
    }

    if($i > 30)
    {
        $tarief3 = 1 * 80;
        $result3 += $tarief3;
    }  
}
$prijsOpp = $result1 + $result2 + $result3;


if($verdieping == 1)
{
    $prijsVerdieping = $oppervlakte * 120;
}


if(($telefoon == 1) || ($netwerk == 1))  
{
    $prijsCom = 20;
}

if(($telefoon == 1) && ($netwerk == 1))
{
    $prijsCom = 30;
}


$totalePrijs = $prijsOpp + $prijsVerdieping + $prijsCom; 

echo "<table class=\"tableExpo\">";

    echo "<th>Standnaam</th>";
    echo "<th>Oppervlakte</th>";
    echo "<th>Verdieping</th>";
    echo "<th>Telefoon</th>";
    echo "<th>Netwerk</th>";
    echo "<th>Totale prijs</th>";

        echo "<tr>";     
            echo "<td>".$standnaam."</td>";
            echo "<td>".$oppervlakte."</td>";
            echo "<td>".$verdieping."</td>";
            echo "<td>".$telefoon."</td>";
            echo "<td>".$netwerk."</td>";
            echo "<td>".$totalePrijs."</td>";
        echo "</tr>";

echo "</table>";

?>

<a href="ExpoFormulier.php">Terug naar het formulier</a>

</body>
</html>

</body>
</html>

Answer 1

1 extract()

2

$keys = array('standnaam', 'oppervlakte', ...);
foreach ( $keys as $key ) {
  $$key = isset($_SESSION[$key]) ? $_SESSION[$key] : 0;
}

$$key将为您创建$standnaam var等等。

Answer 2

将数组放在 $ _SESSION中会更容易吗？

$_SESSION['my_array'] = array('standnaam' => 'foo', 'oppervlakte' => 'bar');

然后，如果你想在其他地方访问数组，你可以（例如）：

$v = $_SESSION['my_array'];

validate($_SESSION['my_array']['standnaam']);

使用这样的数组的好处是可以更容易地使用foreach迭代它们来验证/处理它们的数据，并且您可以更轻松地划分$ _SESSION中的各种内容（而不是，例如，在$中运行所有内容） _SESSION通过validate（）可能不合适。）

E.g：

$_SESSION['form_data'] = array('Standnaam' => 'foo', 'Oppervlakte', => 'bar');

echo '<table><tr>';
foreach($_SESSION['form_data'] as $var)
{
  echo "<td>$var</td>";
}
echo '</tr></table>';

PHP在数组中使用会话变量

2 个答案: