使用表单保存多个会话变量 [英] Save multiple session variables with a form
问题描述
我正在处理一个表格，其中包含维度字段，客户可以在其中填写并提交这些字段，并将其保存在会话变量中.到目前为止，我成功完成了1个表格，但是在节省了1次字段数据之后，对于客户而言，他可以再次填写表格(针对维度)，再填写另一个表格，等等.
I am working on a form with fields for dimensions where a customer can fill these fields in and submit them and they will be saved in session variables. So far I succeeded 1 form, but after saving 1 time the data of the fields it needs to be possible for the costumer that he can fill in a form again (for dimensions) and still another and another etc etc.
(我在标题的顶部开始了会话)
(I started the session in top of my header)
表格:
<form method="POST">
<label>A:</label>
<input name="wz_saving_a" type="text" />
<label>B:</label>
<input name="wz_saving_b" type="text" />
<input name="wz_submit_saving_1" type="submit" class="add_button" value="Add" />
</form>
用于在$ _SESSION中保存数据的PHP:
PHP for saving data in $_SESSION:
if(isset($_POST['wz_submit_saving_1'])) :
// Save submit
$_SESSION['wz_submit_saving_1'] = $_POST['wz_submit_saving_1'];
// Save wz_saving_a in session
$_SESSION['wz_saving_a'] = $_POST['wz_saving_a'];
// Save wz_saving_b in session
$_SESSION['wz_saving_b'] = $_POST['wz_saving_b'];
endif;
提交后，我将提交的数据显示给客户，例如:
After submit I show the submitted data to the costumer like:
<?php if(isset($_SESSION['wz_submit_saving_1'])) : ?>
<div id="wz_config_1" class="wz_config">
<ul>
<li>Your dimensions:</li>
<li>A: <?php if(isset($_SESSION['wz_saving_a'])) : echo $_SESSION['wz_saving_a']; endif; ?> mm</li>
<li>B: <?php if(isset($_SESSION['wz_saving_b'])) : echo $_SESSION['wz_saving_b']; endif; ?> mm</li>
</ul>
<?php endif; ?>
因此，这适用于1个提交，如果我提交表单，则第一个会话变量将被新数据刷新，但是现在我需要执行一些操作，以便客户可以添加多个维度集并保存在会话中.
So this works for 1 submit and if I submit the form the session variables of the first will be refreshed by the new data, but now I need something to do so the costumer can add multiple dimensions sets and save in the Session.
我的想法是在提交每个表单后，将字段的每个名称更改为_1 _2 _3.但是我不知道如何解决这个问题，所以我希望有人能给我一些建议.
My idea was to change every name of a field by _1 _2 _3 after each form submit. But I don't know how to fix this so I hope someone can give me some advice.
如果您愿意，我可以提供示例的网址吗?
I can give the url of my example if you want?
谢谢！
推荐答案
您可以使用多维会话数组:
You can use multidimensional session arrays:
$_SESSION['wz_saving_b'][$_POST['wz_saving_b']] = $_POST['wz_saving_b'];
或者，只需使用[]添加新键，但是您将拥有重复的值
Or, just use [] to add new keys, but you are going to have duplicated values
$_SESSION['wz_saving_b'][] = $_POST['wz_saving_b'];
假设用户在wz_saving_b中输入以下内容:
Let's say the user types in wz_saving_b the following things:
1，2，3
<?php
session_start();
?>
<form method="POST" action="">
<label>A:</label>
<input name="wz_saving_a" type="text" />
<label>B:</label>
<input name="wz_saving_b" type="text" />
<input name="wz_submit_saving_1" type="submit" class="add_button" value="Add" />
</form>
<?php
if(isset($_POST['wz_submit_saving_1'])):
$_SESSION['wz_saving_b'][$_POST['wz_saving_b']] = $_POST['wz_saving_b'];
?>
<div id="wz_config_1" class="wz_config">
<ul>
<li>Your dimensions:</li>
<li>B: <?php if(isset($_SESSION['wz_saving_b'])): foreach($_SESSION['wz_saving_b'] as $k => $v) { echo "$v "; } endif; ?> mm</li>
</ul>
<?php endif; ?>
<?php
var_dump($_SESSION);
?>
输出:
Your dimensions:
B: 1 2 3 mm
array (size=1)
'wz_saving_b' =>
array (size=3)
1 => string '1' (length=1)
2 => string '2' (length=1)
3 => string '3' (length=1)
所请求的抽象:
<?php
session_start();
?>
<form method="POST" action="">
<label>A:</label>
<input name="wz_saving_a" type="text" />
<label>B:</label>
<input name="wz_saving_b" type="text" />
<label>C:</label>
<input name="wz_saving_c" type="text" />
<label>D:</label>
<input name="wz_saving_d" type="text" />
<input name="wz_submit_saving_1" type="submit" class="add_button" value="Add" />
</form>
<?php
if(isset($_POST['wz_submit_saving_1'])) {
foreach($_POST as $key => $value) {
if($key != 'wz_submit_saving_1') {
$_SESSION[$key][] = $value;
}
}
}
?>
<div id="wz_config_1" class="wz_config">
<ul>
<li>Your dimensions:</li>
<?php foreach($_SESSION as $k => $v): ?>
<?php foreach($v as $saving => $wz): ?>
<li><?= strtoupper(substr($k, 10));?> : <?=$wz;?> mm</li>
<?php endforeach; ?>
<?php endforeach; ?>
</ul>
<?php
var_dump($_SESSION);
?>
我在这里用一些数字进行了一些随机输入.输出为:
I did some random inputs here with some numbers. The output is:
Your dimensions:
A : 1 mm
A : 6 mm
A : 5 mm
B : 1 mm
B : 6 mm
B : 5 mm
C : 4 mm
C : 8 mm
C : 5 mm
D : 4 mm
D : 7 mm
D : 5 mm
array (size=4)
'wz_saving_a' =>
array (size=3)
0 => string '1' (length=1)
1 => string '6' (length=1)
2 => string '5' (length=1)
'wz_saving_b' =>
array (size=3)
0 => string '1' (length=1)
1 => string '6' (length=1)
2 => string '5' (length=1)
'wz_saving_c' =>
array (size=3)
0 => string '4' (length=1)
1 => string '8' (length=1)
2 => string '5' (length=1)
'wz_saving_d' =>
array (size=3)
0 => string '4' (length=1)
1 => string '7' (length=1)
2 => string '5' (length=1)
根据提供的代码，这应该可行，我尝试在位置x上输入一次1和2 mm，然后在位置y上输入4和5 mm，输出为:
Based on the provided code, this should work, I tried to input one time 1 and 2 mm on position x, and then 4 and 5 mm on position y, the output was:
Rechte sparing 1
Formaat van de sparing:
A: 1 mm
B: 2 mm
Positionering van de sparing:
x
Rechte sparing 1
Formaat van de sparing:
A: 4 mm
B: 5 mm
Positionering van de sparing:
y
代码:
<?php
if(isset($_POST['wz_submit_saving_1'])) :
$straight_saving = array(
'wz_str_saving' => $_POST['wz_str_saving'],
'wz_saving_a' => $_POST['wz_saving_a'],
'wz_saving_b' => $_POST['wz_saving_b'],
'wz_submit_saving_1' => $_POST['wz_submit_saving_1']
);
$_SESSION['straight_saving'][] = $straight_saving;
endif;
if(isset($_SESSION['straight_saving'])) :
foreach($_SESSION['straight_saving'] as $sav) {
?>
<div class="wz_config">
<h3>Rechte sparing 1</h3>
<ul>
<li>
<ul>
<li>Formaat van de sparing:</li>
<li>A: <?php echo $sav['wz_saving_a']; ?> mm</li>
<li>B: <?php echo $sav['wz_saving_b']; ?> mm</li>
</ul>
</li>
<li>
<ul>
<li>Positionering van de sparing:</li>
<li><?php echo $sav['wz_str_saving']; ?></li>
</ul>
</li>
</ul>
<div class="clear"></div>
</div><!--End wz_config_1-->
<?php } endif; ?>
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