如何使用php在html中访问选择列表的值
如何使用php在html中访问选择列表的值
提问于 2018-06-26 01:46:09
<form action="pickup_locations.php" method="post">
<div class="row">
<div class="col-md-4">
<!--List Select-->
<select class="form-control" size="10" name="locationId" onselect="selectPickupLocation()">
<?php
$locations = getPickupLocationList();
foreach($locations as $location) {
echo '<option value="'.$location['id'].'">'.$location['name'].'</option>';
}
?>
</select>
</div>
</div>
<div class="row">
<div class="col-md-12">
<div class="btn-group" role="group">
<!--Create and Edit Buttons-->
<p><a href="pickup_location_form.php?action=create" class="btn btn-secondary">Create</a></p>
<?php
$locationId = $_POST['locationId'];
echo '<p><a href="pickup_location_form.php?action=edit&locationId='.$locationId.'" class="btn btn-secondary">Edit</a></p>';
?>
</div>
</div>
</div>
</form>
上面是我的html代码。这段代码实际上显示了一个可以选择的列表，然后是创建和编辑两个按钮。
我希望这些按钮重定向到另一个php脚本，但是，如果单击编辑，我需要将选择列表的值添加到url中。我现在用的方法不起作用，有人知道我是怎么做到的吗？
回答 1
Stack Overflow用户
发布于 2018-06-26 03:59:51
请检查以下代码。您可以使用POST数据加载pickup_location_form.php上的编辑表单，将编辑链接转换为提交按钮和表单的action="pickup_location_form.php?action=edit"
<form action="pickup_location_form.php?action=edit" method="post">
<div class="row">
<div class="col-md-4">
<select class="form-control" size="10" name="locationId" onselect="selectPickupLocation()">
<?php
$locations = getPickupLocationList();
foreach($locations as $location) {
echo '<option value="'.$location['id'].'">'.$location['name'].'</option>';
}
?>
</select>
</div>
</div>
<div class="row">
<div class="col-md-12">
<div class="btn-group" role="group">
<p><a href="pickup_location_form.php?action=create" class="btn btn-secondary">Create</a></p>
<p><button class="btn btn-secondary">Edit</button></p>
</div>
</div>
</div>
</form>在pickup_location_form.php文件上：
<?php
//pickup_location_form.php
$action = isset($_GET['action'])? $_GET['action'] : '';
if ($action == 'create') {
// ... Load the Edit form here ...
}
else if (($action == 'edit') && !empty($_POST['locationId'])) {
$locationId = $_POST['locationId'];
// ... Load the Edit form here for the $locationId ...
}
else {
// Neither Create or Edit was selected, you redirect to the previous page here or do something else....
}
?>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51029175
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