Html Select Box 从 mysql 获取值

Question

您好，我在 select 盒子里的 mysql 中存了一个值。当我调用编辑页面时，我希望 select 框填充我存储在 mysql

中的值

$taskCompany = $mysqli->real_escape_string($_POST['taskCompany']); This returns 1 

<select id="taskCompany" required name="taskCompany" class="form-control">

    <option value="" disabled selected>Select a Company</option>
    <option value="1">building</option>
    <option value="2">maintenace</option>
</select></div>

我希望 select 框在加载编辑页面时显示正确的选项。我没有在数据库值中存储任何 select 选项，也没有在文本中存储作业创建时的 select 值。谢谢乔恩

Answer 1

<?php $taskCompany = $mysqli->real_escape_string($_POST['taskCompany']); ?>

<select id="taskCompany" required name="taskCompany" class="form-control">

    <option value="" disabled selected>Select a Company</option>
    <option value="1" <?php if($taskCompany == 1) echo "selected='selected'"; ?>>building</option>
    <option value="2" <?php if($taskCompany == 2) echo "selected='selected'"; ?>>maintenace</option>
</select></div>

Answer 2

你可以做到

<?php foreach($taskCompany as $row){ ?>
    <option value="unique id for select options">name for select options</option>
<?php } ?>

Answer 3

如果我理解正确的话，你的 MySQL 数据库中有他 value/values，你希望它们显示在你的下拉列表中列表：你可以这样做：

<option value = "1" <?php if($taskCompany == 1) echo "select='selected'";?>>building</option>

或者如果您的姓名也来自数据库。

<select id="taskCompany" required name="taskCompany" class="form-control">

<option>SELECT</option>
<?php
$res = musql_query("SELECT * FROM yourtablename");
while($row = mysql_fetch_array($res))
{
$taskCompany = $row['taskCompany'];
$co_name = $row['taskCompanyName'];
?>
<option value = "<?php echo $taskCompany; ?>" ><?php echo co_name; ?></option>
<?php } ?>

这里我使用 $co_name 作为名称显示，假设您有 building、maintenance 等存储在你的数据库。

This is for the time being, as I wanted to demonstrate but Please consider mysqli/PDO as mysql_* is deprecated.

Html Select Box 从 mysql 获取值

Html Select Box Get value from mysql

php

mysql

jquery

select

drop-down-menu