Php 在多选框中显示数据库中的值
这是基本的多重选择框:Php 在多选框中显示数据库中的值,php,drop-down-menu,multiple-select,Php,Drop Down Menu,Multiple Select,这是基本的多重选择框: <select name="State" size="5" multiple="multiple"> <option value="1">Kedah</option> <option value="2">Kelantan</option> </select> 试一试 试试- $mysqli = new mysqli("localhost", "user", "password",
<select name="State" size="5" multiple="multiple">
<option value="1">Kedah</option>
<option value="2">Kelantan</option>
</select>
试一试
试试-
$mysqli = new mysqli("localhost", "user", "password", "database");
$res = $mysqli->query("select sta_id,sta_name from sys_state where sta_status = '1'");
?>
<select name="State" size="5" multiple="multiple">
<?php
while ($row = $res->fetch_assoc()) {
echo "<option value='".$row['sta_id']."'>".$row['sta_name']."</option>";
}
?>
</select>
$mysqli=newmysqli(“本地主机”、“用户”、“密码”、“数据库”);
$res=$mysqli->query(“从系统状态中选择sta_id、sta_名称,其中sta_状态为'1'”);
?>
好吧,基本上你可以回音
它们
$dsn = "mysql:host=localhost;dbname=x";
$user="root";
$password="";
try{
$connect = new PDO($dsn,$user,$password); // PDO= PHP Data Object
$connect->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
}catch(PDOException $e){echo $e->getMessage();}
$select = $connect->query("select sta_id,sta_name from sys_state where sta_status = '1';");
echo "<select name=\"State\" size=\"5\" multiple=\"multiple\">";
foreach ($select as $temp){
echo "<option value=\"1\">".temp["sta_name"]." </option>";
......
....
}
echo "</select>";
$connect=null;// CLOSE CONNECTION
$dsn=“mysql:host=localhost;dbname=x”;
$user=“root”;
$password=“”;
试一试{
$connect=new PDO($dsn,$user,$password);//PDO=PHP数据对象
$connect->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_异常);
}catch(异常$e){echo$e->getMessage();}
$select=$connect->query(“从系统状态中选择sta_id、sta_名称,其中sta_状态为'1';”;
回声“;
foreach($选择为$temp){
echo“.temp[“sta_name”]。”;
......
....
}
回声“;
$connect=null;//密切联系
但是把它们构造成一个函数会更好
首先,您应该连接到DB
下一步是获取这些行并将数据写入变量(它可以是数组或任何对象,在我的示例中,它是数组):
最后,在html页面上打印它们:
<select name="State" size="5" multiple="multiple">
<?php
foreach ($resultData as $key => $value) {
echo '<option value="'.$key.'">'.$value.'</option>';
}
?>
</select>
不过我还是这样做了:
<?php // MULTI SELECTION
$sql1 = " SELECT sta_id,sta_name FROM dof_perkhidmatan.sys_state WHERE sta_status = '1' ";
$result1 = $db->sql_query($sql1,END_TRANSACTION);
if($db->sql_numrows($result1) > 0)
{
?>
<select id="State" name="State" size="16" multiple="multiple">
<?php
// output data of each row
while($row_select = $db->sql_fetchrow($result1))
{
echo '<option value="'.$row_select['sta_id'].'">'.$row_select['sta_name'].'</option>';
}
?>
</select>
<?php
}
?>
试试这个,它对我很管用
<?php
<!-- Connect to your database-->
require 'dbconnect.php';
<!-- Fetch required data from the database-->
$sql="SELECT sta_id,sta_name from sys_state WHERE sta_status = '1' ";
$result = mysqli_query($con, $sql);
?>
<select multiple size="6">
<?php while($row = mysqli_fetch_assoc($result)){?>
<option value="<?php echo $row['sta_id']; ?>"> <?php echo $row['sta_name']; ?></option>
<?php
}
?>
</select>
那么您尝试了什么?尝试调用包含sqlselect选项值的函数,但失败了您使用的是哪种db连接?mysql_XXX、MySqlI、PDO?你需要提供更多的信息。否则,人们将无法提供有用的答案。这是一个只包含代码的答案,不会添加任何其他答案更全面涵盖的内容。(此答案还包括非最佳实践编码)
$sql = "SELECT sta_id,sta_name FROM sys_state WHERE sta_status = '1'";
$result = $conn->query($sql);
$resultData = [];
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$resultData[$row['sta_id']] = $row['sta_name'];
}
}
<select name="State" size="5" multiple="multiple">
<?php
foreach ($resultData as $key => $value) {
echo '<option value="'.$key.'">'.$value.'</option>';
}
?>
</select>
<?php // MULTI SELECTION
$sql1 = " SELECT sta_id,sta_name FROM dof_perkhidmatan.sys_state WHERE sta_status = '1' ";
$result1 = $db->sql_query($sql1,END_TRANSACTION);
if($db->sql_numrows($result1) > 0)
{
?>
<select id="State" name="State" size="16" multiple="multiple">
<?php
// output data of each row
while($row_select = $db->sql_fetchrow($result1))
{
echo '<option value="'.$row_select['sta_id'].'">'.$row_select['sta_name'].'</option>';
}
?>
</select>
<?php
}
?>
<?php
<!-- Connect to your database-->
require 'dbconnect.php';
<!-- Fetch required data from the database-->
$sql="SELECT sta_id,sta_name from sys_state WHERE sta_status = '1' ";
$result = mysqli_query($con, $sql);
?>
<select multiple size="6">
<?php while($row = mysqli_fetch_assoc($result)){?>
<option value="<?php echo $row['sta_id']; ?>"> <?php echo $row['sta_name']; ?></option>
<?php
}
?>
</select>