在php中从列表框中选择的值
我想要从列表框中选择的值,并希望将其存储在php变量中,因为我希望使用该变量以供进一步使用。请帮忙在php中从列表框中选择的值,php,listbox,selectedvalue,Php,Listbox,Selectedvalue,我想要从列表框中选择的值,并希望将其存储在php变量中,因为我希望使用该变量以供进一步使用。请帮忙 <form name="myform" method="post"> <?php include('dbconnect.php'); db_connect(); $query = "SELECT * FROM test_customer"; //Write a query $data = mysql_query($query);
<form name="myform" method="post">
<?php
include('dbconnect.php');
db_connect();
$query = "SELECT * FROM test_customer"; //Write a query
$data = mysql_query($query); //Execute the query
?>
<select id="cust_name" name="mylist" onchange="selectedvalue()">
<?php
while($fetch_options = mysql_fetch_array($data)) { //Loop all the options retrieved from the query
?>
//Added Id for Options Element
<option id ="<?php echo $fetch_options['test_id']; ?>" value="<?php echo $fetch_options['cust_name']; ?>"><?php echo $fetch_options['cust_name']; ?></option><!--Echo out options-->
<?php
}
?>
</select>
</form>
访问在参数中选择的值ValueVal
获取所选值并将其存储在input type=hidden中,因为您需要它以供进一步使用。如果要存储到php变量中,则必须发布表单。我在下面添加了一个提交按钮。您还必须指定表单提交到的操作:action=whatever.php
<form name="myform" method="post" action="whatever.php"> <!-- added action here -->
<?php
include('dbconnect.php');
db_connect();
$query = "SELECT * FROM test_customer"; //Write a query
$data = mysql_query($query); //Execute the query
?>
<select id="cust_name" name="mylist" onchange="selectedvalue()">
<?php
while($fetch_options = mysql_fetch_array($data)) { //Loop all the options retrieved from the query
?>
//Added Id for Options Element
<option id ="<?php echo $fetch_options['test_id']; ?>" value="<?php echo $fetch_options['cust_name']; ?>"><?php echo $fetch_options['cust_name']; ?></option><!--Echo out options-->
<?php
}
?>
</select>
<!-- added submit button -->
<input type="submit" value="ok" />
</form>
如果您想在不重新加载页面的情况下发布表单,则必须使用ajax。这对我很有用。请尝试此示例
使用$\u POST处理表单后,为什么不将其保存在php变量中?是否有不带onchange事件的选项?您能否演示如何将该值存储在php变量中?您想发布该变量吗?或者你想如何/为什么使用它?因此,我可以简化代码我想在另一个查询中传递该值,以便根据该值生成另一个列表框。使用AJAX..这样你就可以在更改选择时更改选择列表2..先生,我没有得到你实际上我想要另一个列表框,其中包含具有相同客户名称的州,然后还有城市
<form name="myform" method="post" action="whatever.php"> <!-- added action here -->
<?php
include('dbconnect.php');
db_connect();
$query = "SELECT * FROM test_customer"; //Write a query
$data = mysql_query($query); //Execute the query
?>
<select id="cust_name" name="mylist" onchange="selectedvalue()">
<?php
while($fetch_options = mysql_fetch_array($data)) { //Loop all the options retrieved from the query
?>
//Added Id for Options Element
<option id ="<?php echo $fetch_options['test_id']; ?>" value="<?php echo $fetch_options['cust_name']; ?>"><?php echo $fetch_options['cust_name']; ?></option><!--Echo out options-->
<?php
}
?>
</select>
<!-- added submit button -->
<input type="submit" value="ok" />
</form>
<?php
$cust_name = $_POST['mylist']; //mylist is the name of the select-list
?>
public function getAptTypesBySelectedKy($valKy) {
$stmt = "SELECT ap_typ_ky, ap_typ_desc FROM apt_types WHERE ap_stat=1 order by ap_typ_desc";
try {
$con = DataHandler::connect();
$values = $con->prepare($stmt);
if ($values->execute()) {
echo '<select class="form-control" name="type" id="apt_types_slc">';
while ($row = $values->fetch(PDO::FETCH_ASSOC)) {
if ($valKy === $row['ap_typ_ky']) {
echo '<option value="' . $row['ap_typ_ky'] . '" selected>' . $row['ap_typ_desc'] . '</option>';
} else {
echo '<option value="' . $row['ap_typ_ky'] . '">' . $row['ap_typ_desc'] . '</option>';
}
}
echo '</select>';
}
} catch (PDOException $ex) {
echo 'Error on apartment types';
$error = $ex;
print_r('<pre>' . $ex->getCode() . '</pre>');
print_r('<pre>' . $ex->getMessage() . '</pre>');
}
}
<?php
$__typKy;
if (isset($_RA)) {
$__typKy = $_RA['typeky'];// you need to find this key from database.
//this is the selected value key of `<select>`
}
$var = new DataHandler();
$var->getAptTypesBySelectedKy($__typKy);
?>