我有 2 个文件。 html.php 和 getuser.php
在 html.php 中,我有一个动态下拉列表,其中填充了来自 mysql 数据库的 ID。 在 getuser.php 中,我的代码应该采用所选的下拉列表值并返回公司名称,其中 id 与下拉列表中的 id 值相同。
你可以在jsfiddle中看到文件(在js区域!):
html.php
( http://jsfiddle.net/qHvZM/1/ )
getuser.php
( http://jsfiddle.net/Ez9Hs/ )
<小时/>我想要实现什么: 该数据库具有以下详细信息:
cb_dealerid = 001, 002, 003, 004
cb_bedrijfsnaam = Joop BV、Kelly Ltd、Johan Ltd、Peter BV
当您从下拉值 002 中选择时,它应该在相应的区域显示 Kelly Ltd.
感谢您的帮助!
最佳答案
You have a form with a select field that is populated with a database of users and then when a user is selected, you want the company name for that user to appear on the same page without reloading the form.
html.php:
<script>
//AJAX request function
function createRequestObject(){
var requestObject;
requestObject = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
return requestObject;
}
//AJAX needed var for request object
var http = createRequestObject();
//AJAX check for exsiting value for column in table in the database
function showUser(str){
if (str==""){
document.getElementById("txtHint").innerHTML="";
return;
}
http.open("get","getuser.php?q="+str);//you may need to put in full path to your page such as "http://youdomain.com/getuser.php?q="
http.onreadystatechange = AJAXresponseAction;
http.send(null);
}
//AJAX function to run on status change
function AJAXresponseAction(){
if(http.readyState == 4){
var response = http.responseText;
//update element with AJAX response text
document.getElementById("txtHint").innerHTML=response;
}
}
</script>
<?php
// Load Joomla! configuration file
require_once('configuration.php');
// Create a JConfig object
$config = new JConfig();
// Get the required codes from the configuration file
$server = $config->host;
$username = $config->user;
$password = $config->password;
$database = $config->db;
// Tools dropdown
$con = mysql_connect($server,$username,$password);
mysql_select_db($database);
$sql = "SELECT cb_dealerid FROM cypg8_comprofiler";
$result = mysql_query($sql);
?>
<form>
<select name='cb_dealerid' onchange='showUser(this.value)'>
<?php while ($row = mysql_fetch_array($result)) { ?>
<option value="<?php print $row['cb_dealerid'];?>"><?php print $row['cb_dealerid'];?></option>
<?php } ?>
</select>
</form>
<br>
<div id="txtHint"><b>Person info will be listed here.</b></div>
获取用户.php:
<?php
$q=$_GET["q"];
// Load Joomla! configuration file
require_once('configuration.php');
// Create a JConfig object
$config = new JConfig();
// Get the required codes from the configuration file
$server = $config->host;
$username = $config->user;
$password = $config->password;
$database = $config->db;
$con = mysqli_connect($server,$username,$password,$database);
if (!$con){
die('Could not connect: ' . mysqli_error($con));
}
mysqli_select_db($con,$database);
//********************************************************************//
// ALWAYS MAKE SURE TO ESCPAE STRINGS WHEN USING VARIABLES IN QUERIES //
//********************************************************************//
$q = mysqli_real_escape_string($con,$q);
$sql="SELECT * FROM cypg8_comprofiler WHERE cb_dealerid = '".$q."' LIMIT 1";
$result = mysqli_query($con,$sql);
$row = mysqli_fetch_array($result);
//If a table is needed build it on the html page for easier coding.
print $row['cb_dealerbedrijfsnaam'];
mysqli_close($con);
?>
关于php - 动态下拉选择使用ajax填充数据库中的文本字段,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18319013/