我在 html 页面上有两个下拉列表。数据来自mysql数据库，包含纬度、经度和地址等信息。用户从下拉列表中选择一项，然后单击“提交”。
在这个阶段，我想显示一个谷歌地图并在纬度和经度处放置一个标记。然后，当用户从第二个下拉列表中选择选项时，我只想在该 map 上添加一个标记。
目前，一旦他单击第一个下拉列表中的提交，我就可以加载 map ，但我尝试删除图钉的所有选项都不起作用。
这是我到目前为止已经实现的代码:
<?php
error_reporting(E_ALL);
ini_set('display_errors', '1');
require_once('auth.php');
include ('LoginConfig.php');
include ('FetchAgentDetails.php');
include ('FetchDeliveryDetails.php');
?>
<!--
To change this template, choose Tools | Templates
and open the template in the editor.
-->
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Delivery Management System</title>
<script src="http://maps.googleapis.com/maps/api/js?key=AIzaSyA0Rm5aK0BYu1f_TzhjkG97cchHHlQfrQY&sensor=false">
</script>
<style type="text/css">
html {height:100%}
body {height:100%;margin:0;padding:0}
#googleMap {height:100%}
</style>
<script>
function initialize()
{
var mapProp = {
center:new google.maps.LatLng(51.508742,-0.120850),
zoom:5,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map=new google.maps.Map(document.getElementById("googleMap")
,mapProp);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<style type="text/css">
<!--
.style1 {
font-size: 20px;
font-weight: bold;
}
-->
</style>
<style type="text/css">
table.collection {width:250px;border:2px solid black;border-style: outset;border-collapse:collapse;}
table.collection tr {background-color:#fff; border-bottom: 1px #99b solid;padding:10px;}
table.collection tr:hover {background-color:#ffe;}
table.collection td {display:table-cell;border-bottom: 1px #99b solid; padding:10px;}
table.collection td a {text-decoration:none; display:table-row; padding:0px; height:100%;}
</style>
</head>
<body bgcolor="#8E8E38"
<div style="clear: right;">
<p align="left" class="style1">Welcome Delivery Manager! </p>
<img style="position: absolute; top: 0; right: 0;" src="./Images/logo.jpg" alt="Company Logo" width="90" height="60" align="middle"></img>
</div>
<p align="left"><a href ="Home.php">Home</a></p>
<hr></hr>
<!-- START Main Wrap -->
<form method="post">
<fieldset>
<div style="clear: left;float:left;">
<label for="deliveryList">Delivery Items:</label>
<select name="deliveryList" id="deliveryList">
<option value="Select delivery item" selected="selected">Select delivery item</option>
<?php
$deliveryHandler = new FetchDeliveryDetails();
$itemNameArray = $deliveryHandler->getItemNames();
foreach ($itemNameArray as $innerArray) {
if (is_array($innerArray)) {
$value = $innerArray['itemName'];
echo "<option value=\"$value\"";
if (isset($_POST['deliveryList']) && $_POST['deliveryList'] == $value)
echo 'selected';
echo ">" . $value . "</option>\n";
}
}
?>
</select>
<input type="submit" name="submit" id="submit" value="Submit"/>
</div>
<div style="clear: right;float:right;">
<label for="agentList">Avaliable Agent:</label>
<select name="agentList" id="agentList">
<option value="" selected="selected">Select agent to assign</option>
<?php
$agentHandler = new FetchAgentDetails();
$agentNameArray = $agentHandler->getAgentNames();
foreach ($agentNameArray as $innerArray) {
if (is_array($innerArray)) {
$agentId = $innerArray['agentId'];
$firstNameValue = $innerArray['firstname'];
$lastNameValue = $innerArray['lastname'];
$fullName = $firstNameValue . ' ' . $lastNameValue;
echo "<option value=\"$agentId\">$fullName</option>\n";
}
}
?>
</select>
<input type="submit" name="agentSubmit" id="agentSubmit" value="Check Location"/>
</div>
</fieldset>
</form>
<?php
if (isset($_POST['deliveryList'])) {
$selectedItemName = $_POST['deliveryList'];
$deliveryHander = new FetchDeliveryDetails();
$itemDetailsArray = $deliveryHander->getAllDeliveryDetails($selectedItemName);
foreach ($itemDetailsArray as $valuesArray) {
$itemNameValue = $valuesArray['itemName'];
$itemDescriptionValue = $valuesArray['itemDescription'];
$ownerFirstname = $valuesArray['firstName'];
$ownerLastname = $valuesArray['lastName'];
$dateAdded = $valuesArray['dateAdded'];
$deliveryDate = $valuesArray['deliveryDate'];
$deliveryAddress = $valuesArray['deliveryAddress'];
$deliveryLatitude = $valuesArray['deliveryLatitude'];
$deliveryLongitude = $valuesArray['deliveryLongitude'];
$assignedAgent = $valuesArray['assignedAgentId'];
if ($assignedAgent == 0) {
$assignedAgent = "-";
}
echo "<table border=\"1\" align=\"left\" class =\"collection\">\n";
echo "<tr>\n";
echo "<td >Item Name:<b>$itemNameValue</td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>Item Description: <b>$itemDescriptionValue</td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>Owner Name: <b>$ownerFirstname $ownerLastname</td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>Date Added: <b>$dateAdded</td>\n";
echo "</tr>\n";
echo "<tr>";
echo "<td>Delivery Date: <b>$deliveryDate</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Delivery Address: <b>$deliveryAddress</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Assigned Agent: <b>$assignedAgent</td>";
echo "</tr>";
echo "</table>";
echo "<div id=\"googleMap\" style=\"width:500px;height:380px;\"></div>";
}
}
if (isset($_POST['agentList'])) {
}
?>
</body>
</html>
我差点忘了，这是我的第一个 PHP 应用程序，实际上是我的第一个 Web 应用程序。所以请对我宽容一些。还请指出其他错误，但请坚持问题。
最佳答案
好的，通过使用 iframe 和一些 php 就可以了
引用:
http://www.youtube.com/watch?v=HTm-3Cduafw
echo "<iframe style =\"display: block;
width: 800px;
padding-top: 2px;
height: 400px;
margin: 0 auto;
border: 0;\" width=\"425\" height=\"350\" align=\"center\" frameborder=\"0\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\"
src=\"https://maps.google.com/maps?f=d&source=s_d&saddr=$agent_map_url&
daddr=$map_url&hl=en&z=10&t=m&mra=ls&ie=UTF8&output=embed\"></iframe><br/>";
关于php - 使用 Javascript 和 PHP 通过下拉表单在网页上加载 Google map ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17509364/