【发布时间】：2019-01-05 02:19:06
【问题描述】：
使用 Google Map API 编写交付服务 Web 应用程序。在我开始使用多 dem 数组作为 LatLng 参考之前，一直没有问题。现在我遇到了这个奇怪的错误--
"InvalidValueError: 不是 LatLng 或 LatLngLiteral"
我之前对 LatLng 使用了类似的数组引用，没有问题，但现在它是多 dem 数组，我得到了这个奇怪的错误。
<?php
session_start();
require 'ConnectTest.php';
// IF YOU'RE NOT LOGGED IN, KICK BACK TO LOGIN SCREEN
if(!isset($_SESSION['username']) || !isset($_SESSION['password'])){
header("Location:signin.php");
}
$servername = "localhost:3306";
$user = "sonic_client";
$pass = "client";
$dbName = "sonicStrains";
$drop = "DROP TABLE ".$_SESSION['username']."_deliveries";
mysqli_query($server, $drop);
//CREATE INDIVIDUAL DRIVER TABLE TO HOLD DELIVERIES
$createQuery = "CREATE TABLE ".$_SESSION['username']."_deliveries (
transaction_id VARCHAR(13),
timePaid INT(11),
username VARCHAR(30),
user_location VARCHAR(255),
user_lat float(10,6),
user_long float(10,6),
item_name VARCHAR(20),
item_quantity float,
driver_username VARCHAR(60),
driver_lat float(10,6),
driver_long float(10,6),
on_delivery tinyint(1))";
$created = mysqli_query($server, $createQuery);
if ($created){
//query the deliveries for open deliveries up untill 5 deliveries
$queryString = "SELECT * FROM deliveries LIMIT 5";
$query = mysqli_query($server, $queryString);
if($query){
// CREATE ARRAY TO HOLD QUERY ROWS
$rows = array();
while($queryresult = mysqli_fetch_assoc($query)){
$rows[] = $queryresult;
}
echo floatval($rows[0]['user_lat']);
echo"<br>";
//INSERT & UPDATE THE TABLES WITH DELIVERY QUERIES
foreach($rows as $row){
// INSERT INTO INDIVIDUAL DRIVER TABLE
$insertQuery = "INSERT INTO ".$_SESSION['username']."_deliveries (transaction_id, user_location, user_lat, user_long) VALUES('$row[transaction_id]', '$row[user_location]', '$row[user_lat]', '$row[user_long]')";
$insertExec = mysqli_query($server, $insertQuery);
// UPDATE MASTER LIST OF DELIVERIES SO THAT OTHER DRIVERS DONT QUERY SAME ORDER
$updateQuery = "UPDATE deliveries SET on_delivery=true, driver_username='$_SESSION[username]' WHERE transaction_id='$row[transaction_id]'";
$updateExec = mysqli_query($server, $updateQuery);
}
}else{echo mysqli_error($server);}
}else{echo mysqli_error($server);}
if(isset($_GET['pop'])){
array_shift($rows);
echo print_r($rows);
}
echo<<<_
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
</head>
<body>
<div class="Banner">
<div class="TitleText">Sonic Strains ©</div>
</div>
<div class="login">Logout</div>
<div class="gallery" id="container">
<div class="map" id="mapInsert"></div>
<div class="navButton">Start Nav</div><div class="orderButton">Order Details</div>
<div class="abortButton">Abort</div><div class="confirmButton" onclick="shiftOrder()">Confirm</div><div class="disclaimer"></div>
</div>
<script>
function initMap() {
navigator.geolocation.getCurrentPosition(function(position) {
var initialLocation = {lat:$rows[0]['user_lat'], lng:$rows[0]['user_long']};
var Map = new google.maps.Map(document.getElementById('mapInsert'));
Map.setCenter(initialLocation);
Map.setZoom(13);
// MAKE ANOTHER MARKER FOR THE CLIENT LOCATION
var userLocation = {lat:$rows[0]['user_lat'], lng:$rows[0]['user_long']};
var marker = new google.maps.Marker({
position:userLocation,
map:Map,
draggable:false,
clickable:false
});
marker.setMap(Map);
}, function(positionError) {
alert('Location could not be found');
},{enableHighAccuracy:true, timeout: 3000, maximumAge:1000});
}
function shiftOrder(){
var http = new XMLHttpRequest();
http.onreadystatechange = function(){
console.log(this.responseText);
}
http.open("GET", "driverIndex.php?pop='pop'", true);
http.send();
}
</script>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=[API_KEY]&callback=initMap"
async defer></script>
</body>
</html>
_;
?>
这里是 ref 数组的一个元素——
array(5) { [0]=> array(12) { ["transaction_id"]=> string(13) "5c2fb27078926" ["timePaid"]=> string(1) "0" ["username"]=> string(0) "" ["user_location"]=> string(44) "1301 Bataan St NW, Washington, DC 20036, USA" ["user_lat"]=> string(9) "38.907246" ["user_long"]=> string(10) "-77.037292" ["item_name"]=> string(18) "girl_scout_cookies" ["item_quantity"]=> string(1) "1" ["driver_username"]=> string(7) "Driver1" ["driver_lat"]=> string(8) "0.000000" ["driver_long"]=> string(8) "0.000000" ["on_delivery"]=> string(1) "1" }
再次，我尝试使用 floatval() 解析 lat & long，因为它说它不是数字
var initialLocation = {lat:floatval($rows[0]['user_lat']), lng:floatval($rows[0]['user_long'])};
但我得到--“floatval 未定义”
【问题讨论】：
-
提供给浏览器的代码是什么样的？
标签： javascript php html google-maps