下面是我的“home.php”代码。我想插入一些与地址相关联的值，将它们（查找并输入从用户插入的地址的纬度和经度）放入数据库和带有标记的地图中。
问题是，当 codeaddress() 执行时，它恰好在之前停止geocoder.geocode({'address': address},function(results, status) {..}，我无法将纬度和对数放入我的数据库中，并且在地图中没有标记。
如果我删除该行<form action="home.php" method="post" width="300px" height="300px">（当然还有 insertinDb() 的部分，因为现在我没有任何 $_POST 值）codeaddress() 有效，并且我有标记和纬度和经度值。
如果我删除对 codeaddress() 的调用，insertinDB() 就可以工作（当然没有插入 lat 和 lng 值）。
我哪里错了？如果问题中有什么不清楚的地方，请问我。
<!DOCTYPE html>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true"></script>
<HTML>
<HEAD>
<script type="text/javascript" src="jquery.js"></script>
<META NAME="GENERATOR" Content="AlterVista - Editor HTML">
<title>LowPricePetrol</title>
<link rel="stylesheet" type="text/css" href="homeformat.css"/>
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/PRIVATEKEY=true">
</script>
<script type="text/javascript">
var geocoder;
var map;
var lat_;
var lng_;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(41.92, 12.93);
var mapOptions = {
zoom: 6,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
}
function codeAddress() {
var contentString = '<div id="content">'+
'<h2 id="firstHeading" class="firstHeading">' + document.getElementById("nome").value + '</h2>'+
'<div id="bodyContent"><u>Indirizzo</u>: ' + document.getElementById("indirizzo").value + ' ' + document.getElementById("civico").value +'<br><u>Citta</u>: '+ document.getElementById("citta").value
+ '<br><u>Paese</u>: ' + document.getElementById("paese").value + '<br><u>Prezzo Benzina</u>: ' + document.getElementById("prezzoB").value + ' (euro/litro)</div>' +
'<u>Prezzo Diesel</u>: ' + document.getElementById("prezzoD").value +
' (euro/litro)</div>'+
'</div>';
var image = '/img/'+ document.getElementById("nome").value +'.png';
var infowindow = new google.maps.InfoWindow({content: contentString});
var ind2_map = document.getElementById("indirizzo").value;
var civ_map = document.getElementById("civico").value;
var cit2_map = document.getElementById("citta").value;
var pae2_map = document.getElementById("paese").value;
var address = ind2_map + " " + civ_map + ", " + cit2_map + ", "+ pae2_map ;
alert(address);
geocoder.geocode({'address': address},function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
alert(results[0].geometry.location);
lat_ =results[0].geometry.location.lat();
alert(lat_);
lng_ =results[0].geometry.location.lng();
alert(lng_);
document.getElementById('lat').value = lat_;
document.getElementById('lng').value = lng_;
var marker = new google.maps.Marker({
map: map,
icon:image,
position: results[0].geometry.location
});
google.maps.event.addListener(marker, 'click', function() {infowindow.open(map,marker);});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
</script>
<?php
function insertInDb() {
$database = mysql_connect( CONNECTION DB);
if (!$database) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("NAME DB", $database);
$sql="INSERT INTO Dati(NomeLuogo, Indirizzo, Citta, Paese, PrezzoB, PrezzoD, Lat, Lng)
VALUES
('$_POST[nome]','$_POST[indirizzo]','$_POST[citta]','$_POST[paese]','$_POST[prezzoB]', '$_POST[prezzoD]', '$_POST[lat]', '$_POST[lng]')";
if (!mysql_query($sql,$database)) {
die('Error: ' . mysql_error());
}
mysql_close($database);
}
?>
<script type="text/javascript">
function check_form(){
var check_n = document.getElementById("nome").value;
var check_i = document.getElementById("indirizzo").value;
var check_civ = document.getElementById("civico").value;
var check_cit = document.getElementById("citta").value;
var check_pa = document.getElementById("paese").value;
var check_prb = document.getElementById("prezzoB").value;
var check_prd = document.getElementById("prezzoD").value;
if(check_n == "" || check_i == "" || check_cit == "" || check_pa == "" || (check_prb == "" && check_prd == "") )
alert("Tutti i campi con asterisco sono obbligatori (almeno un prezzo va inserito)");
else{
codeAddress();
}
}
</script>
</HEAD>
<BODY onload="initialize();">
<div class="titlebox" style="center">
<img src="/img/Logo.png" alt="LowPricePetrol_Logo" width="700" height="150" align=%u201Dcenter%u201D />
</div>
<?php
if(isset($_POST["nome"]))
insertInDb();
?>
<div class="insertbox" style="center">
<br/>
<form action="home.php" method="post" width="300px" height="300px">
AGGIUNGI LA TUA SEGNALAZIONE
<br/>
<label for="nome">Seleziona il gestore:</label><br/>
<select id="nome" name="nome">
<option value="" selected="selected">-- seleziona --</option>
<option value="Eni" id="Eni">Eni</option>
<option value="Esso" id="Esso">Esso</option>
<option value="Ip" id="Ip">Ip</option>
<option value="Q8" id="Q8">Q8</option>
<option value="Tamoil" id="Tamoil">Tamoil</option>
<option value="Total" id="Total">Total</option>
</select><br/>
Indirizzo: <br/>
<input type="text" name="indirizzo" id="indirizzo"/> <br/>
Civico: <br/>
<input type="text" size="4" name="civico" id="civico"/> <br/>
Città: <br/>
<input type="text" name="citta" id="citta"/> <br/>
Paese: <br/>
<input type="text" name="paese" id="paese"/> <br/>
Prezzo benzina (euro/litro): <br/>
<input type="text" name="prezzoB" size="5" id="prezzoB"/> <br/>
Prezzo diesel (euro/litro): <br/>
<input type="text" name="prezzoD" size="5" id="prezzoD"/> <br/>
<input type="text" id="lat" name="lat"></input>
<input type="text" id="lng" name="lng"></input>
<br/>
<input type="submit" name="invia" onclick="check_form()"/>
</form>
</div>
<div class="mapbox" id="map_canvas" style="width:700px; height:350px" ></div>
</BODY>
</HTML>