我开始使用https://developers.google.com/maps/articles/phpsqlajax_v3并正在使用

https://developers.google.com/maps/articles/phpsqlsearch_v3尝试动态过滤mysql数据库中的内容，并根据返回的结果更新我的标记。

我的PHP返回一个有效的XML文件，所以不用担心。我只是不确定我在做什么错误的清理和从新的查询创建新的标记。

load()函数给了我一个很好的带有标记的新地图，但是表单似乎没有做任何事情。我什至尝试只是有形式按钮调用clearLocations()并没有任何反应。屏幕有点眨眼，但所有的点都留在那里。

Property Sales

//

var markersArr = [];

var map;

var infoWindow;

function updateMap(){

var maxbid = document.getElementById('maxbid').value;

var minbid = document.getElementById('minbid').value;

var salestatus = document.getElementById('salestatus').value;

var saledate = document.getElementById('saledate').value;

infoWindow = new google.maps.InfoWindow;

var queryString = "phpsqlajax_genxml3dynamic.php?maxbid=" + maxbid + "&minbid=" + minbid + "&salestatus=" + salestatus + "&saledate=" + saledate;

//var queryString = "phpsqlajax_genxml3dynamic.php?maxbid=" + maxbid + "&minbid=" + minbid;

queryString="phpsqlajax_genxml3dynamic.php?maxbid=340000&minbid=0&salestatus=*&saledate=*";

downloadUrl( queryString, function(data) {

var xml = data.responseXML;

markers = xml.documentElement.getElementsByTagName("marker");

clearLocations();

for (var i = 0; i < markers.length; i++) {

var SaleDate = markers[i].getAttribute("SaleDate");

var CaseNumber = markers[i].getAttribute("CaseNumber");

var Address = markers[i].getAttribute("Address");

var ZipCode = markers[i].getAttribute("ZipCode");

var Plaintiff = markers[i].getAttribute("Plaintiff");

var Defendant = markers[i].getAttribute("Defendant");

var Attorney = markers[i].getAttribute("Attorney");

var SoldTo = markers[i].getAttribute("SoldTo");

var PID = markers[i].getAttribute("PID");

var Appraisal = markers[i].getAttribute("Appraisal");

var MinBid = markers[i].getAttribute("MinBid");

var SaleAmt = markers[i].getAttribute("SaleAmt");

var SaleStatus = markers[i].getAttribute("SaleStatus");

var point = new google.maps.LatLng(

parseFloat(markers[i].getAttribute("Latitude")),

parseFloat(markers[i].getAttribute("Longitude"))

);

var info = "Sale Date:" + SaleDate +"
Address:"+ Address+"
Sale Amount:" + SaleAmt + "
Sale Date:" + SaleDate+ "
Case Number:"+ CaseNumber+ "
Address:"+ Addre\

ss+ "
Zipcode:"+ ZipCode+ "
Plaintiff:"+ Plaintiff+ "
Defendant:"+ Defendant+ "
Attorney:"+ Attorney+ "
Sold to:"+ SoldTo+ "
Parcel ID:"+ PID+ "
Appraisal:"+ Appraisal+\

"
Minimum bid:"+ MinBid+ "
Sale amount:"+ SaleAmt+ "
Sale status:"+ SaleStatus;

var icon = customIcons[SaleStatus] || {};

var marker = new google.maps.Marker({

map: map,

position: point,

icon: icon.icon,

shadow: icon.shadow

});

bindInfoWindow(marker, map, infoWindow, info);

markersArr.push(marker);

}

});

}

var customIcons = {

ACTIVE: {

icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',

shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'

},

CANCELLED: {

icon: 'http://labs.google.com/ridefinder/images/mm_20_black.png',

shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'

},

NOBIDNOSALE: {

icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',

shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'

},

SOLD: {

icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',

shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'

}

};

function clearLocations() {

infoWindow.close();

for (var i = 0; i < markers.length; i++) {

markersArr[i].setMap(null);

}

markersArr.length = 0;

}

function load() {

map = new google.maps.Map(document.getElementById("map"), {

center: new google.maps.LatLng(39.7620028,-84.3542049),

zoom: 10,

mapTypeId: 'roadmap'

});

infoWindow = new google.maps.InfoWindow;

// Change this depending on the name of your PHP file

// downloadUrl("phpsqlajax_genxml3.php", function(data) {

downloadUrl( "phpsqlajax_genxml3dynamic.php?maxbid=54,000&minbid=0&salestatus=*&saledate=*", function(data) {

var xml = data.responseXML;

var markers = xml.documentElement.getElementsByTagName("marker");

for (var i = 0; i < markers.length; i++) {

var SaleDate = markers[i].getAttribute("SaleDate");

var CaseNumber = markers[i].getAttribute("CaseNumber");

var Address = markers[i].getAttribute("Address");

var ZipCode = markers[i].getAttribute("ZipCode");

var Plaintiff = markers[i].getAttribute("Plaintiff");

var Defendant = markers[i].getAttribute("Defendant");

var Attorney = markers[i].getAttribute("Attorney");

var SoldTo = markers[i].getAttribute("SoldTo");

var PID = markers[i].getAttribute("PID");

var Appraisal = markers[i].getAttribute("Appraisal");

var MinBid = markers[i].getAttribute("MinBid");

var SaleAmt = markers[i].getAttribute("SaleAmt");

var SaleStatus = markers[i].getAttribute("SaleStatus");

var point = new google.maps.LatLng(

parseFloat(markers[i].getAttribute("Latitude")),

parseFloat(markers[i].getAttribute("Longitude")));

var info = "Sale Date:" + SaleDate +"
Address:"+ Address+"
Sale Amount:" + SaleAmt + "
Sale Date:" + SaleDate+ "
Case Number:"+ CaseNumber+ "
Address:"+ Addre\

ss+ "
Zipcode:"+ ZipCode+ "
Plaintiff:"+ Plaintiff+ "
Defendant:"+ Defendant+ "
Attorney:"+ Attorney+ "
Sold to:"+ SoldTo+ "
Parcel ID:"+ PID+ "
Appraisal:"+ Appraisal+\

"
Minimum bid:"+ MinBid+ "
Sale amount:"+ SaleAmt+ "
Sale status:"+ SaleStatus;

var icon = customIcons[SaleStatus] || {};

var marker = new google.maps.Marker({

map: map,

position: point,

icon: icon.icon,

shadow: icon.shadow

});

bindInfoWindow(marker, map, infoWindow, info);

markersArr.push(marker);

}

});

}

function bindInfoWindow(marker, map, infoWindow, html) {

google.maps.event.addListener(marker, 'click', function() {

infoWindow.setContent(html);

infoWindow.open(map, marker);

});

}

function downloadUrl(url, callback) {

var request = window.ActiveXObject ?

new ActiveXObject('Microsoft.XMLHTTP') :

new XMLHttpRequest;

request.onreadystatechange = function() {

if (request.readyState == 4) {

request.onreadystatechange = doNothing;

callback(request, request.status);

}

};

request.open('GET', url, true);

request.send(null);

}

function doNothing() {}

//]]>

Min Bid $ : and

$ :

Sale Status:

All

Active

Sold

Cancelled

No Bid, No Sale

Sale Date:

All

2012-06-08

2012-06-01

2012-05-25

2012-05-18

2012-05-11

2012-05-04

2012-04-27

2012-04-20

2012-04-13

2012-04-06

2012-03-30

2012-03-23

2012-03-16

2012-03-09

2012-03-02

再次，我99.9%确定PHP是好的，因为它返回用于填充字段的有效结果。我对自己做了什么错误更新感到困惑。

嘿所以这不是垃圾邮件让我发布这个党的问题。