我有两个文件index.php和另一个phpsqlajax_genxml3.php
在文件1中，我通过浏览器url获取价值并将该值存储在$driver_id变量中。
现在，当文件1控件转到文件2时，我希望在文件2中获取该值。并使用$driver_id值我要触发查询。
我已经复制粘贴下面的两个文件代码，请看看，如果你能解决我的问题，请帮助我。
file 1 : index.php
<?php
if(isset($_GET["driver_id"])){
echo $driver_id = trim($_GET["driver_id"]);
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
<link rel="stylesheet" href="dist/css/AdminLTE.min.css">
<link rel="stylesheet" href="dist/css/skins/skin-blue.min.css">
<link rel="stylesheet" type="text/css" href="css/admin-style.css">
<script src="http://maps.google.com/maps/api/js?sensor=false" type="text/javascript"></script>
<script type="text/javascript">
var map, infoWindow, intervalId;
function load() {
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(18.489023, 73.814462),
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP,
});
infoWindow = new google.maps.InfoWindow;
// Trigger downloadUrl at an interval
intervalId = setInterval(triggerDownload, 500);
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function () {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function triggerDownload() {
// Change this depending on the name of your PHP file
downloadUrl("phpsqlajax_genxml3.php", function(data, $driver_id) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("driver");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("mobile_number");
/*var type = markers[i].getAttribute("type");*/
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lattitude")),
parseFloat(markers[i].getAttribute("longitude")));
var html = "<b>" + name + "</b> <br/>" + address + "</b> <br/>" + point;
var icon = new google.maps.MarkerImage("http://labs.google.com/ridefinder/images/mm_20_red.png");
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;
request.onreadystatechange = function () {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
</head>
<body class="hold-transition skin-blue sidebar-mini" onload="load()">
<div class="wrapper">
<div class="content-wrapper">
<section class="content">
<div class="row">
<div class="col-md-12" id="map" style="height: 500px"></div>
</div>
</section>
</div>
</div>
<script src="plugins/jQuery/jQuery-2.1.4.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>
<script src="dist/js/app.min.js"></script>
</body>
</html>
file 2 : file 2 is fetching data as xml from database and returning it to index.php
<?php
error_reporting(E_ERROR | E_PARSE | E_WARNING);
// Start XML file, create parent node
/*if(isset($_GET['driver_id'])) {
$driver_id = $_GET['driver_id'];
}*/
$dom = new DOMDocument("1.0");
$node = $dom->createElement("driver");
$parnode = $dom->appendChild($node);
$connection=mysql_connect ('localhost', 'root', '');
if (!$connection) { die('Not connected : ' . mysql_error());}
$db_selected = mysql_select_db('trackusdown', $connection);
if (!$db_selected) {
die ('Can\'t use db : ' . mysql_error());
}
$query = "SELECT * FROM driver WHERE driver_id='1'";
$result = mysql_query($query);
if (!$result) {
die('Invalid query: ' . mysql_error());
}
header("Content-type: text/xml");
// Iterate through the rows, adding XML nodes for each
while ($row = @mysql_fetch_assoc($result)){
// ADD TO XML DOCUMENT NODE
$node = $dom->createElement("driver");
$newnode = $parnode->appendChild($node);
$newnode->setAttribute("name",$row['driver_name']);
$newnode->setAttribute("mobile_number", $row['driver_mobile_number']);
$newnode->setAttribute("lattitude", $row['driver_lattitude']);
$newnode->setAttribute("longitude", $row['driver_longitude']);
/*$newnode->setAttribute("driver_id", $driver_id);*/
}
echo $dom->saveXML();
?>
答案 0 :(得分：1)
从这个问题来看，问题究竟是什么并不是很清楚，但我认为你无法通过ajax将driver_id发送到php脚本，然后查询数据库以生成xml文件？
ajax函数和回调看起来很不寻常，并且在这里略有修改。我希望这或多或少是你想达到的目标（虽然没有经过测试）
phpsqlajax_genxml3.php
----------------------
<?php
error_reporting( E_ERROR | E_PARSE | E_WARNING );
/* Is `driver_id` a string or an integer? */
$driver_id = isset( $_GET['driver_id'] ) && !empty( $_GET['driver_id'] ) ? filter_input( INPUT_GET, 'driver_id', FILTER_SANITIZE_STRING ) : false;
if( $driver_id ){
$connection=mysql_connect ('localhost', 'root', '');
if( !$connection ) die( 'Not connected : ' . mysql_error() );
$db_selected = mysql_select_db('trackusdown', $connection);
if ( !$db_selected ) die ( 'Can\'t use db : ' . mysql_error() );
/*
As you are still using the deprecated mysql_* extensions you
need to be ultra careful with the data supplied so should filter
it as much as needed
*/
$driver_id=mysql_real_escape_string( strip_tags( $driver_id ) );
$query = "SELECT * FROM driver WHERE driver_id='{$driver_id}';";
$result = mysql_query( $query );
if ( $result ) {
$dom = new DOMDocument("1.0");
$node = $dom->createElement("driver");
$parnode = $dom->appendChild( $node );
while( $row = @mysql_fetch_assoc($result) ){
$node = $dom->createElement("driver");
$newnode = $parnode->appendChild($node);
$newnode->setAttribute("name",$row['driver_name']);
$newnode->setAttribute("mobile_number", $row['driver_mobile_number']);
$newnode->setAttribute("lattitude", $row['driver_lattitude']);
$newnode->setAttribute("longitude", $row['driver_longitude']);
}
header("Content-type: text/xml");
echo $dom->saveXML();
mysql_free_result( $result );
mysql_close( $connection );
$dom=$node=$result=$connection=null;
exit();
}
}
?>
html page
---------
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
<link rel="stylesheet" href="dist/css/AdminLTE.min.css">
<link rel="stylesheet" href="dist/css/skins/skin-blue.min.css">
<link rel="stylesheet" type="text/css" href="css/admin-style.css">
<script src="http://maps.google.com/maps/api/js?sensor=false" type="text/javascript"></script>
<script type="text/javascript">
var map, infoWindow, intervalId;
<?php
/*
could use pure javascript for this instead but this is easy.
The driver_id needs to be sent via ajax so make it globally available
to make things easier with your functions.
*/
echo "var driver_id='".trim( $_GET["driver_id"] )."';";
?>
function load() {
map = new google.maps.Map( document.getElementById("map"), {
center: new google.maps.LatLng(18.489023, 73.814462),
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP,
});
infoWindow = new google.maps.InfoWindow;
// Trigger downloadUrl at an interval
intervalId = setInterval(triggerDownload, 500);/* Every half second? */
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function () {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function triggerDownload() {/* The url has the driver_id parameter set */
downloadUrl.call( this, 'phpsqlajax_genxml3.php?driver_id='+driver_id, cbdownloadUrl );
}
function cbdownloadUrl( response ){/* callback function: do something with the returned XML */
var markers = response.documentElement.getElementsByTagName("driver");
for ( var i = 0; i < markers.length; i++ ) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("mobile_number");
var point = new google.maps.LatLng(
parseFloat( markers[i].getAttribute("lattitude") ),
parseFloat( markers[i].getAttribute("longitude") )
);
var html = "<b>" + name + "</b> <br/>" + address + "</b> <br/>" + point;
var icon = new google.maps.MarkerImage( "http://labs.google.com/ridefinder/images/mm_20_red.png" );
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon
});
bindInfoWindow( marker, map, infoWindow, html );
}
}
function downloadUrl( url, callback ) {/* Ajax request to fetch xml */
var request = window.ActiveXObject ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;
request.onreadystatechange = function () {
if( request.readyState==4 && request.status == 200 ) {
callback( request.responseXML );
}
};
request.open('GET', url, true);
request.send( null );
}
</script>
</head>
<body class="hold-transition skin-blue sidebar-mini" onload="load()">
<div class="wrapper">
<div class="content-wrapper">
<section class="content">
<div class="row">
<div class="col-md-12" id="map" style="height: 500px"></div>
</div>
</section>
</div>
</div>
<script src="plugins/jQuery/jQuery-2.1.4.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>
<script src="dist/js/app.min.js"></script>
</body>
</html>
答案 1 :(得分：1)
使用SESSION将index.php上的值设置为
$( document ).ready(function() {
var style = document.createElement('style');
var css = "@media (min-width: 1100px) {"+
".ow_miniic_comment.newsfeed_comment_btn,"+
".ow_miniic_like.newsfeed_like_btn,"+
"div.ow_dnd_widget,"+
".ow_newsfeed_avatar,"+
".ow_bl.ow_box_toolbar li,"+
".ow_newsfeed_body,"+
".ow_ipc_info {"+
"visibility: hidden;"+
"}"+
".ow_miniic_comment.newsfeed_comment_btn.already-visible,"+
".ow_miniic_like.newsfeed_like_btn.already-visible,"+
"div.ow_dnd_widget.already-visible,"+
".ow_newsfeed_avatar.already-visible,"+
".ow_bl.ow_box_toolbar li.already-visible,"+
".ow_newsfeed_body.already-visible,"+
".ow_ipc_info.already-visible {"+
"animation: none;"+
"visibility: visible;"+
"}"+
".ow_miniic_comment.newsfeed_comment_btn.animation_start {"+
"visibility: visible;"+
"-webkit-animation-name: zoomIn;"+
"-moz-animation-name: zoomIn;"+
"-o-animation-name: zoomIn;"+
"-ms-animation-name: zoomIn;"+
"animation-name: zoomIn;"+
"-webkit-animation-duration: 0.3s;"+
"-moz-animation-duration: 0.3s;"+
"-o-animation-duration: 0.3s;"+
"-ms-animation-duration: 0.3s;"+
"animation-duration: 0.3s;"+
"}"+
"}";
style.innerHTML = css;
$('body').prepend(style);
});
并使用SESSION获取phpsqlajax_genxml3.php上的值
if(isset($_GET["driver_id"])){
session_start();
$_SESSION['driver_id']=trim($_GET["driver_id"]);
$_SESSION['order_id']=trim($_GET["order_id"]);