I'm trying to use a PHP Array to get long and lat values from a database, and put these onto a map using gmaps.js.
So far, I have created the array in PHP, and echoed this onto my page to confirm the correct values are being displayed.
$data = array();
$data['latitude'] = array($lat);
$data['longitude'] = array($lng);
echo json_encode($data);
So $data is the array, with the values I want inside.
I then want to use jQuery to get the data from json encode, put these into the map marker locations and display the markers like so:
$.ajax({
type: "POST",
url: "phppage.php",
dataType: "JSON",
success: function(data) {
$.each(data, function(key, value) {
poi_marker = {
marker: {
lat: data.latitude,
lng: data.longitude,
}
}
}
poi_markers.push(poi_marker);
});
map.addMarkers(poi_markers);
}
});
I get no errors in my console (using firefox and firebug), the map displays but no markers are shown.
I don't think that you're code is actually doing what you think that it is doing. See this fiddle for what is actually happening with your loop.
If you store the array differently on the PHP side, it'll be easier to loop through multiple markers in JS. Also, I don't think gmaps.js needs that extra 'marker' key in the object.
New PHP
$data = array();
$data[] = array(
'latitude' => $lat
,'longitude' => $long
);
echo json_encode($data);
New JS
var poi_markers = []; // make sure you declare this before using it. if you already declare it somewhere else, don't use this line
$.ajax({
type: "POST",
url: "phppage.php",
dataType: "JSON",
success: function(data) {
$.each(data, function(key, value) {
var poi_marker = {
lat: value.latitude,
lng: value.longitude
}
poi_markers.push(poi_marker);
});
map.addMarkers(poi_markers);
}
});
You might be having trouble because you specify dataType: "JSON" but (atleast in the code you posted) you don't change the header on the php side. You may need to add this line to the top of phppage.php
header("Content-Type: application/json", true);
Where I learned everything I know about gmaps.js
I suppose that the data retrieved successfully as needed
$.ajax({
type: "POST",
url: "phppage.php",
dataType: "JSON",
success: function(data) {
$.each(data, function(key, value) {
map.addMarker{
lat: data.latitude,
lng: data.longitude
}
}
}
});
Check This
Related
I would search for the solution, but I don't know what exactly do I have to search.
The task is to grab texts with ID's (#ftext_1,..._2,..._3,..._4) in html file and send them to php file. After some manipulation with texts in php file I have to insert them back into their ID's in html file.
Here is the code:
var text_1_Replace = $('#ftext_1').text();
var text_2_Replace = $('#ftext_2').text();
var text_3_Replace = $('#ftext_3').text();
var text_4_Replace = $('#ftext_4').text();
$('#ID').on('click', function(){
var text= {
ftext_1: text_1_Replace,
ftext_2: text_2_Replace,
ftext_3: text_3_Replace,
ftext_4: text_4_Replace
}
var targetFile = 'ajax/file.php';
$.ajax({
method: 'post',
url: targetFile ,
data: JSON.stringify(text),
contentType: 'application/JSON'
}).done(function(data) {
console.log(data);
});
});
How do I edit .done function to place new texts in their old ID's(#ftext_1,..._2,..._3,..._4)? The variable with texts array is $result.
so the answer is :
}).done(function(data) {
var text = JSON.parse(data);
var text1 = text.ftext_1;
var text2 = text.ftext_2;
var text3 = text.ftext_3;
var text4 = text.ftext_4;
$('#ftext_1').text(text1);
$('#ftext_2').text(text2);
$('#ftext_3').text(text3);
$('#ftext_4').text(text4);
So, the last update for the topic: The real and nice answer is:
.done(function(data) {
var text = JSON.parse(data);
$.each(text, function(i, val){
$("#" + i).text(val);
});
This code is the solution to my question in this topic. Thank you all, who responded!
The best for you would be send named property that looks like this
$.ajax({
method: 'post',
url: targetFile ,
data: {data: text},
dataType: "json",
success: function(response){
$.each(response, function(element){
$("#"+element.name).text(element.text);
});
}
});
Then in your php you could easily iterate data from post
<?php
$data = $_POST['data'];
$response = [
];
foreach($data as $elementName => $text){
// some text management
$response[] = ['name' => $elementName, 'text' => $text];
}
return json_encode($response);
When you change your received values in php you put them in an array so that you
can call it later easily
PHP
$values = array("one"=>5,
"two"=>"something",
"three"=>$something);
echo json_encode($values);
You need to add
dataType:'json'
in Jquery since you're returning json
JQuery
$.ajax({
method: 'post',
url: targetFile ,
data: JSON.stringify(text), # or data: {"value1":value,"value2":value2},
contentType: 'application/JSON',
dataType:'json',
success: function(response){
console.log(response.one); #Will console 5
console.log(response.two); #Will console "something"
console.log(response.three); #Will console whatever $something holds in php
}
});
You can call it however you want it (response) or (mydata)...
And then you just type response.yourdata (that you declared in php)
I am trying to use jQuery sortable and then save the changes to the database, however before I even get to updating the database I have something strange going on that I can't fathom. If I log the serialised data to the console, I get all items in the 'list' but if I echo out the json encoded array from the php script I only get one item - confused.com.
The jquery at the moment is:
$('#sortable-list').sortable({
//handle : '.handle',
update : function () {
var order = $(this).sortable('serialize');
var table = $(this).parent().attr('id');
console.log(order);
$.ajax ({
type: "POST",
url: templateDir + "/inc/changeSortOrder.php",
data: "order=" + order + "&sort=1&sort_table=" + table,
dataType: "json",
cache: false,
success: function(data)
{
console.log(data);
}
});
}
});
The PHP at the moment is:
if (isset($_POST['sort']) && $_POST['sort'] == 1) {
if ($_POST['sort_table'] == 'nationalities') {
$output = array();
$list = parse_str($_POST['order'], $output);
echo json_encode($output);
}
}
The console log gives me:
nationality[]=17&nationality[]=1&nationality[]=47&nationality[]=23&nationality[]=3&nationality[]=4&nationality[]=5&nationality[]=6&nationality[]=7&nationality[]=8&nationality[]=12&nationality[]=10&nationality[]=11&nationality[]=13&nationality[]=14&nationality[]=15&nationality[]=16&nationality[]=18&nationality[]=19&nationality[]=20&nationality[]=21&nationality[]=22&nationality[]=24&nationality[]=25&nationality[]=26&nationality[]=27 etc
And the echo json gives me:
Object {nationality: Array[1]}
nationality: Array[1]
0: "17"
length: 1
So for some reason the full array isn't being passed through to the PHP file and I can't work out why.
Your problem is that you are trying to assign a serialized array, to a single query string parameter, which will yield an incorrect query string. Try passing the serialized list as returned by the plugin serialize method like so:
$.ajax ({
type: "POST",
url: templateDir + "/inc/changeSortOrder.php",
data: order + "&sort=1&sort_table=" + table,
dataType: "json",
cache: false,
success: function(data)
{
console.log(data);
}
});
And then access the passed list in php with:
$list = $_POST['nationality'];
I have the following data in a JS script:
$("#holdSave").live('click', function () {
var arr = {};
var cnt = 0;
$('#holdTable tbody tr').each(function () {
arr[cnt] = {
buyer: $(this).find('#tableBuyer').html(),
sku: $(this).find('#tableSku').html(),
isbn: $(this).find('#tableISBN').html(),
cost: $(this).find('#tableCost').val(),
csmt: $(this).find('#tableConsignment').val(),
hold: $(this).find('#tableHold').val()
};
cnt++;
}); //end of holdtable tbody function
console.log(arr);
$.ajax({
type: "POST",
url: "holdSave.php",
dataType: "json",
data: {
data: arr
},
success: function (data) {
} // end of success function
}); // end of ajax call
}); // end of holdSave event
I need to send this to a php file for updating the db and emailing that the update was done. My console.log(arr); shows the objects when I run it in firebug, but I can't get any of the information on the php side. Here is what I have for php code:
$data = $_POST['data'];
print_r($data); die;
At this point I am just trying to verify that there is info being sent over. My print_r($data); returns nothing.
Can anyone point me in the right direction please?
dataType: "json" means you are expecting to retrieve json data in your request not what you are sending.
If you want to send a json string to be retrieved by $_POST['data'] use
data: {data: JSON.stringify(arr)},
Use the json_encode() and json_decode() methods
Use the next way:
data = {key1: 'value1', key2: 'value2'};
$.post('holdSave.php', data, function(response) {
alert(response);
});
Note: haven't tested it, make sure to look for parse errors.
Im trying to retrieve some data from JSON object which holds location information such as streetname, postcode etc. But nothing is being retrieved when i try and put it in my div. Can anybody see where im going wrong with this?
This is my ajax code to request and retrieve the data
var criterion = document.getElementById("address").value;
$.ajax({
url: 'process.php',
type: 'GET',
data: 'address='+ criterion,
success: function(data)
{
$('#txtHint').html(data);
$.each(data, function(i,value)
{
var str = "Postcode: ";
str += value.postcode;
$('#txtHint').html(str);
});
//alert("Postcode: " + data.postcode);
},
error: function(e)
{
//called when there is an error
console.log(e.message);
alert("error");
}
});
When this is run in the broswer is just says "Postcode: undefined".
This is the php code to select the data from the database.
$sql="SELECT * FROM carparktest WHERE postcode LIKE '".$search."%'";
$result = mysql_query($sql);
while($r = mysql_fetch_assoc($result)) $rows[] = $r;
echo json_encode($rows), "\n"; //Puts each row onto a new line in the json data
You are missing the data type:
$.ajax({
dataType: 'json'
})
You can use also the $.getJSON
EDIT: example of JSON
$.getJSON('process.php', { address: criterion } function(data) {
//do what you need with the data
alert(data);
}).error(function() { alert("error"); });
Just look at what your code is doing.
First, put the data directly into the #txtHint box.
Then, for each data element, create the string "Postcode: "+value.postcode (without even checking if value.postcode exists - it probably doesn't) and overwrite the html in #txtHint with it.
End result: the script is doing exactly what you told it to do.
Remove that loop thing, and see what you get.
Does your JSON data represent multiple rows containing the same object structure? Please alert the data object in your success function and post it so we can help you debug it.
Use the
dataType: 'json'
param in your ajax call
or use $.getJSON() Which will automatically convert JSON data into a JS object.
You can also convert the JSON response into JS object yourself using $.parseJSON() inside success callback like this
data = $.parseJSON(data);
This works for me on your site:
function showCarPark(){
var criterion = $('#address').val();
// Assuming this does something, it's yours ;)
codeAddress(criterion);
$.ajax({
url: 'process.php',
type: 'GET',
dataType: 'json',
data: {
address: criterion
},
success: function(data)
{
$("#txtHint").html("");
$.each(data, function(k,v)
{
$("#txtHint").append("Postcode: " + v.postcode + "<br/>");
});
},
error: function(e)
{
alert(e.message);
}
});
}
I need to get the distance between two points from JavaScript to PHP using Google Maps. Below is my function to get the distance and post no problems. Now, how can I send the arrays (i.e. volunteerDist and tvid) to another php file (i.e. distanceToDb.php) and what should be the code of my distanceToDb.php to get these data? Thanks! Actual codes is highly appreciated.
<?php
function getFDistance(lat, lng, vlat, vlng, vid) {
var eventlocation = new GLatLng(lat, lng);
var volunteerDist = new Array();
var tvid = new Array();
var volunteerlocation;
for(i=0;i<lat.length;i++) {
tvid[i] = vid[i];
volunteerlocation = new GLatLng(vlat[i], vlng[i]);
volunteerDist[i] = (Math.round((eventlocation.distanceFrom(volunteerlocation) / 1000)*10)/10);
}
$.ajax({
type: 'POST',
url: "distanceToDb.php",
data: {tvid: tvid, volunteerDist: volunteerDist},
success: function(data){
alert("Successful");
},
dataType: "json"
});
}
?>
I've passed arrays and objects using JSON in javascript, let's say through a jquery.post call:
$.ajax({
type: 'POST',
url: "distanceToDb.php",
data: {tvid: tvid, volunteerDist: volunteerDist},
success: successfunction,
dataType: "json"
});
Then, in the php file you just do this:
$js_data_arr = json_decode($_POST['data']);