I am trying to return database values for latitude and longitude from a PHP/MySQL query to my Javascript function in order to populate a google maps JSON request.
My PHP/MySQL query script, phpsearch2.php is:
<?php
include "base.php";
$name = $_GET["name"];
$query = "SELECT lat, lng FROM markers WHERE name = '".$name."'";
$result = mysql_query($query);
while($row = mysql_fetch_array ($result))
{
echo '{';
echo '"latitude":"'.$row['lat'].'",';
echo '"longitude":"'.$row['lng'].'",';
echo '}';
}
?>
It returns a value in this format:
{"latitude":"37.730267","longitude":"-122.498589",}
Here is my calculate root function, when I run the program I get an error saying 'origin is not defined' even though I think I am setting it to have the same value as the return result from the JSON request to phpsearch, I just don't know where the mistake lies.
function calcRoute() {
var startname = document.getElementById('start').value;
var endname = document.getElementById('end').value;
var waypts = [];
var checkboxArray = document.getElementById('waypoints');
for (var i = 0; i < checkboxArray.length; i++) {
if (checkboxArray.options[i].selected == true) {
waypts.push({
location:checkboxArray[i].value,
stopover:true});
}
}
$.getJSON("phpsearch2.php", {name : startname}, function (result) {
origin = google.maps.LatLng('result');
});
var end = new google.maps.LatLng('37.738029', '-122.499481');
var request = {
origin: origin,
destination: end,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.DirectionsTravelMode.WALKING
};
directionsService.route(request, function(response, status) {
//document.write('<b>'+ start + end + '</b>');
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
var route = response.routes[0];
var summaryPanel = document.getElementById('directions_panel');
summaryPanel.innerHTML = '';
// For each route, display summary information.
for (var i = 0; i < route.legs.length; i++) {
var routeSegment = i + 1;
summaryPanel.innerHTML += '<b>Time for a Walkabout </b><br>';
summaryPanel.innerHTML += '<b>From ' + startname + ' </b>';
summaryPanel.innerHTML += '<b>to ' + endname + '('+ route.legs[i].distance.text +')</b><br>';
}
}
});
}
You are passing 'result' in as a string. You need to pass the result object, without the quotes:
var origin = google.maps.LatLng(result);
Keep in mind that $.getJSON is asynchronous. You probably need to wrap the rest of your gmaps code in a function declaration, and call that function in the $.getJSON callback after origin is set. Otherwise you're still trying to use origin before it has been fetched from the server.
Something like:
$.getJSON("phpsearch2.php", {name : startname}, function (result) {
var origin = google.maps.LatLng(result);
// Now that we have our origin, we can initialize the rest
init(origin);
});
function init(origin) {
var end = new google.maps.LatLng('37.738029', '-122.499481');
var request = {
origin: origin,
<snip>
}
I am trying to populate JSON request with the data coming back from my phpsearch.php file (shown here)
<?php
include "base.php";
$name = $_GET["name"];
$query = "SELECT lat, lng FROM markers WHERE name = '".$name."'";
$result = mysql_query($query);
$json = array();
while($row = mysql_fetch_array ($result))
{
$bus = array(
'lat' => $row['lat'],
'lng' => $row['lng']
);
array_push($json, $bus);
}
$jsonstring = json_encode($json);
echo $jsonstring;
?>
The data shows in the console in this format:
[{"lat":"37.730267","lng":"-122.498589"}]
The route calculation function is at the bottom of the question, I previously had used an asynchronous JSON rewquest but this was causing the code to execjte before the origin value was set, now it is being set but it looks incorrect
How can I make sure my latitude and longitude results are in the correct JSON format? currently the JSON request looks like this:
Request URL:https://maps.googleapis.com/maps/api/js/DirectionsService.Route?4b0&5m4&1m3&1m2&1dNaN&2dNaN&5m4&1m3&1m2&1d37.738029&2d-122.499481&6e1&8b1&12sen-GB&100b0&102b0&callback=_xdc_._1rqnjk&token=80599
Route calculation code:
function calcRoute() {
var startname = document.getElementById('start').value;
var endname = document.getElementById('end').value;
var waypts = [];
var checkboxArray = document.getElementById('waypoints');
for (var i = 0; i < checkboxArray.length; i++) {
if (checkboxArray.options[i].selected == true) {
waypts.push({
location:checkboxArray[i].value,
stopover:true});
}
}
$.ajax({
url:'phpsearch2.php',
dataType:'html',
data:{name:startname},
async:false,
success:function (result)
{
console.log(result)
origin = new google.maps.LatLng(result[0].lat, result[0].lng);
}});
var end = new google.maps.LatLng('37.738029', '-122.499481');
var request = {
origin: origin,
destination: end,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.DirectionsTravelMode.WALKING
};
directionsService.route(request, function(response, status) {
document.write('<b>'+ origin +'</b>');
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
var route = response.routes[0];
var summaryPanel = document.getElementById('directions_panel');
summaryPanel.innerHTML = '';
// For each route, display summary information.
for (var i = 0; i < route.legs.length; i++) {
var routeSegment = i + 1;
summaryPanel.innerHTML += '<b>Time for a Walkabout </b><br>';
summaryPanel.innerHTML += '<b>From ' + startname + ' </b>';
summaryPanel.innerHTML += '<b>to ' + endname + '('+ route.legs[i].distance.text +')</b><br>';
}
}
});
}
The LatLng constructor takes two numbers as arguments, you're passing it a JSON object. Get the latitude and longitude properties out and pass the numbers directly, like this:
function (result){
origin = new google.maps.LatLng(result[0].latitude, result[0].longitude);
}
I'm guessing on the specific properties, you may want to console.log(result) to see the exact object structure.
Simple question guys , i have AJAX that pickup all data from page and it suppose to open new php page to update MySQL database , its only updating last row of data , BUT when i use alert from javascript just to check all data i got he does update whole table ... is there any chance that AJAX is not working fast enough or something?
here is my code
var request_type;
var browser = navigator.appName;
if (browser == "Microsoft Internet Explorer") {
request_type = new ActiveXObject("Microsoft.XMLHTTP");
}
else {
request_type = new XMLHttpRequest();
}
var http = request_type;
var MatchID = '';
var HomeTeam = '';
var AwayTeam = '';
var TipID = '';
var arrayMaxValues = 3;
var myArray = new Array(3);
var i = 0;
$('#teams_table input[type=text]').each(function () {
myArray[i] = $(this).val();
if (!!myArray[2])
{
MatchID = myArray[0];
HomeTeam = myArray[1];
AwayTeam = myArray[2];
if (HomeTeam > AwayTeam) {
TipID = 1;
}
else if (HomeTeam == AwayTeam) {
TipID = 2;
}
else if (HomeTeam < AwayTeam) {
TipID = 3;
}
http.open('get', 'adminUpdate.php?MatchID=' + MatchID + '&TipID=' +
TipID + '&HomeTeam=' + HomeTeam + '&AwayTeam=' + AwayTeam, true);
http.send(null);
myArray = new Array(3);
i=0;
}
else
{
i++;
}
});
It is kinda odd to me when i use
alert('MatchID = ' + MatchID + ' HomeTeamScore = ' + HomeTeam + ',
AwayTeamScore = ' + AwayTeam)
Inside of AJAX code i get whole table updated , without it just last row
And my php page
<?php
include('config.php');
$matchID = $_GET['MatchID'];
$tipID = $_GET['TipID'];
$HomeScore = $_GET['HomeTeam'];
$AwayScore = $_GET['AwayTeam'];
$query="update probatip1.matches set ResultTipID=".$tipID.",HomeTeamScore = "
.$HomeScore.",AwayTeamScore= ".$AwayScore." where MatchID =".$matchID;
$UpdateGame= mysql_query($query) or die(mysql_error());
mysql_close()
?>
Try encoding the data. i.e:
MatchID = encodeURIComponent(myArray[0]);
HomeTeam = encodeURIComponent(myArray[1]);
AwayTeam = encodeURIComponent(myArray[2]);
in php use
function escapedata($data) {
if(get_magic_quotes_gpc()) {
$data= stripslashes($data);
}
return mysql_real_escape_string($data);
}
to escape your data before updating the table. i.e:
$query="update probatip1.matches set ResultTipID=".escapedata($tipID).",HomeTeamScore = ".escapedata($HomeScore).",AwayTeamScore= ".escapedata($AwayScore)." where MatchID =".escapedata($matchID);
Hope this works.
Not really a direct answer, just something that you can base your answer from. What the code does is to submit a whole object using the $.post method in jquery which takes in 2 parameters and a callback function which is executed once the request is done.Not really sure by: open new php page to update MySQL database but I assume that you're simply using that page to update the database and not actually open it.
<script src="js/jquery.min.js"></script>
<script>
var obj = {
'teams' : [
{'name' : 'teamA', 'grade' : 'A'},
{'name' : 'teamB', 'grade' : 'B'}
]
};
$.post('access.php', {'obj' : obj}, function(data){
var d = JSON.parse(data);
for(var x in d){
console.log(d[x].name);
}
});
</script>
access.php:
<?php
$post = $_POST['obj']['teams'];
$array = [];
foreach($post as $row){
$name = $row['name'];
$grade = $row['grade'];
$array[] = ['name'=>$name, 'grade'=>$grade];
}
echo json_encode($array);
?>
So you only have to modify the php page, and put your database query inside the loop. This way you won't need to perform so many ajax request by putting it inside $.each
Then utilize $.each to build the object that you're going to submit via ajax through $.post method:
var obj = {};
$().each(function(index){
var myArray[i] = $(this).val();
var MatchID = myArray[0];
var HomeTeam = myArray[1];
var AwayTeam = myArray[2];
obj[index] = [];
obj[index]['match_id'] = MatchID;
});
The problem is with your logic in the way you are sending requests to php file to update the MYSQL. Actually you are running the ajax request in a loop and the loop is too fast that kills the previous update request.
Solution
You can compose an array and send it to the php outside the loop. That will work for you.
Guys with your help i managed to fix my problem
http.open('get', 'adminUpdate.php?MatchID=' + MatchID + '&TipID=' + TipID +
'&HomeTeam=' + HomeTeam + '&AwayTeam=' + AwayTeam, false);
http.send(null);
var response = http.responseText;
So basicly with this line i told http request not to go for next line of code until update in table is not completed , when http has done his job then it moves on next line of code.
Thank you for help
I made a TicTacToe Game! Just for fun. It works and all, but can't tell once someone has won. I used .inArray to look for winning solutions on the current board. The idea is once a winning combination of squares is on the board, an alert will pop up ("You won Bruh"). Maybe the inArray is comparing the win arrays to the chosen elements opposed to the elements of the win arrays to the chosen elements? I'm stumped. Check out the jsfiddle if you're interested and leave a response if you've figured it out. Thanks. http://jsfiddle.net/QH6W9/7/
//UPDATE
I ended up using a magic square and checking if combinations of 3 added to 15 and implemented self teaching and basic AI using possible combinations and a MySQL db. I used a second script to let the computer play itself and build up the database. It's not the most perfect code but see for yourself..
//---//--//--//--//--//--//---//--//--//--//--//---//
// TIC-TAC-TOE: //
//Good Old game. This version is meant to be a self//
//teaching system as a means to utilise and master //
//exchange between web-page, server and database. //
//---//--//--//--//--//--//---//--//--//--//--//---//
// Author: Dylan Madisetti
// Date: I don't remember?
$(document).ready(function(){
var magiclist = [8,3,4,1,5,9,6,7,2]; //for humans
var squares = [8,3,4,1,5,9,6,7,2]; //Le Magic Square\\
var xs = []; //------------//
var os = []; // 8 | 3 | 4 //
var x = 0; //----+---+---//
var o = 0; // 1 | 5 | 9 //
var gameover = -1; //----+---+---//
var FirstMoves = []; // 6 | 7 | 2 //
var SecondMoves = []; //------------//
var ThirdMoves = []; //All Diagonals,rows and Columns add to 15\\
var moves = [];
var i = 0;
win = false;
end = false;
// I have a radio button for whether the human plays as x or o
if(document.getElementById('human').checked) {
humanmove("x",x,xs,moves,squares,gameover,i,magiclist,"o",o,os); //human move
}else{
ajaxmove("x",x,xs,moves,squares,gameover,i,magiclist,"o",o,os); //computer move
x++;
i++;
humanmove("o",o,os,moves,squares,gameover,i,magiclist,"x",x,xs); //human move
};
});
//---//--//--//--//--//--//--//--//--//--//--//---//
// AjaxMove Desc. Checks if can win or block if it//
//can't, Sends data to MYSQLtest which in turn //
//queries xos database and returns best move is //
//then used. //
//---//--//--//--//--//--//--//--//--//--//--//---//
function ajaxmove(status,counter,turn,moves,squares,gameover,i,magiclist,otherturn){
bestmove = 0;
if (turn.length >= 2){ //goes through each possibility
FirstMoves = turn.slice(0);
while (FirstMoves.length > 1){
FirstX = FirstMoves[0];
SecondMoves = FirstMoves.slice(1);
ThirdMoves = squares.slice(0);
$.each (SecondMoves,function(){
if (ThirdMoves.length > 0){
SecondX = this;
$.each (ThirdMoves,function(){
ThirdX = this;
if (FirstX + SecondX + ThirdX == 15){
bestmove = this;
};
});
ThirdMoves = ThirdMoves.slice(1);
};
});
FirstMoves = FirstMoves.slice(1);
}
};
if ((bestmove == 0) && (otherturn.length >= 2)){
FirstMoves = otherturn.slice(0);
while (FirstMoves.length > 1){
FirstX = FirstMoves[0];
SecondMoves = FirstMoves.slice(1);
ThirdMoves = squares.slice(0);
$.each (SecondMoves,function(){
if (ThirdMoves.length > 0){
SecondX = this;
$.each (ThirdMoves,function(){
ThirdX = this;
if (FirstX + SecondX + ThirdX == 15){
bestmove = this;
};
});
ThirdMoves = ThirdMoves.slice(1);
};
});
FirstMoves = FirstMoves.slice(1);
}
};
if (bestmove == 0){
$.ajax({type:'POST',
async: false,
url:'/XOsAI/MYSQLtest.php',
data:{
status: status,
moves: moves,
remaining: squares,
gameover: gameover
},
success:
function(data){
bestmove = data;
}
});
};
bestmove = Number(bestmove);
index = squares.indexOf(bestmove);
turn[counter] = bestmove;
select = magiclist.indexOf(bestmove);
$('.square').eq(select).addClass(status);
$('.square').eq(select).addClass('clicked');
squares.splice(index,1);
moves[i] = turn[counter];
gamecheck(turn,squares,moves); //game check (see below)
if (win) {
alert ("You Lose!");
while (i <= 9){
i++;
moves[i] = "'" + status + "'";
};
$.ajax({type:'POST',
async: false,
url:'/XOsAI/MYSQLtest.php',
data:{
status: status,
moves: moves,
remaining: squares,
gameover: gameover
}
});
};
};
//---//--//--//--//--//--//--//--//--//--//--//---//
// HumanMove Desc. Allows human to make a move and//
//checks if they have won.Updates Database if so. //
//Also Triggers computer move. //
//---//--//--//--//--//--//--//--//--//--//--//---//
function humanmove(status,counter,turn,
moves,squares,gameover,
i,magiclist,otherstatus,
othercounter,otherturn){
$(".XOs").on('click', '.square:not(.clicked)', function() {
if (gameover == -1){
if (!$(this).hasClass("clicked")) {
$(this).addClass('clicked');
$(this).addClass(status);
data = magiclist[$('.square').index(this)];
turn[counter] = data;
index = squares.indexOf(data);
squares.splice(index,1);
moves[i] = turn[counter];
gamecheck(turn,squares,moves); //game check (see below)
if (!(end)){
if (win) {
alert ("You Win!");
gameover = 1;
while (i <= 9){
i++;
moves[i] = "'" + status + "'";
};
$.ajax({type:'POST',
async: false,
url:'/XOsAI/MYSQLtest.php',
data:{
status: status,
moves: moves,
remaining: squares,
gameover: gameover
}
});
$('.squares').addClass('clicked');
};
counter++;
i++;
if (gameover == -1){
ajaxmove(otherstatus,othercounter,otherturn,moves,squares,gameover,i,magiclist,turn); //computer move
othercounter++;
i++;
if (win) {gameover = 1;};
};
};
};
};
});
};
//---//--//--//--//--//--//--//--//--//--//--//---//
// GameCheck Desc. Runs through each possibility.//
//As data locations of divs are arranged in magic //
//square, checks if any three add to 15. Checks //
//for cat game as well. //
//---//--//--//--//--//--//--//--//--//--//--//---//
function gamecheck(turn,squares,moves){
if (turn.length >= 3){
FirstMoves = turn.slice(0);
while (FirstMoves.length >= 3){
FirstX = FirstMoves[0];
SecondMoves = FirstMoves.slice(1);
ThirdMoves = SecondMoves.slice(1);
$.each (SecondMoves,function(){
if (ThirdMoves.length > 0){
SecondX = this;
$.each (ThirdMoves,function(){
ThirdX = this;
if (FirstX + SecondX + ThirdX == 15){
win = true;
};
});
ThirdMoves = ThirdMoves.slice(1);
};
});
FirstMoves = FirstMoves.slice(1);
}
};
if (!(squares.length > 0) && win == false) { //if any remain
alert ("You Draw!");
gameover = 1;
moves[9] = "'c'";
$.ajax({type:'POST', //ajax to tell server Cat Game
async: false,
url:'/XOsAI/MYSQLtest.php',
data:{
status: "c",
moves: moves,
remaining: squares,
gameover: gameover
}
});
end = true;
};
};
and the php if anyone is interested
//--------------------------------------------------------------------------
// 1) Connect to mysql database
//--------------------------------------------------------------------------
$con = mysqli_connect($host,$user,$pass,$databaseName);
$dbs = mysqli_select_db($con,$databaseName);
//--------------------------------------------------------------------------
// 2) Query database for bestmove or insert data if gameover
//--------------------------------------------------------------------------
$gameover = 0;
$col = 0;
$status = $_POST['status'];
$moves = $_POST['moves'];
$gameover = $_POST['gameover'];
$remaining = $_POST['remaining'];
$bestresult = 0;
if ($gameover < 0){
$required = (count($remaining) * 50); //seemed large enough to make a smart move
if (count($moves) > 0){
foreach ($moves as $move){
$columns[$col].=' AND ';
$columns[$col].= '`';
$columns[$col].= ($col + 1);
$columns[$col].= '`=';
$columns[$col].= $move;
$col++;
};
$moves = implode(' ',$columns);
};
$sql = '
SELECT *
FROM xos
WHERE status=\'';
$sql .= $status;
$sql .= '\' ';
if (count($moves) > 0){
$sql .= $moves ;
};
$results = mysqli_query($con,$sql); //fetch result
$results = $results->num_rows;
echo $con->error;
if ($results > $required){
if (count($moves) == 0){
$col = 1;
};
$reset = $sql;
foreach ($remaining as $bestmove){
$sql .=' AND ';
$sql .= '`';
$sql .= $col;
$sql .= '`=';
$sql .= $bestmove;
$sql .= ' ';
$results = mysqli_query($con,$sql);
$results = $results->num_rows;
if ($con->error){
echo $con->error ."\n";
echo $sql .":";
echo $results ."\n \n";
}
if ($results >= $bestresult){
$bestresult = $results;
$bestplay = $bestmove;
};
$sql = $reset;
};
}else{
$sql = '
SELECT *
FROM xos
WHERE status=\'c\'';
if (count($moves) > 0){
$sql .=' AND ';
$sql .= $moves ;
};
$results = mysqli_query($con,$sql); //fetch result
$results = $results->num_rows;
if ($results > $required){
if (count($moves) == 0){
$col = 1;
};
$reset = $sql;
foreach ($remaining as $bestmove){
$sql .=' AND ';
$sql .= '`';
$sql .= $col;
$sql .= '`=';
$sql .= $bestmove;
$sql .= ' ';
$results = mysqli_query($con,$sql);
$results = $results->num_rows;
if ($con->error){
echo $con->error ."\n";
echo $sql .":";
echo $results ."\n \n";
}
if ($results >= $bestresult){
$bestresult = $results;
$bestplay = $bestmove;
};
$sql = $reset;
};
}else{
$max = count($remaining) - 1;
$bestplay = rand(0,$max);
$bestplay= $remaining[$bestplay];
};
};echo $bestplay;
}else{
$sql = "INSERT INTO `xos`(`1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `Status`) VALUES (";
for ($i = 0; $i <= 8; $i++) {
$sql .= $moves[$i];
$sql .= ",";
};
$sql .= "";
$sql .= $moves[9];
$sql .= ")";
if ($con->query($sql) === false){
echo $con->error;
echo $sql;
};
};
At first glance, it looks like in
$(wins).each(function(){
var maybe = $.inArray(this,xs); //if Xs match combos win
...
}
you're checking if the array xs is found in the currently checked winning combination instead of just comparing this to xs (both 1-dimensional arrays). [Tried $.inArray(wins, xs) but it won't work.]
Could this be it?
UPDATE: this version works: http://jsfiddle.net/QH6W9/9/
I fixed your code to retrieve the ids of the X'ed fields with this:
var xs = $(".x").map(function(i, el) {
return parseInt($(el).attr('id'))
}).get(); // get ids as array
And also the detection of the win situation:
$(wins).each(function() {
var found = true;
for(var i =0; i<this.length; i++) {
found &= ($.inArray(this[i], xs) > -1);
}
if (!found) return;
alert("You Won Bruh");
var all = $(".square");
$(all).addclass('clicked'); //stops more turns
return;
});
You have a couple of issues.
First, you are putting all of the locations of .x into an array, and then seeing if that array is in the wins array.
Unfortunately, $.inArray() will only return an index if the items are the same item, not if they have matching values.
$.inArray([4,5,6], [[1,2,3], [4,5,6]]) // returns -1
var ary1 = [1,2,3];
var ary2 = [4,5,6];
$.inArray(ary2, [ary1, ary2]); // returns 1
$.inArray(ary2, [ary1, [4,5,6]]); // returns -1
Secondly, if you are at a state in the game where you have more than 3 X's, you will never match a winning position:
X O _
X X O
X O _
In this case xs will equal [1,4,5,7]. This is a winning position, but will not match any of your arrays.
There are a number of other ways to go about this. The easiest, given your wins array, is to iterate through each and check if the div at each location in the array is an X. If so, stop and declare a win.
Demo: http://jsfiddle.net/jtbowden/4BDwt/1/
Note, I cleaned up some other code in this example.
Removed the redundant clickable class, and use
.square:not(.clicked).
Replaced .click() with .on().
Removed the .square IDs and just use the div order in XOs as the location, using .eq() with the array position. IDs shouldn't start with numbers, and it is better to store data in a jQuery data attribute, like <div data-location="1">, and retrieve it with .data('location'). But, in this case, it wasn't needed as the div order tells us where it is.
Replaced $(array).each(function(){}) with $.each(array, function(){}). This is the correct way to iterate over a normal array that is not jQuery objects.
You had two problems in your program:
First, you had the following:
parseInt(number);
xs[i] = number;
xs[i] was still getting a string because parseInt() does not modify its parameter. Instead, it returns the numeric value. So I changed that code to the more compact:
xs[i] = parseInt(number);
Secondly, in your $(wins).each() loop, you were using $.inArray(), but you already have the individual array, so you really wanted to do an array subset comparison there. Since Javascript/jQuery has no built-in array subset function, I just compared each element in the array:
$(wins).each(function(){
console.log( 'template: ' + this );
var allIn = true;
for( var i=0; i<this.length; i++ ) {
console.log( this[i] );
if( $.inArray( this[i], xs ) == -1 ) allIn = false;
}
if ( allIn ){
alert("You Won Bruh");
And now it works. I only did it for X's, not for O's...I'll leave that up to you! You can see my jsfiddle solution here:
http://jsfiddle.net/HxGZE/2/
EDIT: my solution now works. See the jsfiddle for proof.
i have this code on the server side:
<?php
header('Content-Type: text/html; charset=utf-8');
require "../general.variables.php";
require "../functions_validation.php";
require "../functions_general.php";
require "../../db_con.php";
$keyword = mysql_real_escape_string($_POST["keyword"]);
$query = mysql_query("
SELECT user_id, user_fullname, user_area, user_city, user_quarter, user_tmb
FROM `migo_users`
WHERE (
user_fullname LIKE '%".$keyword."%' AND user_id NOT IN (".$superAdmins2string.")
)
ORDER BY tmb_set DESC, user_fname ASC
LIMIT 7;
");
$i = 0;
while ($userInfo = mysql_fetch_array($query)) {
$area_name = mysql_fetch_array(mysql_query("
SELECT area_name
FROM `migo_areas`
WHERE
area_id='".$userInfo['user_area']."';
"));
$city_name = mysql_fetch_array(mysql_query("
SELECT city_name
FROM `migo_cities`
WHERE
city_id='".$userInfo['user_city']."';
"));
if ($userInfo['user_quarter'] != 0) {
$quarter_name = mysql_fetch_array(mysql_query("
SELECT quarter_name
FROM `migo_quarters`
WHERE
quarter_id='".$userInfo['user_quarter']."';
"));
}
else {
$quarter_name['quarter_name'] = "";
}
$rsl[$i]['user_id'] = $userInfo['user_id'];
$rsl[$i]['user_fullname'] = $userInfo['user_fullname'];
$rsl[$i]['user_area_name'] = $area_name['area_name'];
$rsl[$i]['user_city_name'] = $city_name['city_name'];
$rsl[$i]['user_quarter_name'] = $quarter_name['quarter_name'];
$rsl[$i]['user_tmb'] = $userInfo['user_tmb'];
$i++;
}
echo json_encode($rsl);
mysql_close();
?>
and this code on the client side:
$.ajax({
type : 'POST',
url : 'php/general.ajax/header_search.php',
//async : false,
//cache : false,
dataType : 'json',
data: {
keyword : sb_keyword
},
success : function(data) {
var hs_hits = 0;
var hs_row_nr = 1;
var hs_results = "<div class='sb_spacing'></div><div id='sb_rows_cont'>";
if (data != null) {
$.each(data, function(index, arr) {
hs_hits++;
if (arr['user_quarter_name'] != "") {
var quarter_text = " - " + arr['user_quarter_name'];
}
else {
var quarter_text = "";
}
hs_results = hs_results + "<a class='search_links' href=profile.php?id=" + arr['user_id'] + "><div class='sbr_row' row_nr='" + hs_row_nr + "'><div class='sbr_imgFrame'><img src='images/user_48x48/" + arr['user_tmb'] + "' alt=''></div><div class='sbr_name'>" + arr['user_fullname'].replace(regexp_hs_user_fullname, '<span>$&</span>') + "</div><div class='sbr_area'>" + arr['user_area_name'] + "</div><div class='sbr_area'>" + arr['user_city_name'] + quarter_text + "</div></div></a>";
hs_row_nr++;
});
}
if (hs_hits > 0) {
hs_results = hs_results + "</div><div class='sb_spacing'></div><a class='search_links' href='search.php?name=" + sb_keyword + "'><div id='sbr_botttom'>Se flere resultater for <span class='gay'>" + sb_keyword + "</span></div></a>";
$("#sb_results").html(hs_results).show();
searchSet = 1;
total_rows = hs_hits;
$("#sb_rows_cont > a:first .sbr_row").addClass('sbr_row_act');
on_a = $("#sb_rows_cont > a:first");
first_a = on_a;
last_a = $("#sb_rows_cont > a:last");
sb_url = $(on_a).attr('href');
search_navigator_init();
}
else {
$("#sb_results").hide();
searchSet = 0;
}
},
error : function() {
alert("ajax error");
}
});
one problem tho, if the query gives 0 results, and the each function tries to run on the client side my js code stops working..
so i was wondering what i could do here.
how can i retrieve the amount of hits from the server side, before i run the each loop?
You're instantiating $rsl in the middle of a loop (implicitly), but you aren't entering the loop unless you have at least one entry.
Instantiate $rsl up above your while loop:
...
$i = 0;
$rsl = array();
while ($userInfo = mysql_fetch_array($query)) {
...
And now when you encode it, it is an empty array instead of null. This will also save your HTTP error_log, and generally be happier. : )
I would try json_encode() your PHP array to allow JavaScript to eval it as a native JS object.
echo json_encode($some_array);
Just a note, json_encode() is only available for PHP versions 5.2 and higher.
$.getJSON('ajax.php',{form data}, functon(data){
if(data == '') return;
});