I using the below php chat script to create chat section between two users on my web app. I am having a problem with the Ajax posting. When a user submits a chat it doesn't post or show in the chat window. I tried to inspect the error and this is the error message
Failed to load resource: the server responded with a status of 404 (Not Found)
The same error message is shown for submit.php and refresh.php.
Here's my code:
JS
//CHAT FUNCTION
var lastTimeID = 0;
$(document).ready(function() {
$('#btnSend').click( function() {
sendChatText();
$('#chatInput').val("");
});
startChat();
});
function startChat(){
setInterval( function() { getChatText(); }, 2000);
}
function getChatText() {
$.ajax({
type: "GET",
url: "refresh.php?lastTimeID=" + lastTimeID
}).done( function( data )
{
var jsonData = JSON.parse(data);
var jsonLength = jsonData.results.length;
var html = "";
for (var i = 0; i < jsonLength; i++) {
var result = jsonData.results[i];
html += '<div style="color:#' + result.color + '">(' + result.chattime + ') <b>' + result.usrname +'</b>: ' + result.chattext + '</div>';
lastTimeID = result.id;
}
$('#view_ajax').append(html);
});
}
function sendChatText(){
var chatInput = $('#chatInput').val();
if(chatInput != ""){
$.ajax({
type: "GET",
url: "submit.php?chattext=" + encodeURIComponent( chatInput )
});
}
}
chatClass.php
<?PHP
class chatClass
{
public static function getRestChatLines($id)
{
$arr = array();
$jsonData = '{"results":[';
$statement = $db->prepare( "SELECT id, usrname, color, chattext, chattime FROM chat WHERE id > ? and chattime >= DATE_SUB(NOW(), INTERVAL 1 HOUR)");
$statement->bind_param( 'i', $id);
$statement->execute();
$statement->bind_result( $id, $usrname, $color, $chattext, $chattime);
$line = new stdClass;
while ($statement->fetch()) {
$line->id = $id;
$line->usrname = $usrname;
$line->color = $color;
$line->chattext = $chattext;
$line->chattime = date('H:i:s', strtotime($chattime));
$arr[] = json_encode($line);
}
$statement->close();
$jsonData .= implode(",", $arr);
$jsonData .= ']}';
return $jsonData;
}
public static function setChatLines( $chattext, $usrname, $color) {
$statement = $db->prepare( "INSERT INTO chat( usrname, color, chattext) VALUES(?, ?, ?)");
$statement->bind_param( 'sss', $usrname, $color, $chattext);
$statement->execute();
$statement->close();
}
}
?>
submit.php
<?php
require_once( "chatClass.php" );
$chattext = htmlspecialchars( $_GET['chattext'] );
chatClass::setChatLines( $chattext, $_SESSION['usrname'], $_SESSION['color']);
?>
refresh.php
<?php
require_once( "chatClass.php" );
$id = intval( $_GET[ 'lastTimeID' ] );
$jsonData = chatClass::getRestChatLines( $id );
print $jsonData;
?>
Related
I´m using the jquery based table plugin "datatables" and I´m trying to implement an ajax based "range search" between two numbers ("start-date" and "end_date"). These entered values should be used for a query in the MySQL column "order_id".
On the server-sided script (fetch.php) I catch the both values like that.
if(isset($_POST['start_date'], $_POST['end_date'])) {
$query .= 'order_id BETWEEN "'.$_POST["start_date"].'" AND "'.$_POST["end_date"].'" AND ';
}
The problem is I can´t see any errors in the console, but after using the number range search no results are displayed.
The "category select menus" (category and category2) are working as expected.
I´ve setted up a test site, maybe you can help me to find the error: Testsite
This is my script:
$(document).ready(function () {
var category = "";
var category2 = "";
var start_date = "";
var end_date = "";
load_data();
function load_data(is_category, is_category2, start_date, end_date) {
console.log(is_category, is_category2, start_date, end_date);
var dataTable = $('#product_data').DataTable({
"processing": true,
"serverSide": true,
"order": [],
"ajax": {
url: "fetch.php",
type: "POST",
data: {
is_category: is_category,
is_category2: is_category2,
start_date: start_date,
end_date: end_date
},
}
});
}
// Number Range Search
$('#search').click(function () {
console.log($(this).attr('id'), start_date, end_date)
var start_date = $('#start_date').val();
var end_date = $('#end_date').val();
if (start_date != '' && end_date != '') {
$('#product_data').DataTable().destroy();
load_data('','',start_date, end_date);
}
else {
alert("Both Date is Required");
}
});
// Select Menu id="category"
$(document).on('change', '#category, #category2', function () {
//console.log($(this).attr('id'), category, category2)
if ($(this).attr('id') === "category") {
category = $(this).val();
} else if ($(this).attr('id') === "category2") {
category2 = $(this).val();
}
//
$('#product_data').DataTable().destroy();
if (category != '') {
load_data(category, category2);
}
else {
load_data();
}
});
// Select Menu id="category2"
$(document).on('change', '#category2', function () {
var category2 = $(this).val();
$('#product_data').DataTable().destroy();
if (category2 != '') {
load_data(category, category2);
}
else {
load_data();
}
});
});
fetch.php
//fetch.php
$connect = mysqli_connect("localhost", "xxxxx", "xxxxx", "xxxxx");
$columns = array('order_id', 'order_customer_name', 'order_item', 'order_value', 'order_date');
$query = "SELECT * FROM tbl_order WHERE ";
if(isset($_POST['start_date'], $_POST['end_date']))
{
$query .= 'order_id BETWEEN "'.$_POST["start_date"].'" AND "'.$_POST["end_date"].'" AND ';
}
if(isset($_POST["is_category"]))
{
$query .= "order_item = '".$_POST["is_category"]."' OR ";
}
if(isset($_POST["is_category2"]))
{
$query .= "order_customer_name = '".$_POST["is_category2"]."' AND ";
}
if(isset($_POST["search"]["value"]))
{
$query .= '
(order_id LIKE "%'.$_POST["search"]["value"].'%"
OR order_customer_name LIKE "%'.$_POST["search"]["value"].'%"
OR order_item LIKE "%'.$_POST["search"]["value"].'%"
OR order_value LIKE "%'.$_POST["search"]["value"].'%")
';
}
if(isset($_POST["order"]))
{
$query .= 'ORDER BY '.$columns[$_POST['order']['0']['column']].' '.$_POST['order']['0']['dir'].'
';
}
else
{
$query .= 'ORDER BY order_id DESC ';
}
$query1 = '';
if($_POST["length"] != -1)
{
$query1 = 'LIMIT ' . $_POST['start'] . ', ' . $_POST['length'];
}
$number_filter_row = mysqli_num_rows(mysqli_query($connect, $query));
$result = mysqli_query($connect, $query . $query1);
$data = array();
while($row = mysqli_fetch_array($result))
{
$sub_array = array();
$sub_array[] = $row["order_id"];
$sub_array[] = $row["order_customer_name"];
$sub_array[] = $row["order_item"];
$sub_array[] = $row["order_value"];
$sub_array[] = $row["order_date"];
$data[] = $sub_array;
}
function get_all_data($connect)
{
$query = "SELECT * FROM tbl_order";
$result = mysqli_query($connect, $query);
return mysqli_num_rows($result);
}
$output = array(
"draw" => intval($_POST["draw"]),
"recordsTotal" => get_all_data($connect),
"recordsFiltered" => $number_filter_row,
"data" => $data
);
echo json_encode($output);
Thats because the is_category and is_category2 are returning 0. You have probably an if statement on your php like if $_POST[is_category] but you also need to do the same in case there is no category selected. Please share the full php to help you out
on your click function replace load_data(start_date, end_date); with load_data('','',start_date, end_date);
function delete_user(email)
{
//if(confirm("Do you want to remove this user with mail id: "+email))
//{
var z = {email : email}
console.log(z)
$.ajax({
url: "delete_user.php",
type: 'POST',
data: z,
success: function (data) {
console.log(data);
return false;
var i=0;
var element = "<table style='border-collapse: collapse;'>"
while(data[i] != null)
{
element = element + "<tr style='height:15px' onmouseover='rowbig(this)' onmouseout='rowsmall(this)'><td>"+data[i].fname+" "+data[i].lname+"</td><td>"+data[i].email+"</td><td>"+data[i].dob+"</td><td><button onclick='delete_user(\""+data[i].email+"\")'><img src='delete.png' style='height:20px;width:20px'/></button></td></tr>";
i++;
}
element = element + "</table>";
$("#response").html( element );
},
cache: false,
contentType: false,
processData: false
});
//}
}
<?php
header("Content-Type:application/json");
$email ="";
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
function deliver_res($status_message,$result)
{
header("$status_message");
$response['status_message']=$status_message;
$response['result']=$result;
$json_response=json_encode ($response);
echo $json_response;
}
$servername = 'localhost';
$username = 'root';
$password = '';
$dbname = 'webdata';
$conn = mysqli_connect($servername, $username, $password, $dbname);
if(isset($_POST['email']))
{
$email = test_input($_POST["email"]);
}
else
{
deliver_res("name not received","false");
exit();
}
$sqll="DELETE FROM admindata WHERE email='".$email."';";
$result = mysqli_query($conn,$sqll);
$return_arr = array();
$sqll="SELECT * FROM admindata ORDER BY id DESC ;";
$result = mysqli_query($conn,$sqll);
while ($row = mysqli_fetch_array($result, MYSQLI_ASSOC))
{
$row_array['fname'] = $row['fname'];
$row_array['lname'] = $row['lname'];
$row_array['email'] = $row['email'];
$row_array['dob'] = $row['dob'];
array_push($return_arr,$row_array);
}
echo json_encode($return_arr);
echo "\n";
mysqli_close($conn);
?>
I just can't seem to pass the data as JSON using AJAX and Jquery to the PHP side. Is there anything anything wrong with the syntax?
I have problem to set the AJAX variable in use in my PHP code
When I change the value of area the following function will be called:
function find_map(){
var value1 = $("#area").val();
var value2 = $("#city").val();
$.ajax({
url :"find_my_map.php", // json datasource
type: "post", // method , by default get
dataType:"json",
data:
{
area_id:value1,
city_id:value2
},
success: function(data)
{
console.log(data);
$.each(data, function(index, element) {
alert("area_name:" + element.area_name);
alert("city_name:" + element.city_name);
var map_area_name= element.area_name;
var map_city_name= element.city_name;
$("#map_area_name").val(map_area_name);
$("#map_city_name").val(map_city_name);
});
},
error:function(data){
console.log(data);
}
});
}
find_my_map.php file
include_once("config.php");
if(isset($_POST['area_id']) && isset($_POST['city_id']))
{
$area_id = $_POST['area_id'];
$city_id = $_POST['city_id'];
$sql = "SELECT * FROM area a, city c WHERE a.city_id=c.city_id AND c.city_id='$city_id' AND a.area_id='$area_id'";
$qry = mysql_query($sql);
while($fetch = mysql_fetch_array($qry))
{
$area_name=$fetch['area_name'];
$city_name=$fetch['city_name'];
$data[]=array(
'area_name' => $area_name,
'city_name' => $city_name
);
}
$json_data = array($data);
echo json_encode($data);
}
this is my php code
<?php
echo $address ="here i want to use **map_area_name AND map_city_name**"; // Google HQ
$prepAddr = str_replace(' ','+',$address);
$geocode=file_get_contents('https://maps.google.com/maps/api/geocode/json?address='.$prepAddr.'&sensor=false');
$output= json_decode($geocode);
$area_latitude = $output->results[0]->geometry->location->lat;
$area_longitude = $output->results[0]->geometry->location->lng;
echo "<br><input type='text' name='area_latitude' id='area_latitude'value='".$area_latitude."'> <br>";
echo "<input type='text' name='area_longitude' id='area_longitude' value='".$area_longitude."'>";
?>
I'm trying about 2 days to fix this I will blow my mind I can't anymore..When I am running it in localhost it's just working fine but when I am trying it online its just returns same values...and all values not returns the search term I can't understand why.
Jquery
$(document).ready(function($){
$('#quick-search-input2').autocomplete({
source:'All/home/directsearch.php',
minLength:2,
autoFocus: true,
select: function(event,ui){
var code = ui.item.id;
if(code != '') {
location.href = 'Movies/' + code;
}
},
html: true,
open: function(event, ui) {
$('ul.ui-autocomplete').slideDown(500)('complete');
$(".ui-autocomplete").css("z-index", 1000);
},
}).data("ui-autocomplete")._renderItem = function (ul, item) {
return $("<li></li>")
.data("item.autocomplete", item)
.append("" + item.label + "")
.appendTo(ul);
};
});
PHP
$server = 'localhost';
$user = 'root';
$password = '';
$database = 'search';
$mysqli = new MySQLi($server,$user,$password,$database);
/* Connect to database and set charset to UTF-8 */
if($mysqli->connect_error) {
echo 'Database connection failed...' . 'Error: ' . $mysqli->connect_errno . ' ' . $mysqli->connect_error;
exit;
} else {
$mysqli->set_charset('utf8');
}
$term = stripslashes($_GET ['term']);
$term = mysql_real_escape_string($_GET ['term']);
$a_json = array();
$a_json_row = array();
include '../../connect.php';
/* ***************************************************************************** */
if ($data = $mysqli->query("SELECT * FROM search WHERE (title LIKE '%$term%' or keywords LIKE '%$term%') and serie = '' and visible = '' and complete = '' group by title, year order by clicks desc LIMIT 5")) {
while($row = mysqli_fetch_array($data)) {
$title = $row['title'];
$year = htmlentities(stripslashes($row['year']));
$type = $row['type'];
$customercode= htmlentities(stripslashes($row['link']));
$category= htmlentities(stripslashes($row['category']));
$synopsis= htmlentities(stripslashes($row['synopsis']));
$img= htmlentities(stripslashes($row['img']));
$id= htmlentities(stripslashes($row['id']));
$category = str_replace(" | ",", ", $category);
$shit = "'";
$ltitle = strtolower($title);
if ($type == "DL-HD")
{
$qualityresponse = '<img class="quality-banner img-responsive" src="Design/types/HD.png">';
}
else if ($type == "Non-HD")
{
$qualityresponse = '<img class="quality-banner img-responsive" src="Design/types/NonHD.png">';
}
else if ($type == "CAM")
{
$qualityresponse = '<img class="quality-banner img-responsive" src="Design/types/CAM.png">';
}
else
{
$qualityresponse = "";
}
$stitle = preg_replace("/[^A-Za-z0-9]/", "", $ltitle);
$a_json_row["id"] = $customercode;
$a_json_row["value"] = ''.$term.'';
$a_json_row["label"] = '
'.$qualityresponse.'<span class="titles">'.$title.'</span><p>'.$year.'</p></center>
';
array_push($a_json, $a_json_row);
}
}
$foundnum = mysql_num_rows(mysql_query("SELECT * FROM search WHERE (title LIKE '%$term%' or keywords LIKE '%$term%') and serie = '' and visible = '' and complete = '' group by title, year order by clicks desc LIMIT 5"));
if ($foundnum == 0)
{
$a_json_row["label"] = '
<li class="ac-no-results ac-item-hover ac-item-selected">No Movies found</li>
';
array_push($a_json, $a_json_row);
}
echo json_encode($a_json);
flush();
$mysqli->close();
$term = mysql_real_escape_string($_GET ['term']);
to
$term = mysqli->real_escape_string($_GET ['term']);
Hi I have used a code snippet from a tutorial for a chat application all of its scripts are working fine but after I tweak it to make the code work based on my requirements almost all of the scripts are working except for retrieving the conversation
The error I'm having is it doesn't retrieve the conversation from my database
here is the modified script
//Create the JSON response.
$json = '{"messages": {';
//Check to ensure the user is in a chat room.
if(!isset($_GET['chat'])) {
$json .= '"message":[ {';
$json .= '"id": "0",
"user": "Admin",
"text": "You are not currently in a chat session. <a href="">Enter a chat session here</a>",
"time": "' . date('h:i') . '"
}]';
} else {
$con3 = new PDO("mysql:host=". db_host .";dbname=db", db_username , db_password);
$con3->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$con4 = new PDO("mysql:host=". db_host .";dbname=chat_db", db_username , db_password);
$con4->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql5 = "SELECT * FROM users WHERE id = :rid LIMIT 1";
$stmt6=$con4->prepare($sql5);
$stmt6->bindValue( 'rid',$_POST['rid'], PDO::PARAM_STR);
$stmt6->execute();
foreach($stmt6->fetchAll()as $res)
{
$usern = $res['username'];
$user_lvl = $res['ulvl'];
}
$comb = $usern . $_POST['name'];
//Validation if msgid exists before creating a new table on the 2nd database
$sql6="SELECT msgid FROM thread WHERE combination1=:msgids OR combination2=:submsgids LIMIT 1";
$msg_id = $con4->prepare($sql6);
$msg_id->bindParam(':msgids', $comb, PDO::PARAM_STR);
$msg_id->bindParam(':submsgids', $comb, PDO::PARAM_STR);
$msg_id->execute();
$msgd = $msg_id->fetchColumn();
$tbpre = $msgd . "chat_conversation";
$sql7 = "SELECT msgid, message_content, username , message_time FROM $tblpre WHERE msgid=:chat";
$stmt7=$con3->prepare($sql7);
$stmt7->bindValue( ':chat', $msgd, PDO::PARAM_STR);
$stmt7->execute();
$message_query = $stmt7;
//Loop through each message and create an XML message node for each.
if(count($message_query) > 0) {
$json .= '"message":[ ';
while($message_array = $stmt7->fetch(PDO::FETCH_ASSOC)) {
$json .= '{';
$json .= '"id": "' . $message_array['msgid'] . '",
"user": "' . htmlspecialchars($message_array['username']) . '",
"text": "' . htmlspecialchars($message_array['message_content']) . '",
"time": "' . $message_array['message_time'] . '"
},';
}
$json .= ']';
} else {
//Send an empty message to avoid a Javascript error when we check for message lenght in the loop.
$json .= '"message":[]';
}
}
//Close our response
$json .= '}}';
echo $json;
Here is the code for calling this script
//Gets the current messages from the server
function getChatText() {
if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
receiveReq.open("GET", 'includes/getChat.php?chat='+uid+'&last=' + lastMessage, true);
receiveReq.onreadystatechange = handleReceiveChat;
receiveReq.send(null);
}
}
function sendChatText() {
if (sendReq.readyState == 4 || sendReq.readyState == 0) {
sendReq.open("POST", 'includes/getChat.php?last=' + lastMessage, true);
sendReq.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
sendReq.onreadystatechange = handleSendChat;
var param = 'message=' + document.getElementById('txtA').value;
param += '&name='+user;
param += '&uid='+uid;
param += '&rid='+document.getElementById('trg').value;
sendReq.send(param);
document.getElementById('txtA').value = '';
}
}
//When our message has been sent, update our page.
function handleSendChat() {
//Clear out the existing timer so we don't have
//multiple timer instances running.
clearInterval(mTimer);
getChatText();
}
function handleReceiveChat() {
if (receiveReq.readyState == 4) {
//Get a reference to our chat container div for easy access
var chat_div = document.getElementById('clog');
var response = eval("(" + receiveReq.responseText + ")");
for(i=0;i < response.messages.message.length; i++) {
chat_div.innerHTML += response.messages.message[i].user;
chat_div.innerHTML += ' <font class="chat_time">' + response.messages.message[i].time + '</font><br />';
chat_div.innerHTML += response.messages.message[i].text + '<br />';
chat_div.scrollTop = chat_div.scrollHeight;
lastMessage = response.messages.message[i].id;
}
mTimer = setTimeout('getChatText();',20000); //Refresh our chat in 2 seconds
}
}
Am I missing something here or doing something wrong?
You should rewrite using json_encode:
$messages = array();
//Check to ensure the user is in a chat room.
if(!isset($_GET['chat'])) {
$message_object = (object) array(
"id"=>"0",
"user"=>"Admin",
"text"=>"You are not currently in a chat session. <a href=\"\">Enter a chat session here</a>",
"time"=>date('h:i')
);
$messages[] = (object) array("message"=>$message_object);
} else {
$con3 = new PDO("mysql:host=". db_host .";dbname=db", db_username , db_password);
$con3->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$con4 = new PDO("mysql:host=". db_host .";dbname=chat_db", db_username , db_password);
$con4->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql5 = "SELECT * FROM users WHERE id = :rid LIMIT 1";
$stmt6=$con4->prepare($sql5);
$stmt6->bindValue( 'rid',$_POST['rid'], PDO::PARAM_STR);
$stmt6->execute();
foreach($stmt6->fetchAll()as $res)
{
$usern = $res['username'];
$user_lvl = $res['ulvl'];
}
$comb = $usern . $_POST['name'];
//Validation if msgid exists before creating a new table on the 2nd database
$sql6="SELECT msgid FROM thread WHERE combination1=:msgids OR combination2=:submsgids LIMIT 1";
$msg_id = $con4->prepare($sql6);
$msg_id->bindParam(':msgids', $comb, PDO::PARAM_STR);
$msg_id->bindParam(':submsgids', $comb, PDO::PARAM_STR);
$msg_id->execute();
$msgd = $msg_id->fetchColumn();
$tbpre = $msgd . "chat_conversation";
$sql7 = "SELECT msgid, message_content, username , message_time FROM $tblpre WHERE msgid=:chat";
$stmt7=$con3->prepare($sql7);
$stmt7->bindValue( ':chat', $msgd, PDO::PARAM_STR);
$stmt7->execute();
$message_query = $stmt7;
//Loop through each message and create an XML message node for each.
if(count($message_query) > 0) {
$message_object = (object) array(
"id"=>$message_array['msgid'],
"user"=>htmlspecialchars($message_array['username']),
"text"=>htmlspecialchars($message_array['message_content']),
"time"=>$message_array['message_time'
);
$messages[] = (object) array("message"=>$message_object);
} else {
//Send an empty message to avoid a Javascript error when we check for message lenght in the loop.
$messages[] = (object) array("message"=>array());
}
}
//Close our response
$result = (object) array('messages'=>$messages);
$json = json_encode($result);
echo $json;