Develop Reference

JSON_encode not outputting anything

I want to send a query result from one php file to my javascript, I've used an AJAX which seems to work as it is getting data from my BaseClass.php. However when using JSON_encode, it is not outputting anything at all. So I can't work out how to send a query result from one php file(MySQLDao.php) to my BaseClass.php so I am then able to send it to my Javascript file.
My Code:
BaseClass.php:
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
require("Conn.php");
require("MySQLDao.php");
//$param=$_REQUEST['action'];
//echo json_encode($_GET);
//echo var_dump(json_encode($_GET));
$handle = fopen("php://input", "rb");
$param = $_REQUEST['action'];
while (!feof($handle)) {
$param .= fread($handle, 8192);
}
fclose($handle);
if (empty($param))
{
$returnValue["status"] = false;
$returnValue["title"] = "Error";
$returnValue["message"] = "No Data Recieved paige" .$param ."...";
echo json_encode($returnValue);
return;
}
else
{
$dao = new MySQLDao();
if ($dao->openConnection() == false)
{
$returnValue["status"] = false;
$returnValue["title"] = "Error";
$returnValue["message"] = "Connection Could Not Be Established Between Server And Database";
ob_clean();
echo json_encode($returnValue);
}
else
{
//Decodes data, dont change
$body = json_decode($param, true);
$recieved = $body["data"];
//Gets the result of a query
$result = $dao->getResults($recieved);
}
$dao->closeConnection();
//Return the result of the query
ob_clean();
echo json_encode("param" .$param);
echo json_encode("body" .$body);
echo json_encode("recieved" .$recieved);
echo json_encode("result" .$result);
exit();
}
?>
output for the above echo statements:
"paramgetResults""body""recieved""result"
MySQLDao.php - this file holds the query result that I want to pass to my js
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
//Class for holding queries
class MySQLDao
{
var $dbhost = null;
var $dbuser = null;
var $dbpass = null;
var $mysqli = null;
var $dbname = null;
var $result = null;
//constructor
function __construct()
{
$this->dbhost = Conn::$dbhost;
$this->dbuser = Conn::$dbuser;
$this->dbpass = Conn::$dbpass;
$this->dbname = Conn::$dbname;
}
//Attempt a connection to the database
public function openConnection()
{
//Try and connect to the database
$this->mysqli = new mysqli($this->dbhost, $this->dbuser, $this->dbpass, $this->dbname);
//If the connection threw an error, report it
if (mysqli_connect_errno())
{
return false;
}
else
{
return true;
}
}
//Get method for retrieving the database conection
public function getConnection()
{
return $this->mysqli;
}
//Close the connection to the database
public function closeConnection()
{
//If there is a connection to the database then close it
if ($this->mysqli != null)
$this->mysqli->close();
}
//-----------------------------------QUERY METHODS-------------------------------------
public function getResults()
{
$sql = "SELECT room.room_description FROM room WHERE room.room_id = 1";
$result = $this->mysqli->query($sql);
//if (mysql_num_rows($result) == 1) {
// $obj = mysql_fetch_object($result, 'obResults');
// echo($obj);
// return $obj;
//}
echo json_encode($result);
//echo($result);
//return false;
}
}
?>
My AJAX code in my js file:
$.ajax ({
type: "GET",
datatype: "application/json",
url: "BaseClass.php",
data: { action : 'getResults' },
//error: function(err){console.log(err)},
success: function(output) {
console.log(output);
//alert(output);
}
//error, function(err){console.log(err)}
});
Any help is appreciated thanks!

My database won't connect

I'm not sure why my db isn't connecting. I'm basically trying to produce a website in javascript, and I'm using an AJAX to call a method in a php file. This method is a query so I can get results of this query into some of my js components. Can anyone help please? I've been stuck for ages! Any help is appreciated.
Part of my javascript file:
function callPHP() {
$.ajax ({
type: "GET",
datatype: "application/json",
url: "BaseClass.php",
data: { action : 'getResults()' },
//error: function(err){console.log(err)},
success: function(output) {
console.log(output);
}
//error, function(err){console.log(err)}
});
}
callPHP();
My BaseClass(The content in the comments wouldn't work):
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
require("Conn.php");
require("MySQLDao.php");
$param=$_REQUEST['action'];
/*
$handle = fopen("php://input", "rb");
$raw_post_data = '';
while (!feof($handle)) {
$raw_post_data .= fread($handle, 8192);
}
fclose($handle);
*/
if (empty($param))
{
$returnValue["status"] = false;
$returnValue["title"] = "Error";
$returnValue["message"] = "No Data Recieved paige" .$param ."...";
echo json_encode($returnValue);
return;
}
else
{
$dao = new MySQLDao();
if ($dao->openConnection() == false)
{
$returnValue["status"] = false;
$returnValue["title"] = "Error";
$returnValue["message"] = "Connection Could Not Be Established Between Server And Database";
echo json_encode($returnValue);
}
else
{
//Decodes data, dont change
$body = json_decode($raw_post_data, true);
$recieved = $body["data"];
//Gets the result of a query
//$result = $dao->MySQLDaoMethodName(parameters);
//Return the result of the query
echo json_encode($result);
}
$dao->closeConnection();
return;
}
?>
My conn.php:
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
class Conn
{
public static $dbhost = "***";
public static $dbname = "***";
public static $dbuser = "***";
public static $dbpass = "***";
}
?>
MySQLDao.php(this file holds the methods I wish to call from my js file):
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
//Class for holding queries
class MySQLDao
{
var $dbhost = null;
var $dbuser = null;
var $dbpass = null;
var $mysqli = null;
var $dbname = null;
var $result = null;
//constructor
function __construct()
{
$this->dbhost = Conn::$dbhost;
$this->dbuser = Conn::$dbuser;
$this->dbpass = Conn::$dbpass;
$this->dbname = Conn::$dbname;
}
//Attempt a connection to the database
public function openConnection()
{
//Try and connect to the database
$this->mysqli = new mysqli($this->dbhost, $this->dbuser, $this->dbpass, $this->dbname);
//If the connection threw an error, report it
if (mysqli_connect_errno())
{
return false;
}
else
{
return true;
}
}
//Get method for retrieving the database conection
public function getConnection()
{
return $this->mysqli;
}
//Close the connection to the database
public function closeConnection()
{
//If there is a connection to the database then close it
if ($this->mysqli != null)
$this->mysqli->close();
}
//-----------------------------------QUERY METHODS-------------------------------------
public function getResults($data)
{
$sql = "SELECT room.room_description FROM room WHERE room.room_id = 1";
$result = $this->mysqli->query($sql);
//if (mysql_num_rows($result) == 1) {
// $obj = mysql_fetch_object($result, 'obResults');
//}
echo json_encode($result);
echo($result);
}
}
?>

PHP, phpmyadmin, html, javascript

I am having an issue ordering into a table primary id values which auto-increment from phpmyadmin and adding them into a table from recent to latest (greatest to lowest) can i get some help? I am using json to get php to javascript. This code only shows the table from latest to recent.
$app->get('/proyects/all', function () use($servername, $dbname, $dbuser, $dbpassword)
{
$response = array();
try
{
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $dbuser, $dbpassword);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $conn->prepare("SELECT * FROM proyectos");
if ($stmt->execute()) {
$result = $stmt->fetchAll();
}
$conn = null;
if(!empty($result))
{
$response['proyects'] = array();
foreach ($result as $key => $value)
{
$response['proyects'][$key] = $value;
}
$response['success'] = true;
echo json_encode($response);
return;
}
else
{
$response['success'] = false;
$response['message'] = "Proyects not found";
echo json_encode($response);
return;
}
}
catch(PDOException $e)
{
$response['success'] = false;
$response['message'] = $e->getMessage();
echo json_encode($response);
return;
}
});
<script type="text/javascript">
$(document).ready(function()
{
$.ajax(
{
url: path+'/proyects/all',
type: 'get',
dataType: "json",
success: function(json)
{
console.log(json);
if (json.success)
{
$.each(json.proyects, function( index, value ) {
$('#proyecs').append('<tr><td>'+value.idproyect+'</td><td>'+value.pdescription+'</td><td>'+value.presponsible+'</td><td>'+value.pdateini+'</td><td>'+value.pdatefin+'</td><td>'+value.pstatus+'&#37</td><td><button type="button" class="btn btn-default">Details</button></td></tr>');
});
}
else
{
Materialize.toast(json.message, 5000, 'red accent-4');
}
},
error : function(e, settings, exception)
{
Materialize.toast("Oops! an error has ocurred", 5000, 'red accent-4');
}
});
});
</script>
#sesonrario #rex sorry forgot the code

Could
$stmt = $conn->prepare("SELECT * FROM proyectos order by id");
solve your problem?

commands in chatroom & defining words after command

Okay basically I'm trying to have a action happen of alert('hi $message'); when a user enters the command /command lewis into the chatroom; In the alert I have stated the variable $message and this is the word followed by the command; for example /command $message. I have posted my script below; so basically what I'm trying to achieve is recognise when a user types /command followed by a $message into the textarea then perform an action.
Chatroom Javascript
name ='<? echo $chat_room_username; ?>';
$("#name-area").html("You are: <span>" + name + "</span>");
var chat = new Chat();
$(function() {
chat.getState();
// watch textarea for key presses
$("#sendie").keydown(function(event) {
var key = event.which;
//all keys including return.
if (key >= 33) {
var maxLength = $(this).attr("maxlength");
var length = this.value.length;
// don't allow new content if length is maxed out
if (length >= maxLength) {
event.preventDefault();
}
}
});
// watch textarea for release of key press
$('#sendie').keyup(function(e) {
if (e.keyCode == 13) {
var text = $(this).val();
var maxLength = $(this).attr("maxlength");
var length = text.length;
// send
if (length <= maxLength + 1) {
chat.send(text, name);
$(this).val("");
} else {
$(this).val(text.substring(0, maxLength));
}
}
});
});
var instanse = false;
var state;
var mes;
var file;
function Chat () {
this.update = updateChat;
this.send = sendChat;
this.getState = getStateOfChat;
}
//gets the state of the chat
function getStateOfChat(){
if(!instanse){
instanse = true;
$.ajax({
type: "POST",
url: "/rooms/process.php?room=<? echo $room; ?>",
data: {
'function': 'getState',
'file': file
},
dataType: "json",
success: function(data){
state = data.state;
instanse = false;
},
});
}
}
//Updates the chat
function updateChat(){
if(!instanse){
instanse = true;
$.ajax({
type: "POST",
url: "/rooms/process.php?room=<? echo $room; ?>",
data: {
'function': 'update',
'state': state,
'file': file
},
dataType: "json",
success: function(data){
if(data.text){
for (var i = 0; i < data.text.length; i++) {
var newdata = data.text[i].replace(/:brand/g,"<img src=\"/_img/logo1.png\"></img>");
newdata = newdata.replace(/:tipsound/g,"<audio autoplay><source src=\"/tip.wav\" type=\"audio/mpeg\"></audio>");
<?
$select_gifs = mysql_query("SELECT * FROM `submited_chatroom_gifs` WHERE `staff` = '1'");
while($gif = mysql_fetch_array($select_gifs)){
?>
newdata = newdata.replace(/:<? echo $gif['name']; ?>/g,"<img data-toggle=\"tooltip\" height=\"<? echo $gif['height']; ?>\" width=\"<? echo $gif['width']; ?>\"title=\":<? echo $gif['name']; ?>\" src=\"/_img/gifs/<? echo $gif['img']; ?>\"></img>");
<? } ?>
$('#chat-area').append($("<p>"+ newdata +"</p>"));
}
}
document.getElementById('chat-area').scrollTop = document.getElementById('chat-area').scrollHeight;
instanse = false;
state = data.state;
},
});
}
else {
setTimeout(updateChat, 1500);
}
}
//send the message
function sendChat(message, nickname)
{
updateChat();
$.ajax({
type: "POST",
url: "/rooms/process.php?room=<? echo $room; ?>",
data: {
'function': 'send',
'message': message,
'nickname': nickname,
'file': file
},
dataType: "json",
success: function(data){
updateChat();
},
});
}
process.php
<?php
$function = $_POST['function'];
$room = $_GET['room'];
$log = array();
switch($function) {
case('getState'):
if(file_exists($room . '.txt')){
$lines = file($room . '.txt');
}
$log['state'] = count($lines);
break;
case('update'):
$state = $_POST['state'];
if(file_exists($room . '.txt')){
$lines = file($room . '.txt');
}
$count = count($lines);
if($state == $count){
$log['state'] = $state;
$log['text'] = false;
}
else{
$text= array();
$log['state'] = $state + count($lines) - $state;
foreach ($lines as $line_num => $line)
{
if($line_num >= $state){
$text[] = $line = str_replace("\n", "", $line);
}
}
$log['text'] = $text;
}
break;
case('send'):
$nickname = $_POST['nickname'];
$reg_exUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
$message = htmlentities(strip_tags($_POST['message']));
if(($message) != "\n"){
if(preg_match($reg_exUrl, $message, $url)) {
$message = preg_replace($reg_exUrl, ''.$url[0].'', $message);
}
fwrite(fopen($room . '.txt', 'a'), "<p><font size=\"2px\">". $nickname . ": " . $message = str_replace("\n", " ", $message) . "</font></p>\n");
}
break;
}
echo json_encode($log);
}
?>
the alert is only for the person who wrote the command in
Thankyou for any help, and I apologise for the lengthy question.
[edit] Sorry just re-read my question and I will just try and explain what I'm trying to achieve in abit more detail. So basically when a user inputs /command lewis the script would then perform an alert('Hi Lewis');. But then if a user was to enter /command john the alert would be alert('Hi John');.
The alert would be instead of posting the message to the chatroom.

Variable getting via Ajax is empty ( Phonegap-Ajax-Json-PHP-MySQL )

I created an android application using Phonegap. I made an account in 000webhost and I've added my PHP files on the server. In the phpMyAdmin, I've created my database.
Right, now I tried to connect my project with the online database and insert or check some data in it.
PROBLEM:
When I run the application in my mobile phone i get this alert from the success: ... part of code in ajax :
There is no such username.
(my PHP had in comments all the echo, except the: echo json_encode)
When I added this line (var_dump($_POST);) right after i am getting the $usernamefrom ajax in the PHP and run my app, I saw this alert: array(1){ [\"username\"]=> string(2) \"hi"\" }
When I added these lines: if (empty($username)) { echo '...' } , after I run my app, I saw that in the alert inside the error: ... part of the ajax, it is printed the echo that is inside this if. So, the $username is empty for sure.
This is my JavaScript file: (I get correctly for sure all the values from html so Focus on the two Ajax parts of code)
document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap is ready
function onDeviceReady() {
var el = document.getElementById("register");
el.addEventListener("click", Register, false);
}
function Register() {
var username = document.getElementsByName('username')[0];
var password = document.getElementsByName('password')[0];
var email = document.getElementsByName('email')[0];
var strong_flag_user = 0;
var user = username.value;
if (username.value == "") {
$("#username").focus();
document.getElementById('username').style.boxShadow = "0 0 7px #f00";
navigator.notification.vibrate(500);
}
else{
$.ajax({
url: "http://www.guidemeforall.freeiz.com/phps/check_for_dublicates/check_username.php",
type: "POST",
crossDomain: true,
data: { username: user },
dataType:'json',
success: function(response){
if (response.status == 'success') {
alert(response.message);
document.getElementById('username').style.boxShadow = "none";
strong_flag_user = 1;
}
else if (response.status == 'error') {
alert(response.message);
navigator.notification.alert("This username is already taken! Please use another one!", null, 'Username', 'Okay');
document.getElementById('username').style.boxShadow = "0 0 7px #f00";
navigator.notification.vibrate(500);
strong_flag_user = 0;
//window.location("main.html");
}
else {
alert("error");
strong_flag_user = 0;
}
},
error: function(error){ //function(error){
alert(JSON.stringify(error));
strong_flag_user = 0;
//window.location = "main.html";
}
});
}
//>5 characters, 1 upper case, at least 1 lower case, at least 1 numerical character, at least 1 special character
var passExp = /(?=^.{6,15}$)((?=.*\d)(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[^A-Za-z0-9])(?=.*[a-z])|(?=.*[^A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[A-Z])(?=.*[^A-Za-z0-9]))^.*/;
var strong_flag_pass = 0;
if (!(password.value.match(passExp))) {
$("#password").focus();
document.getElementById('password').style.boxShadow = "0 0 7px #f00";
navigator.notification.alert("Please enter a strong Password! It has to have at least: 6 characters, 1 upper case, 1 lower case, 1 numerical character and 1 special character!", null, 'Password', 'Okay');
navigator.notification.vibrate(500);
strong_flag_pass = 0;
}
else{
document.getElementById('password').style.boxShadow = "none";
strong_flag_pass = 1;
}
var emailExp = /^.+#[^\.].*\.[a-z]{2,}$/;
var strong_flag_email = 0;
if (!(email.value.match(emailExp))) {
$("#email").focus();
document.getElementById('email').style.boxShadow = "0 0 7px #f00";
navigator.notification.alert("Please enter a correct Email!", null, 'Email', 'Okay');
navigator.notification.vibrate(500);
strong_flag_email = 0;
}
else {
document.getElementById('email').style.boxShadow = "none";
strong_flag_email = 1;
}
var gender;
if (document.getElementById("gender").value == "female")
gender = 'F';
else
gender = 'M';
var about_you = document.getElementById("about_you").value;
var age = document.getElementById("radio-choice").value;
if (document.getElementById('radio-choice-1').checked) {
age = document.getElementById('radio-choice-1').value;
}
else if (document.getElementById('radio-choice-2').checked) {
age = document.getElementById('radio-choice-2').value;
}
else if (document.getElementById('radio-choice-3').checked) {
age = document.getElementById('radio-choice-3').value;
}
else if (document.getElementById('radio-choice-4').checked) {
age = document.getElementById('radio-choice-4').value;
}
else if (document.getElementById('radio-choice-5').checked) {
age = document.getElementById('radio-choice-5').value;
}
else if (document.getElementById('radio-choice-6').checked) {
age = document.getElementById('radio-choice-6').value;
}
if (strong_flag_user == 1 && strong_flag_pass == 1 && strong_flag_email == 1){
//add to db
register_db(email.value, password.value, username.value, gender, about_you, age);
}
}
function register_db(em, pass, user, gend, about, ag) {
$.ajax({
url: "http://www.guidemeforall.freeiz.com/phps/sign-up.php",
type: "POST",
crossDomain: true,
data: { username:user, password:pass, email:em, gender:gend, about_you:about, age:ag },
dataType:'json',
success: function(data)
{
if (data.status == 'success')
{
alert("Success!");
}
else if (data.status == 'error')
{
alert("Failure!");
}
}
});
}
This is my PHP file in which I check if the username already exists (Username = Primary Key):
<?php
header('Content-type: application/json');
header('Access-Control-Allow-Origin: *');
//require_once('../database_config.php');
$server = "my***.000webhost.com";
$database = "a1****37_guideme";
$username = "a1****37_guideme";
$password = "*****";
$con = mysql_connect($server, $username, $password);
// if($con) { //echo "Connected to database!"; }
// else { //echo "Could not connect!"; }
mysql_select_db($database, $con);
$topost = file_get_contents('php://input');
$thedata = json_decode($topost, true);
$username = $thedata['username'];
//var_dump($_POST);
//if (empty($username)) {
// echo 'The username is either 0, empty, or not set at all';
//}
$sql = "SELECT COUNT(*) as Count FROM `user` WHERE `username`='$username'";
$result= mysql_query($sql, $con);
$rows = mysql_fetch_array($result);
$count = $rows['Count'];
if (!$result) {
die('Error: ' . mysql_error());
//$response_array['status'] = 'error';
//echo json_encode($response_array);
}
else {
if ($count == 0) {
echo json_encode(array('status' => 'success','message'=> 'There is no such username'));
//$response_array['status'] = 'success';
//echo json_encode($response_array);
}
else
{
echo json_encode(array('status' => 'error','message'=> 'The username already exists'));
//$response_array['status'] = 'error';
//echo json_encode($response_array);
}
}
mysql_close($con);
?>
And this is the PHP file in which I tried to insert the new entry in my database ( my credentials are for sure correct):
<?php
header('Content-type: application/json');
header('Access-Control-Allow-Origin: *');
//require_once('database_config.php');
$server = "mys****.000webhost.com";
$database = "a***37_guideme";
$username = "a***37_guideme";
$password = "******";
$con = mysql_connect($server, $username, $password);
// if($con) { //echo "Connected to database!"; }
// else { //echo "Could not connect!"; }
mysql_select_db($database, $con);
$topost = file_get_contents('php://input');
$thedata = json_decode($topost, true);
$username = $thedata['username'];
$password = $thedata['password'];
$email = $thedata['email'];
$gender = $thedata['gender'];
$age = $thedata['age'];
$about_you = $thedata['about_you'];
$sql = "INSERT INTO user (username, password, email, gender, age, about_you) ";
$sql .= "VALUES ('$username', '$password', '$email', '$gender', '$age', '$about_you')";
if (!mysql_query($sql, $con)) {
die('Error: ' . mysql_error());
// $response_array['status'] = 'error';
// echo json_encode($response_array);
}
else {
echo json_encode(array('status' => 'success','message'=> 'No problem'));
// $response_array['status'] = 'success';
// echo json_encode($response_array);
}
mysql_close($con);
?>

My problem solved by changing the way I get the data in my PHP to -> $user = $_POST['username']; instead of the way with Json (json_decode e.t.c.).