how to get multiple values from JSON object - php

Question

i try to get results from my server. my application sending an array with users info and should insert that into the DB.
i get the following result:
{"flag":"failed","msg":"insert event","event id":"89","invitedusers":"[0508690186, 0508690187]","size_invited":1,"user_query":"SELECT id From users WHERE "}
and i would like to know how can i read the values in PHP under "invitedusers":"[0508690186, 0508690187]"
this is my php code:
<?php
/**
* Created by PhpStorm.
* User: matant
* Date: 9/17/2015
* Time: 2:56 PM
*/
include 'response_process.php';
class CreateEvent implements ResponseProcess {
public function dataProcess($dblink)
{
$output = array();
$sport = $_POST["sport_type"];
$date = date("Y-m-d",strtotime(str_replace('/','-',$_POST["date"])));
$s_time =$_POST["s_time"];
$e_time = $_POST["e_time"];
$lon = $_POST["lon"];
$lat = $_POST["lat"];
$event_type = $_POST["event_type"];
$max_p = $_POST["max_participants"];
$sched = $_POST["scheduled"];
$gen = $_POST["gender"];
$min_age = $_POST["minAge"];
$query = "SELECT * FROM event WHERE (event.longtitude = '$lon' AND event.latitude = '$lat')
AND event.event_date = '$date' And ((event.start_time BETWEEN '$s_time' AND '$e_time') OR (event.end_time BETWEEN '$s_time' AND '$e_time'))";
//AND (event.start_time = '$s_time' AND event.end_time = '$e_time')
//check time and place of the event
$result_q = mysqli_query($dblink,$query) or die (mysqli_error($dblink));
if(!$result_q)
{
$output["flag"]= "select failed";
$output["msg"] = $result_q;
return json_encode($output);
}
//case date and time are available
else {
$no_of_rows = mysqli_num_rows($result_q);
if ($no_of_rows < 1) {
$output["flag"] = "success";
$output["msg"] = "insert event";
$result = mysqli_query($dblink, "INSERT into event(kind_of_sport,event_date,start_time,end_time,longtitude,latitude,private,gender,min_age,max_participants,scheduled,event_status)
VALUES ('$sport','$date','$s_time','$e_time','$lon','$lat','$event_type','$gen','$min_age','$max_p','$sched','1')") or die (mysqli_error($dblink));
if (!$result) {
$output["flag"] = "failed to create event";
// return (json_encode($output));
}
if(isset($_POST["invitedUsers"])){
$query_id = "SELECT id From event WHERE event.event_date = '$date' and event.start_time = '$s_time' and event.end_time = '$e_time'";
$event_s_res = mysqli_query($dblink,$query_id) or die (mysqli_error($dblink));
if(!$event_s_res)
{
$output["flag"] = "failed";
$output["msg"] = "Event id not found";
}
else{
$row = mysqli_fetch_assoc($event_s_res);
$output["event id"]=$row["id"];
$json = json_decode($_POST["invitedUsers"]);
$invited_users = str_replace("\\","",$json);
$output["invitedusers"] = $_POST["invitedUsers"] ;
$output["size_invited"] = count($_POST["invitedUsers"]);
$query_users = "SELECT id From users WHERE ";
$i=0;
foreach($invited_users as $user) {
if ($i < (count($invited_users) - 1))
// add a space at end of this string
$query_users .= "users.mobile = '".$user[$i]."' or ";
else {
// and this one too
$query_users .= "users.mobile = '".$user[$i]."' ";
$output["users"][] = $user['mobile'];
}
$i++;
$output["index"]=$i;
}
$output["user_query"]= $query_users;
/* $event_user_s_res = mysqli_query($dblink,$query_users) or die (mysqli_error($dblink));
if(!$event_user_s_res)
{
$output["flag"] = "failed";
$output["msg"] = "user id not found";
}*/
}
$output["flag"] = "failed";
}
}
else {
$output["flag"] = "failed";
$output["msg"] = "Place is already occupied in this time";
}
}
return json_encode($output);
}
}

Answer 1

i resolve this issue by passing a JSON object from the application and using
json_decode method which convert it back.