Merge 2 different tables without repeating values PHP - php

Question

I have 2 tables; the first one is user_in_event table
which here role can be regular, waiting for ack or moderator
and the second one is user table
Here the role can be regular or admin
I want to take the role from user_in_event table, based on the event_id and output all users info (beside user role) and output in a single JSON
I have tried to use LEFT JOIN
$query = "SELECT user_in_event.role, user_in_event.user_id, user.name, user.email, user.birthday, user.phone_number, user.address, user.image
FROM user LEFT JOIN user_in_event
ON user_in_event.event_id = '".$event_id."'
LIMIT $num_of_rows";
$result = mysqli_query($con,$query)
or die(mysqli_error($con));
// print_r($query);
while ($row = mysqli_fetch_assoc($result)) {
$response[] = $row;
}
header('Content-Type:Application/json');
echo json_encode($response);
but I got messed up data
[
{
"role": "moderator",
"user_id": "2",
"name": "ofir",
"email": "ofir#ofr.com",
"birthday": "08/12/2016",
"phone_number": "123",
"address": "yoqneam",
"image": "http://imgur.com/a/KslOW"
},
{
"role": "waiting for ack",
"user_id": "21",
"name": "ofir",
"email": "ofir#ofr.com",
"birthday": "08/12/2016",
"phone_number": "123",
"address": "yoqneam",
"image": "http://imgur.com/a/KslOW"
}
]
PS: I also tried to make 2 different queries and combine the JSON and user array_merge_recursive but I got 2 subs arrays instead of a single one

Answer 1

Please try :
SELECT user_in_event.role, user_in_event.user_id, user.name, user.email
FROM user
LEFT JOIN user_in_event ON user_in_event.user_id = user.user_id
WHERE user_in_event.event_id =25
LIMIT 0 , 30
Here event_id is static. run this query to your database and let me know.