Get 2 variables from Ajax call in php - php

Question

I am trying to get 2 variables from ajax in php. With one variable its working fine. New to ajax, so I am not sure how will I include a second variable. As of now I am getting the msg_count with out any issues. My ajax script is below:
function addmsg(type, msg) {
$('#msg_count').html(msg);
}
function waitForMsg() {
$.ajax({
type: "GET",
url: "notification/select.php",
async: true,
cache: false,
timeout: 50000,
success: function(data) {
addmsg("new", data);
setTimeout(
waitForMsg,
1000
);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
addmsg("error", textStatus + " (" + errorThrown + ")");
setTimeout(
waitForMsg,
15000);
}
});
};
$(document).ready(function() {
waitForMsg();
});
select.php script is below:
$sql = "SELECT * from notification where tousername='$tousername' and isread = 0";
$result = $con->query($sql);
$row = $result->fetch_assoc();
$count = $result->num_rows;
echo $count;
$not=$row['notification'];
echo $not;
I am able to pass the $count properly. I need to pass $not also to the ajax. How will I do that?
My edited php script to use it with a WHILE Loop is as follows:
$result= mysqli_query($con,"SELECT * from notification where tousername='$tousername' and isread = 0");
while($row = mysqli_fetch_array($result)) {
$count = $result->num_rows;
$not=$row['notification_msg'];
$res=[];
$res['count'] = $count;
$res['not'] = $not;
echo json_encode($res);

Answer 1

Like #guradio said, set dataType : 'json' inside ajax properties and json_encode data that you want to pass into success block like following code :
$.ajax({
....
....
dataType : 'json', // added here
success : function ( data ) {
// access data from response
// access it using data.count, data.not
console.log(data)
// just called like original code
// passed on result `data`
addmsg( type, data );
// the rest of the code
}
...
});
function addmsg(type, msg){
// access it using msg.count, msg.not
console.log(msg.count)
$('#msg_count').html(msg);
}
In Php :
$sql = "SELECT * from notification where tousername='$tousername' and isread = 0";
$result = $con->query($sql);
$row = $result->fetch_assoc();
$count = $result->num_rows;
$not=$row['notification'];
// added here
echo json_encode( array( 'count' => $count, 'not' => $not ) );
Edited : This depend on how you want to store the data and populate it
// defined container outside loop
$res = [];
while($row = mysqli_fetch_array($result)) {
$count = $result->num_rows;
$not=$row['notification_msg'];
array_push( $res, array( 'count' => $count, 'not' => $not ) );
}
echo json_encode($res);
Suggestion(credited to guradio):
Must be noted that, there is not necessary to add async : true inside ajax properties as the default behavior of Ajax is asynchronous and the default value of that is TRUE unless you wanna it to be false, but not recommended.