PHP MYSQL query won't work in PHP but works in PHPMyAdmin

I have a MYSQl query which successfully runs in PHPMyAdmin. However,
when trying to store it as a string in a PHP variable, and then using the my_sqli query,
it gives me a "boolean false". What can I do to get this working? I have a feeling it
might have to do with some of the sequences of characters in the query itself that are
conflicting with the string standards in PHP.

The PHP code:

$query =
            
"SET @pro_today = (SELECT count(*)
FROM
            `subscriptions`
WHERE CAST(created_at as DATE) = CAST(now() as
            DATE)
AND cancelled = 0
AND subscription_id != ''
AND plan
            = 'pro');


SET @pro_this_week = (SELECT count(*)
            
FROM `subscriptions` 
WHERE WEEKOFYEAR(created_at)=
            WEEKOFYEAR(NOW())
AND cancelled = 0
AND subscription_id !=
            ''
AND plan = 'pro');

SET @pro_this_month =
            (
SELECT count(*)

FROM `subscriptions`
WHERE
            MONTH(created_at)= MONTH(NOW())
AND cancelled =0
AND subscription_id
            !=''
AND plan = 'pro');

SET @single_event_today = (SELECT
            count(*)
FROM `subscriptions`
WHERE CAST(created_at as DATE) =
            CAST(now() as DATE)
AND cancelled = 0

AND subscription_id
            != ''
AND plan = 'single-event');

SET
            @single_event_this_week = 
(SELECT count(*) 
FROM `subscriptions`
            
WHERE WEEKOFYEAR(created_at)= WEEKOFYEAR(NOW())
AND cancelled =
            0
AND subscription_id != ''
AND plan =
            'single-event');


SET @single_event_this_month = (SELECT
            count(*) 
FROM `subscriptions` 
WHERE MONTH(created_at)=
            MONTH(NOW())
AND cancelled = 0
AND subscription_id !=
            ''
AND plan = 'single-event');

UPDATE
            statistics
SET statistics.single_event_today =
            @single_event_today,

statistics.single_event_this_week =
            @single_event_this_week,
statistics.single_event_this_month =
            @single_event_this_month,

statistics.premier_today =
            @pro_today,
statistics.premier_this_week =
            @pro_this_week,
statistics.premier_this_month =
            @pro_this_month,

statistics.revenue_today = ((@pro_today * 8 ) +
            (@single_event_today * 25)),
statistics.revenue_this_week = ((@pro_this_week *
            8)+(@single_event_this_week * 25)),
statistics.revenue_this_month =
            ((@pro_this_month * 8)+(@single_event_this_month *
            25));";


doQuery($query);

function
            doQuery($query)
{
 $con = mysqli_connect(//correct connection
            settings);

 if(mysqli_connect_errno())
 {
 echo
            "Failed to connect to MySQL : " . mysqli_connect_error();


            }

 $result = mysqli_query($con , $query);

            mysqli_close($con);

 if($result)
 {
 echo
            "Success";
 }
 else{


            var_dump($result);

            }
}

?>

Answer

Looks like you're trying to execute multiple
queries with a single mysqli_query();

href="http://php.net/manual/en/mysqli.quickstart.multiple-statement.php" rel="nofollow
noreferrer">http://php.net/manual/en/mysqli.quickstart.multiple-statement.php

Multiple statements or multi queries must be executed with

mysqli_multi_query().

And
a similar question here:
href="https://stackoverflow.com/questions/10924127/two-mysqli-queries">Two mysqli
queries

Just do this instead:

$result =
            mysqli_multi_query($con, $query);