Question

Hello I’m getting results in format

location1 2 4
location2 3 2
location3 0 0
location1 1 0

How can I trim results so that row returning 0 and 0 is not displayed ? thank you

……………..

Here is Mysql query, I don’t know how to trim it from MySQL so I thought using PHP ..

    SELECT hotelas.name, hotelas.address, hotelas.city, hotelas.country, hotelas.hotel_id 
AS hotelid, 
COUNT( DISTINCT apart.apartman_id ) AS number_of_free_ap, 
COUNT( DISTINCT room.apartman_id ) AS num_of_free_rooms
    FROM hotel AS hotelas
    LEFT JOIN apartman AS apart ON ( apart.apartman_hotel = hotelas.hotel_id
    AND apart.occupied =0
    AND apart.what =1 )
    LEFT JOIN apartman AS room ON ( room.apartman_hotel = hotelas.hotel_id
    AND room.occupied =0
    AND room.what =0 )
    GROUP BY hotelas.hotel_id

TABLE field what, 0 – for room, 1 – apartment

So I get a few columns among which the most important ones are count columns , free rooms and free apartments. So I have a test hotel which is full 0 rooms and 0 apartments and I want is removed from this list where all other hotels have at least one room or one apartment available.

Answer 1

if you are querying you database to get this information and you can change the query, that would be the best place for it.

SELECT *
FROM myTable
WHERE
    firstColumn != 0
OR
    secondColumn != 0

If you are getting this in PHP from some other source (CSV or something), or you don’t have control over the query, use array_filter():

// i'm assuming each line in your example is an array of values
$myArray = array_filter($myArray, 'noDoubleZeroes');

function noDoubleZeroes($line) {
    return $line[1] != 0 || $line[2] != 0;
}