sort mutlidimensional array with certain values always at the last

[rupam_jaiswal]

Hi,

Please excuse if similar issue has been posted earlier,

my array is like this

newScore1 is Array(    [0] => Array        (            [scoreid] => 12            [compid] => 4            [name] => andrew            [score1] => 4            [score2] => 122            [score3] => 12            [score4] => DNF            [rank1] => 5        )    [1] => Array        (            [scoreid] => 15            [compid] => 4            [name] => Ed            [score1] => DNF            [score2] => DNF            [score3] => 34            [score4] => DNF            [rank1] => 0        )    [2] => Array        (            [scoreid] => 14            [compid] => 4            [name] => andy            [score1] => 34            [score2] => 21            [score3] => 34            [score4] => 34            [rank1] => 4        )    [3] => Array        (            [scoreid] => 13            [compid] => 4            [name] => crusty            [score1] => 1            [score2] => 0            [score3] => 34            [score4] => 0            [rank1] => T2        )    [4] => Array        (            [scoreid] => 10            [compid] => 4            [name] => larry g            [score1] => 1            [score2] => 1            [score3] => 23            [score4] => 34            [rank1] => T2        )    [5] => Array        (            [scoreid] => 11            [compid] => 4            [name] => alex            [score1] => 0            [score2] => 33            [score3] => 0            [score4] => 44            [rank1] => 0        ))

I have to sort array with score1 values in ascending or descending order but if the value is 0 and DNF then it should always be at the bottom.

eg

priority_array = (0,'DNF')1) ascending ordernewScore1 is Array(    [3] => Array        (            [scoreid] => 13            [compid] => 4            [name] => crusty            [score1] => 1            [score2] => 0            [score3] => 34            [score4] => 0            [rank1] => T2        )    [4] => Array        (            [scoreid] => 10            [compid] => 4            [name] => larry g            [score1] => 1            [score2] => 1            [score3] => 23            [score4] => 34            [rank1] => T2        )    [0] => Array        (            [scoreid] => 12            [compid] => 4            [name] => andrew            [score1] => 4            [score2] => 122            [score3] => 12            [score4] => DNF            [rank1] => 5        )    [2] => Array        (            [scoreid] => 14            [compid] => 4            [name] => andy            [score1] => 34            [score2] => 21            [score3] => 34            [score4] => 34            [rank1] => 4        )    [1] => Array        (            [scoreid] => 15            [compid] => 4            [name] => Ed            [score1] => DNF            [score2] => DNF            [score3] => 34            [score4] => DNF            [rank1] => 0        )      [5] => Array        (            [scoreid] => 11            [compid] => 4            [name] => alex            [score1] => 0            [score2] => 33            [score3] => 0            [score4] => 44            [rank1] => 0        ))2) descending ordernewScore1 is Array(    [2] => Array        (            [scoreid] => 14            [compid] => 4            [name] => andy            [score1] => 34            [score2] => 21            [score3] => 34            [score4] => 34            [rank1] => 4        )    [0] => Array        (            [scoreid] => 12            [compid] => 4            [name] => andrew            [score1] => 4            [score2] => 122            [score3] => 12            [score4] => DNF            [rank1] => 5        )                [3] => Array        (            [scoreid] => 13            [compid] => 4            [name] => crusty            [score1] => 1            [score2] => 0            [score3] => 34            [score4] => 0            [rank1] => T2        )    [4] => Array        (            [scoreid] => 10            [compid] => 4            [name] => larry g            [score1] => 1            [score2] => 1            [score3] => 23            [score4] => 34            [rank1] => T2        )    [1] => Array        (            [scoreid] => 15            [compid] => 4            [name] => Ed            [score1] => DNF            [score2] => DNF            [score3] => 34            [score4] => DNF            [rank1] => 0        )    [5] => Array        (            [scoreid] => 11            [compid] => 4            [name] => alex            [score1] => 0            [score2] => 33            [score3] => 0            [score4] => 44            [rank1] => 0        ))

Thanks

[Barand]

You just need a couple of custom sort functions, one for ascending and the other for descending sorts

usort($newScore1, 'mysortAsc');
// or
// usort($newScore1, 'mysortDesc');

function mysortAsc($a, $b )
{
    if (in_array($a['score1'], array(0,'DNF'))) return 1;
    if (in_array($b['score1'], array(0,'DNF'))) return -1;
    return $a['score1'] - $b['score1'];
}

function mysortDesc($a, $b )
{
    if (in_array($a['score1'], array(0,'DNF'))) return 1;
    if (in_array($b['score1'], array(0,'DNF'))) return -1;
    return $b['score1'] - $a['score1'];
}

[rupam_jaiswal]

Thanks for your reply.

Regards