unset array element if length is less - php

Question

I've following array:
Array
(
[1] => Array
(
[team1_id] => 2
[agegroup_id] => 18
[team2_id] => 3
[team_ground] => Adeilade
[matchdate] => 2016-04-01
[matchtime] => 9:00 AM
)
[2] => Array
(
[team1_id] => 3
[agegroup_id] => 18
[team2_id] => 2
[team_ground] => Adeilade
[matchdate] => 2016-04-13
[matchtime] => 10:00 AM
)
[3] => Array
(
[team1_id] => 2
[agegroup_id] => 18
[team2_id] => 3
[team_ground] => Adeilade
[matchdate] => 2016-04-20
[matchtime] => 2:00 PM
)
[4] => Array
(
[team1_id] => 3
[agegroup_id] => 18
[team2_id] => 2
[team_ground] => Adeilade
[matchdate] => 04/07/2016
[matchtime] => 5:00 PM
)
[6] => Array
(
[team1_id] => 9
[agegroup_id] => 36
[team2_id] => 4
[team_ground] => Motera Stadium
[matchdate] => 2016-04-13
[matchtime] => 9:00 AM
)
[7] => Array
(
[team1_id] => 4
[agegroup_id] => 36
[team2_id] => 9
[team_ground] => Motera Stadium
[matchdate] => 2016-04-13
[matchtime] => 5:00 PM
)
[9] => Array
(
[team1_id] => 1
[agegroup_id] => 37
[team2_id] => 8
[team_ground] => Eden Garden
[matchdate] => 2016-04-18
[matchtime] => 7:00 PM
)
[10] => Array
(
[team1_id] => 8
[agegroup_id] => 37
[team2_id] => 1
[team_ground] => Eden Garden
[matchdate] => 2016-04-25
[matchtime] => 8:00 PM
)
[11] => Array
(
[team1_id] => 1
[agegroup_id] => 37
[team2_id] => 8
[team_ground] => Eden Garden
[matchdate] => 04/26/2016
[matchtime] => 8:00 PM
)
[0] => Array
(
[agegroup_id] => 18
)
[5] => Array
(
[agegroup_id] => 36
)
[8] => Array
(
[agegroup_id] => 37
)
)
If array is having only one element then I've to unset it. In this case I want to unset array index 0,5,8 in PHP. How to unset the array index when it is having less elements?

Answer 1

You can simply use array_filter over here as
$result = array_filter($your_array,function($v){ return count($v) > 1;});
print_r($result);

Answer 2

You can also use a simple foreach:
foreach ($array as $key => $value)
{
if(sizeOf($array[$key]) < 2)
unset($array[$key]);
}
Here is a working DEMO