I have two array in php likes this :
$a = [ 1 => [ 0 => 10, 1 => 1 ] ] and $b = [ 1 => [ 0 => 15, 1 => 3 ] ]
I have to make a union of these two arrays that resultant array should be like this :
$r = [ 1 => [ 0 => 10, 1 => 1 ], 1 => [ 0 => 15, 1 => 3 ] ]
Please give me idea how can i achieve this ..
Thanks in advance !!