php - convert more arrays into single array

Question

Convert these array into one array

Array ( [0] => 10 ) Array ( [0] => 17 ) Array ( [0] => 17 ) Array ( [0] => 15 )

I want an output like this:

Array ( [0] => 10 ,[1] => 17,[2] => 17,[3] => 15)

Answer 1

$a=array(10);$b=array(17);$c=array(17);$d=array(15);

print_r(array_merge($a,$b,$c,$d));

//Array([0]=>10 [1]=>17 [2]=>17 [3]=>15)