title: How to join several arrays in PHP?
body: <p>I have this arrays:
  Array ( [0] => 1 ) Array ( [0] => 1) Array ( [0] => 1 )</p>
  
  <p>I want join to one array and result equal :
  Array ( [0] => 1 , [1] => 1 , [2] => 1 )</p>