How to check if one array elements entirely exists in another array in php [duplicate]

Answer 1

I didn't try with complex array but comparing work for me

var_dump(array(1,2,3,4,5,6,7,8,9) === array(4,6,9));
var_dump(array(1,2,3,4,5,6,7,8,9) === array(1,2,3,4,5,6,7,8,9));