How to check if variable is array?… or something array-like

Question

I want to use a foreach loop with a variable, but this variable can be many different types, NULL for example.

So before foreach

Answer 1

Functions

 0) {
    if (!isset($array[--$i])) {
      return true;
    }
  }
  return false;
}

Example

 'bar' ];

var_dump(isAssociative($arr));
# bool(false)

var_dump(isAssociative($obj));
# bool(true)

var_dump(isArray($obj));
# bool(false)

var_dump(isArray($arr));
# bool(true)