[PHP]co oznacza ten zapis w var_dumpie? Opcje

[koszykarze]

co oznacza public 0 => w poniższym?
indeks 0 tablicy? ale co public?

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object(ArrayIterator)[3]
  public 0 => 
    array (size=2)
      'name' => string 'P' (length=1)
      'gender' => string 'F' (length=1)
  public 1 => 
    array (size=2)
      'name' => string 'A' (length=1)
      'gender' => string 'M' (length=1)
  public 2 => 
    array (size=2)
      'name' => string 'W' (length=1)
      'gender' => string 'F' (length=1)
  public 3 => 
    array (size=2)
      'name' => string 'E' (length=1)
      'gender' => string 'M' (length=1)
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