Bu neden çalışmıyor?

  $stringhaha ="     1 => General,
      2 => Business,
      3 => Entertainment,
      4 => Health,
      5 => Politics,
      6 => Sci/Tech,
      7 => Sports,
      8 => News";

$all_categories = array($stringhaha);

print_r($all_categories);

(1 öğe ile bir dizi verir.)

While this works: If I include the variable content like this it will create properly an array with 8 items:

$all_categories = array(1 => General,
      2 => Business,
      3 => Entertainment,
      4 => Health,
      5 => Politics,
      6 => Sci/Tech,
      7 => Sports,
      8 => News);

print_r($all_categories);