mam tablice np. w postaci:
1
=> array('user' => 'Bob', 'age' => '6', 'comment' => 'I like your site!'), 2
=> array('user' => 'George', 'age' => '11', 'comment' => 'I like your site more than he does!'), 3
=> array('user' => 'Tom', 'age' => '9', 'comment' => 'I like your site, but mine\'s better.'), 4
=> array('user' => 'Alex', 'age' => '5', 'comment' => 'This site is awful. Mine is MUCH better.'), 5
=> array('user' => 'Admin', 'age' => '16', 'comment' => 'Stop insulting month!!!'), 6
=> array('user' => 'Harry', 'age' => '26', 'comment' => 'Woof!'),);
potrzebuje zliczyc ilosc indeksów, czyli 'user' + 'age' + 'comment', co daje w sumie 3. czy jest jakaś funkcja.