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<?php $array[0] = ['krotki_klucz'=>0, 'dluuuuuugi_klucz'=>0, 'sreeedni_klucz'=>0];//pierwszy wymiar $array[1] = ['krotki_klucz'=>4, 'dluuuuuugi_klucz'=>4, 'sreeeedni_klucz'=>4];//drugi wymiar $array[3] = ['krotki_klucz'=>3, 'dluuuuuugi_klucz'=>3, 'sreeeedni_klucz'=>3];//trzeci wymiar $najdluzszy_klucz = ''; array_walk($array[0], function($value, $key){ global $najdluzszy_klucz; $najdluzszy_klucz = (strlen($key)>=strlen($najdluzszy_klucz))?$key:$najdluzszy_klucz; }); echo "Najdluzszy klucz to: $najdluzszy_klucz";
Output for rfc.property-hooks, git.master, git.master_jit
Najdluzszy klucz to: dluuuuuugi_klucz

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