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<?php $tests = [ "Bright vixens jump; dozy owl quack.", "zyra nymph, quid vex jock, fblg wt", "Amazingly few discotheques provide jukeboxes", "ANFZB ZIQBB SNYQ YWAHT", "pack my box with five dozen liquor jugs!!", "Mr Jock, TV quiz PhD, bags few lynx.", ]; $perfection = array_fill_keys(range(97, 122), 1); $non = $pan = $perf = 0; foreach ($tests as $test) { $counts = array_intersect_key( count_chars(strtolower($test), 1), $perfection ); // var_dump($perfection, '-', $counts, '==='); if ($perfection === $counts) { ++$perf; } elseif (count($counts) != 26) { ++$non; } else { ++$pan; } } var_dump($non, $pan, $perf);
Output for git.master, git.master_jit
int(3) int(2) int(1)

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