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<?php $lookup = ['neither', 'upper', 'lower']; $tests = ['A', 'z', '+', '0', 'ǻ', 'Ͱ', '']; foreach ($tests as $test) { preg_match('~(\p{Lu})|(\p{Ll})|~u', $test, $out); printf("%s, %s\n", $test, $lookup[array_key_last($out)]); //printf("%s, %s\n", $test, $lookup[count($out) - 1]); }
Output for git.master, git.master_jit, rfc.property-hooks
A, upper z, lower +, neither 0, neither ǻ, lower Ͱ, upper , neither

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