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<?php $tests = ['A', 'z', '+', '0', '8', '*', ' ']; foreach ($tests as $test) { echo "\n{$test}: "; if (ctype_alpha($test)) { echo 'letter'; } elseif (ctype_digit($test)) { echo 'number'; } elseif (ctype_space($test)) { echo 'space'; } else { echo 'symbol'; } }
Output for git.master, git.master_jit, rfc.property-hooks
A: letter z: letter +: symbol 0: number 8: number *: symbol : space

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