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<?php $string = 'A10-53 c'; var_export( array_map( function($char) { if (ctype_alpha($char)) { return 'letter'; } elseif (ctype_digit($char)) { return 'number'; } elseif (ctype_space($char)) { return 'space'; } return 'symbol'; }, str_split($string) ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'letter', 1 => 'number', 2 => 'number', 3 => 'symbol', 4 => 'number', 5 => 'number', 6 => 'space', 7 => 'letter', )

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