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<?php function toggleDigitAlpha ($val) { $lookup = range("A", "Z"); if (ctype_alpha((string)$val)) { $lookup = array_flip($lookup); } return strtr($val, $lookup); } $string = "ABYZ"; echo "$string\n"; $string = toggleDigitAlpha($string); echo "$string\n"; $string = toggleDigitAlpha($string); echo "$string\n"; $string = toggleDigitAlpha($string); echo "$string";
Output for git.master_jit, git.master, rfc.property-hooks
ABYZ 012425 AMEZ 012425

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