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<?php $strings = [ "123A.478", "123.48", "123AX", "--123.46", "123A-.46", "-123--.46", "A-123-.46" ]; $pattern = '/^[^\d\s]+(?=-)|[^\d\s.]+(?!\d)/'; foreach ($strings as $str) { echo preg_replace($pattern, "", $str) . PHP_EOL; }
Output for git.master, git.master_jit, rfc.property-hooks
123.478 123.48 123 -123.46 123.46 -123.46 -123.46

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