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<?php $string = 'PT3M'; $pattern = '/[0-9]+/i'; $replacement = '#'; echo preg_replace($pattern, $replacement, $string); $pattern = '/[0-9]+/i'; $replacement = '/[0-9]+/i'; echo preg_replace($pattern, $replacement, $string);
Output for git.master, git.master_jit, rfc.property-hooks
PT#MPT/[0-9]+/iM

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