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<?php $m = 'm'; $y = 'y'; echo preg_replace('/get_|_csv/ig', '', 'get_invoices_and_revenue_csv') . $m . $y . '.csv';
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_replace(): Unknown modifier 'g' in /in/JiTp2 on line 4 my.csv

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