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run code in 200+ php & hhvm versions
Bugs & Features
<?php $m = 'm'; $y = 'y'; echo preg_replace('/get_|_csv/i', '', 'get_invoices_and_revenue_csv') . $m . $y . '.csv';
based on JiTp2
Output for 4.3.0 - 7.2.0
invoices_and_revenuemy.csv