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run code in 150+ php & hhvm versions
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<?php $discount = 33; $sale_end = 2014-01-30; echo sprintf('%d'.%.' OFF Ends %s', $discount, $sale_end);
Output for 5.3.0 - 5.5.8
Parse error: syntax error, unexpected '%' in /in/lpaBJ on line 5
Process exited with code 255.