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<?php function datediffInWeeks($date1, $date2) { var_dump(date('W', date2) - date('W', date1)); if($date1 > $date2) return datediffInWeeks($date2, $date1); $first = DateTime::createFromFormat('m/d/Y', $date1); $second = DateTime::createFromFormat('m/d/Y', $date2); return floor($first->diff($second)->days/7) + 1; } var_dump(datediffInWeeks('11/11/2016', '11/13/2016'));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "date2" in /in/dNGPm:4 Stack trace: #0 /in/dNGPm(12): datediffInWeeks('11/11/2016', '11/13/2016') #1 {main} thrown in /in/dNGPm on line 4
Process exited with code 255.

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