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<?php $string = "blah 2015 yar"; $pos = strpos($string, "20"); $year = substr($string, $pos, 4); echo $year; $end_year = "12/31/" . $year; $end_time = new DateTime($end_year); $start_time = new DateTime(); $diff = $end_time ->diff($start_time); ?>
Output for git.master, git.master_jit, rfc.property-hooks
2015

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