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<?php $eventDates = []; $startingDate = "2020-10-20"; $daysBetween = ["2020-10-21", "2020-10-22", "2020-10-23"]; $endingDate = "2020-10-24"; $eventDates[5] = [ "startingDate" => $startingDate, "daysBetween" => $daysBetween, "endingDate" => $endingDate, ]; $startingDate = "2020-09-20"; $daysBetween = ["2020-09-21", "2020-09-22", "2020-09-23"]; $endingDate = "2020-09-24"; $eventDates[10] = [ "startingDate" => $startingDate, "daysBetween" => $daysBetween, "endingDate" => $endingDate, ]; $searchFor = '2020-09-20'; $result = array_filter($eventDates, function($v) use ($searchFor) { return ($v['startingDate'] ?? null) == $searchFor; }); print_r($result);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [10] => Array ( [startingDate] => 2020-09-20 [daysBetween] => Array ( [0] => 2020-09-21 [1] => 2020-09-22 [2] => 2020-09-23 ) [endingDate] => 2020-09-24 ) )

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