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<?php $itinerary = array (array('portName'=>'Day At Sea'), array('portName'=>'Moscow')); $badPorts = array('At Sea', 'Day At Sea', 'Cruising The Mediterranean Sea'); $image = ''; $image .= implode(',', array_reduce($itinerary, function ($result, $item) use (&$index, $badPorts) { if(!in_array($item['portName'], $badPorts)) $result[$index] = $item['portName']; $index++; return $result; }, array())); $arr = array('a','b','c','d'); $assoc_arr = array_reduce($arr, function ($result, $item) { $result[$item] = (($item == 'a') || ($item == 'c')) ? 'yes' : 'no'; return $result; }, array()); var_dump($assoc_arr);

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