Flattening refers to either reducing a multi-dimensional array to a single dimension or to reducing a class and class methods to handle based function calls.
$arr[] = array('A','B');
$arr[] = array('C','B');
...
I need to get the merged result of all sub array of $arr .And for duplicated entries,should fetch only one.
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J'ai une simple requête sur une table, qui renvoie des résultats comme les suivants: id concatenation
2702 5,16,17,40:31,14,3,1
2703 23,23,34:4,5,6
2704 1:14
...
