Re: array_intersect question

On Tue, Dec 2, 2008 at 11:06 PM, Andrej Kastrin <andrej.kastrin@gmail.com>wrote: > It works like a charm. > > Thanks, Andrej > > Tim | iHostNZ wrote: > >> I know there must be a more elegant way with array_reduce or something, >> but >> I would simply write a function called >> >> function array_intersect_m($m_array) { >> $intersection = $m_array[0]; >> for ($i=1; $i < count($m_array); $i++) { >> $intersection = array_intersect($m_array[$i], $intersection); >> } >> return $intersection; >> } >> >> and put that into my library. O and while i'm at it, the array_reduce way >> would prob be: >> $m_array = >> >> array(array("green","red","blue"),array("green","yellow","red"),array("green","red","purple"),array("green","red","yellow")); >> array_reduce($m_array, 'array_intersect'); >> > I tried this now with array_reduce and it didn't work as i expected. Can anyone tell me why? It says argument #1 to array_intersect is not an array, although i have an array of arrays. Also tried providing $arrayOfArrays[0] as the third parameter to array_reduce which had the same error. Thanks, Tim