PHP Search $keyword results at the same time equal to another result

PHP Search $keyword Results equal to another result
Php+mysql For example I want to search for keywords $keyword for 25*50 results in both 25*50 and 50*25, and then continue searching 25*50*2.5 results also show 50*25*2.5 results. (25*50*1.1 to 25*50*4.75 later)
What kind of judgment or method is required for PHP.
------To solve the idea----------------------
That's what you might want.

$key = ' 20*50*30 '; $arr = explode (' * ', $key);p Rint_r (arrangement ($arr));//Arrange arrangementfunction arrangement ($arr = Array (), $res = ') {  if (! Is_array ($arr)) $arr = Str_split ($arr);  if (empty ($arr)) $array [] = $res;  else foreach ($arr as $k = + $v) {    unset ($arr [$k]);    foreach (Arrangement ($arr, Trim ("$res * $v", ' * ')) as $t) $array [] = $t;    $arr [$k]    = $v;  }  return  $array;}

Array (    [0] = 20*50*30    [1] = 20*30*50    [2] = 50*30*20    [3] = = 50*20*30    [4] = = 30*20*    [5] = 30*50*20)

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