php - Counting similarity of arrays inside array -


i have problem pretty unsure how solve this.

given arrays in such format:

$array01 = array(     0 => array("hallo", "welt", "du", "ich"),     1 => array("mag", "dich"),     2 => array("nicht", "haha", "huhu") );  $array02 = array(     0 => array("haha", "welt", "dich"),     1 => array("hallo", "mag", "nicht"),     2 => array("du", "ich", "huhu") );

now want calculate kind of similarity value of these arrays. these arrays result of clustering terms according meaning.

what want know how similar these terms clustered 2 different users ($array01 = user1, $array02 = user2). 0,1,2 clusters (they don't have same length)

edit: try describe little bit further: every array result of user clustering terms (hallo, welt, du, ich...) according meaning. every sub-array 1 cluster defined user. problem user not restricted in places term or whole cluster, cannot compare $array01[0] $array02[0]. guess need compare sub-arrays terms in common. every user has cluster terms though.

so example:

$array01[0] , $array02[2]. have 2 terms in common: "du" , "ich" -> +1

the other terms have no clear clustering, guess example yield 1, because clusterings not similar.

how this?

get_similar_items

code:

<?php  $array01 = array(     0 => array("hallo", "welt", "du", "ich"),     1 => array("mag", "dich"),     2 => array("nicht", "haha", "huhu") );  $array02 = array(     0 => array("haha", "welt", "dich"),     1 => array("hallo", "mag", "nicht"),     2 => array("du", "ich", "huhu") );  function get_similar_items() {     $arrs = func_get_args();     foreach ($arrs &$arr) {         while (list($k, $v) = each($arr)) {             if (is_array($v)) {                 array_splice($arr,$k,1,$v);                 next($arr);             }         }     }     return call_user_func_array('array_intersect',$arrs); }  print_r(get_similar_items($array01,$array02));

result:

array (     [0] => hallo     [1] => welt     [2] => du     [3] => ich     [4] => mag     [5] => dich     [6] => nicht     [7] => haha     [8] => huhu )

get_similar_items_count

code:

<?php  $array01 = array(     0 => array("hallo", "welt", "du", "ich"),     1 => array("mag", "dich"),     2 => array("nicht", "haha", "huhu") );  $array02 = array(     0 => array("haha", "welt", "dich"),     1 => array("hallo", "mag", "nicht"),     2 => array("du", "ich", "huhu") );  $array03 = array(     0 => array("haha", "haha", "dich"),     1 => array("dich", "mag", "mag"),     2 => array("du", "ich", "haha") );  function get_similar_items_count() {     $arrs = func_get_args();     foreach ($arrs &$arr) {         while (list($k, $v) = each($arr)) {             if (is_array($v)) {                 array_splice($arr,$k,1,$v);                 next($arr);             }         }     }     unset($arr);     $counts = array();     foreach ($arrs $arr) {         foreach (array_count_values($arr) $k => $v) {             if ($v) {                 if (!isset($counts[$k])) {                     $counts[$k]  = $v;                 } else {                     $counts[$k] += $v;                 }             }                         }     }     return $counts; }  print_r(get_similar_items_count($array01,$array02,$array03));

result:

array (     [hallo] => 2     [welt] => 2     [du] => 3     [ich] => 3     [mag] => 4     [dich] => 4     [nicht] => 2     [haha] => 5     [huhu] => 2 )

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