PHP weight calculation method code sharing

  Weight calculation, a little modification can also be used for participle, word frequency statistics, full-text and spam detection, etc.

The code is as follows: <?php/* Vim:set expandtab tabstop=4 shiftwidth=4: *//+---------------------------------------------------- --------------------// name      :   weight calculation               &NB Sp                         // description:   Minor Repair Change, can also be used for participle, word frequency statistics, full-text Search and garbage detection// date      :   2013/12/16 08:51   class Weight {    p rotected $aDict = Array (array ());     Protected $aItems = Array ();     protected $sLastRule;     Protected $aMatchs = Array ();     Protected $aShow = Array ();    private function init () { //Empty records matching table and output   unset ($this->ashow);         Public Function NewItems ($mItems) { //import new project   $this->aitems = (Is_array ($mItems))? $mItems: Array ($mItems );   $this->init (); &NBSP}    public function neWtable (array $aTable) {       //Import a new comparison table and generate a dictionary         foreach ($aTable as $iTable Key=> $sTableLine) {            $aTableLine = explode (', ', Str_replace (' | ', ', '), $sTableL INE);              $setter = function ($v, $k, $paraMeter) {      &NBSP ;         $K 1 = $paraMeter [0]; $oWeight = $paraMeter [1];                 $oWeight->gendict ($v, $k 1);            };             Array_walk ($aTableLine, $setter, Array ($iTableKey, $this));        }         $this->init (); &NBSP}       public Function getshow ($sRule = ' Max ') { //Get final display results         if (E Mpty ($this->aitems) | | Empty ($this->adict))             return array ();   If (Empty ($this->ashow) | | $sRule!= $this->slastrule)               return $this->genshow ($sRule);         return $this->ashow; &NBSP}       public Function genshow ($sRule) {        $aShow = array ();         $aMatchs = array ();   $getter = function ($v, $k, $oWeight) use (& $aShow, & $aMatchs, $sRule) {    $t = array_count_values ($oWeight->matchword ($v));             $aMatchs [] = $t;             switch ($sRule) {                case ' Max ':                     $aShow [$k] = Array_keys ($t, Max ($t));  &N Bsp                   break;            }  };   Array_walk ($this->aitems, $getter, $this);   $this->ashoW = $aShow;   $this->amatchs = $aMatchs;   return $aShow;     {      private Function gendict ($mWord, $iKey = ') {        $iInsertPo NIT = count ($this->adict);         $iCur = 0; Current node number         foreach (Str_split ($mWord) as $iChar) {            if ( Isset ($this->adict[$iCur] [$iChar]) {                $iCur = $this->adict[$ icur][$iChar];                 continue;                         $this->adict[$iInsertPonit] = arr Ay ();             $this->adict[$iCur] [$iChar] = $iInsertPonit;             $iCur = $iInsertPonit;             $iInsertPonit + +;        }         $this->adict[$iCur] [' ACC '] [] = $iKey;       }           function Matchword ($sLine) {& nbsp           $iCur = $iOffset = $iPosition = 0;             $sLine. = "";             $iLen = strlen ($sLine);             $aReturn = array ();             while ($iOffset < $iLen) {              &N Bsp $sChar = $sLine {$iOffset};                 if (isset ($this->adict[$iCur] [$sChar]) {      & nbsp             $iCur = $this->adict[$iCur] [$sChar];                     if (isset ($this->adict[$iCur] [' ACC ']) {  &N Bsp                     $aReturn = Array_merge ($aReturn, $this->adict[$iC Ur]['ACC ']);                           $iPosition = $iOffset + 1;                         $iCur = 0;                                   & nbsp else {                    $iCur = 0         &NBS P           $iOffset = $iPosition;                     $iPosition = $iOffset + 1;                                 + + $iOffs Et                         return $aReturn;        }}  ?>       External invocation example   code is as follows: $aItems = Array (    ' chin Aisbig ',   &NBSP ' Whichisnot ',     ' totalyrightforme ',); $aTable = Array (    ' China,is|small ',     ' China,big|me ',     ' China,is|big,which|not,me ',     ' totaly|right,for,me ',);   $oWeight = new Ttrie; $oWeight->newitems ($aItems); $aResult = $oWeight->newtable ($aTable);