php专用数组排序类ArraySortUtil用法实例

本文实例讲述了php专用数组排序类ArraySortUtil用法。分享给大家供大家参考。具体如下：

** * ArraySortUtil is a array sort utility, you can extends the sorting engine. * * @version 0.1 * @package utility.sort */class ArraySortUtil{ static function uasort($unsort, $fields) {  if ( !is_array($unsort) || sizeof($unsort) <= 0 ) return $unsort;  $sorted = uasortEngine::uasort($unsort, $fields);  return $sorted; } static function multisort($unsort, $fields) {  if ( !is_array($unsort) || sizeof($unsort) <= 0 ) return $unsort;  $sorted = multisortEngine::multisort($unsort, $fields);  return $sorted; }}class multisortEngine{ static function multisort($unsort, $fields) {  $sorted = $unsort;  if (is_array($unsort))  {   $loadFields = array();   foreach($fields as $sortfield)   {    $loadFields["field"][] = array(        "name" => $sortfield["field"],        "order" => $sortfield["order"],        "nature" => $sortfield["nature"],        "caseSensitve" => $sortfield["caseSensitve"]    );    $loadFields["data"][$field["field"]] = array();   }   // Obtain a list of columns   foreach ($sorted as $key => $row) {    foreach($loadFields["field"] as $field) {     $value = $row[$field["name"]];     $loadFields["data"][$field["name"]][$key] = $value;    }   }   $parameters = array();   foreach($loadFields["field"] as $sortfield) {    $array_data = $loadFields["data"][$sortfield["name"]];    $caseSensitve = ( $sortfield["caseSensitve"] == null ) ? $sortfield["caseSensitve"] : false;    if (!$caseSensitve) $array_data = array_map('strtolower', $array_data);    $parameters[] = $array_data;    if ( $sortfield["order"] != null ) $parameters[] = ( $sortfield["order"] ) ? SORT_DESC : SORT_ASC;    if ( $sortfield["nature"] != null ) $parameters[] = ( $sortfield["nature"] ) ? SORT_REGULAR : SORT_STRING;   }   $parameters[] = &$sorted;   call_user_func_array("array_multisort", $parameters);  }  return $sorted; }}class uasortEngine{ static private $caseSensitve = false; static private $sortfields = array(); static private $sortorder = true; static private $nature = false; static private function uasort_callback(&$a, &$b) {  foreach(self::$sortfields as $sortfield)  {   $_field = $sortfield["field"];   $_order = isset($sortfield["order"]) ? $sortfield["order"] : self::$sortorder;   $_caseSensitve = isset($sortfield["caseSensitve"]) ? $sortfield["caseSensitve"] : self::$caseSensitve;   $_nature = isset($sortfield["nature"]) ? $sortfield["nature"] : self::$nature;   if ($_field != "")   {    $retval = 0;    if ($_nature)    {     if ($_caseSensitve)     {      $compare = strnatcmp($a[$_field], $b[$_field]);     }     else     {      $compare = strnatcasecmp($a[$_field], $b[$_field]);     }    }    else    {     if ($_caseSensitve)     {      $compare = strcmp($a[$_field], $b[$_field]);     }     else     {      $compare = strcasecmp($a[$_field], $b[$_field]);     }    }    if ($compare !== 0 && !$_order) $compare = ($compare > 0) ? -1 : 1;   }   if ($compare !== 0) break;  }  return $compare; } static function uasort($unsort, $fields) {  self::$sortfields = $fields;  $sorted = $unsort;  uasort($sorted, array('uasortEngine', 'uasort_callback'));  return $sorted; }}