多维数组排序

//多维数组排序

protected function sortArrByOneField(&$array,$field,$desc = true){

$fieldArr = array();

foreach ($array as $k => $v) {

$fieldArr[$k] = (float)$v[$field];

}

$sort = $desc == false ? SORT_ASC : SORT_DESC;

array_multisort($fieldArr, $sort, $array);

}