PHP 返回数组指定字段的值

/**
 * 返回数组的值
 * 
 * @param unknown $arr        	
 * @param unknown $filed        	
 * @param unknown $value        	
 */
function returnArrvalue($arr, $filed, $value) {
    $newarr = array();
    foreach ($arr as $v) {
        if ($v [$filed] == $value) {
            $newarr [] = $v;
        }
    }
    return $newarr;
}