implode函数的升级版,将一个多维数组的值转化为字符串

/**
 * implode函数的升级版
 * 将一个多维数组的值转化为字符串
 * @param   $glue
 * @param   $data
 * @return string
 */
function multiImplode($glue, $data)
{
    if( !isset($glue,$data) || !is_array($data) ){
        return '';
    }
    if( count($data)==0 ){
        return '';
    }
    if( count($data,1) == count($data) ){
        return implode($glue, $data);
    }
    $temp = array();
    if( !isset($method) ){
        $method = __FUNCTION__;
    }
    foreach( $data as $key => $val ){
        if( is_array($val) ){
            if( count($data,1) == count($data) ){
                $temp[] = implode($glue, $val);
            }else{
                $temp[] =$method($glue,$val);
            }
        }else{
            $temp[] = $val;
        }
    }
    return implode($glue, $temp);
}

$arr = array(
    88,
    array('pp','uu'),
    array(
        array('three_one','three_two'),
        array('three_one','three_two'),
    ),
);
echo  multiImplode(',',$arr);