如果我沒(méi)有理解錯(cuò)誤的話，可以這樣做
$list=array(
'fruit'=>array(
'you'=>'pear',
'I'=>'apple'
),
'size'=>array(
'you'=>'big',
'I'=>'small'
)
);//originlist
$title=array(
'you'=>'king',
'I'=>'general'
);//newdata
$list['title']=$title;//addnewdatatolist
                            

用array_map來(lái)做很簡(jiǎn)單:
$this->list=array_map(function($item){
$item['tmp']='Somevalue';
return$item;
},$this->list)