Jika anda hanya mengeluarkan perkataan 'Beijing':
$area = array(
'china' => array(
'Shanghai',
'Hubei',
'Beijing '= & gt; Array
'hd' = & gt; 'Haidian'
)
);
//print_r($new_arr);
/*
0] => 0
[1] => 1
[2] => ;
![[Web front-end] Permulaan pantas Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Jika anda hanya mengeluarkan perkataan 'Beijing':
$area = array(
'china' => array(
'Shanghai',
'Hubei',
'Beijing '= & gt; Array
'hd' = & gt; 'Haidian'
)
)
);
//print_r($new_arr);
/*
0] => 0
[1] => 1
[2] => ;