返回 PHP 数组名称
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Return PHP array name
提问by James
Array ( [kanye] => Array ( [0] => Kanya [1] => Janaye [2] => Kayne [3] => Kane [4] => Kaye ) [wst] => Array ( [0] => ST [1] => St [2] => st [3] => EST [4] => West ) )
Array
(
[0] => Kanya
[1] => Janaye
[2] => Kayne
[3] => Kane
[4] => Kaye
)
Array
(
[0] => ST
[1] => St
[2] => st
[3] => EST
[4] => West
)
I've got those two arrays inside one array. The top array holds them both, then below is each one individually. When I am displaying the individual arrays, how do I echo their name?
我将这两个数组放在一个数组中。最上面的数组包含它们，然后下面是每个单独的。当我显示单个数组时，如何回显它们的名称？
So the first would be kanye, then list the contents, etc.
所以第一个是kanye，然后列出内容等。
Hope that makes sense. I know it will be a simple bit of code but it's stumping me.
希望这是有道理的。我知道这将是一段简单的代码，但它让我很难过。
回答by viam0Zah
You can use a foreachstatement to get the key value pair of the array:
可以使用foreach语句获取数组的键值对：
$outer_arr = array('kanye' => array('Kanya', 'Janaye', 'Kayne', 'Kane'));
foreach($outer_arr as $key => $val) {
print($key); // "kanye"
print_r($val); // Array ( [0] => Kanya [1] => Janaye [2] => Kayne [3] => Kane )
}
回答by nickf
If you just need to get the keys, you can use array_keys
如果您只需要获取密钥，则可以使用 array_keys
$myArray = array(
"Kanye" => array("Kane", ...)
"West" => array("Wst", ...)
);
print_r(array_keys($myArray));
/*
array (
0 => Kanye
1 => West
)
*/
回答by grantwparks
How about just print_r on the outer array?
只在外部数组上使用 print_r 怎么样？
