在PHP中将字符串转换为对关联数组索引的引用

我有这样一个数组：

[0] => [basketball][player]
[1] => [basketball][threes][player]
[2] => [basketball][home][leaders][player]
[3] => [basketball][away][leaders][player]

$array = ..... // the big array
$str = "[basketball][player]";
$keys = explode("][",substr($str,1,-1));
$pos = $array; // PHP does a lazy copy, so there is no performance issue here
while($key = array_shift($keys)) $pos = $pos[$key];
// $pos is now your target element

我想将每个元素转换为关联数组中某个元素的引用：

$post['basketball']['player']
$post['basketball']['threes']['player']
etc.

---

有没有办法将前者自动转换为后者？如果是这样的话会非常方便，如果不是这样的话可能会非常不方便，所以我希望有办法，但我不知道可能是什么。

我会这样说：

[0] => [basketball][player]
[1] => [basketball][threes][player]
[2] => [basketball][home][leaders][player]
[3] => [basketball][away][leaders][player]

$array = ..... // the big array
$str = "[basketball][player]";
$keys = explode("][",substr($str,1,-1));
$pos = $array; // PHP does a lazy copy, so there is no performance issue here
while($key = array_shift($keys)) $pos = $pos[$key];
// $pos is now your target element

• 剥去开头的

  [

  和结尾的

  ]

  （使用

  substr

  ）
• 使用

  explode

  将字符串拆分为

  ][

• 循环遍历分解的片段，将它们用作阵列的键

比如说：

[0] => [basketball][player]
[1] => [basketball][threes][player]
[2] => [basketball][home][leaders][player]
[3] => [basketball][away][leaders][player]

$array = ..... // the big array
$str = "[basketball][player]";
$keys = explode("][",substr($str,1,-1));
$pos = $array; // PHP does a lazy copy, so there is no performance issue here
while($key = array_shift($keys)) $pos = $pos[$key];
// $pos is now your target element

---

谢谢你的回答。不幸的是，它似乎不起作用。我相信这会尝试分别获得

$pos['basketball']

和

$pos['player']

，而我想要的是

$pos['basketball']['player']

（这个结论是基于将此代码复制并粘贴到我的应用程序中并进行尝试。）您是正确的，它得到

$pos['basketball']

，后面跟着

$pos['player']

，但它分配回

$pos

，因此结果是

$pos['basketball']['player']

。