使用新数组键的关联数组值

Question

是否可以为新的数组键设置关联数组的值

来自

$some['some_key'] = [
   'a' => val_a,
   'b' => val_b,
   'c' => val_c
]

to

$some['some_key'][$some['some_key']['a'] = new_value

结果

$some['some_key'] = [
   'a' => val_a,
   'b' => val_b,
   'c' => val_c,
   val_a => new_value
]

Answer 1

这将是有史以来最短的答案。

$some['some_key'] = [
   'a' => 'val_a',
   'b' => 'val_b',
   'c' => 'val_c'
];
$some['some_key'][$some['some_key']['a']] = 'new_value';