假设我有一个这样的数组：
$array = array
("this","is","me","and","I","am","an","array","hello","beautiful","world");
如何创建一个函数，将0转换为"a"，将1转换为"B"使用Foreach还是
因此，代替
Array
(
[0] => this
[1] => is
[2] => me
[3] => and
[4] => I
[5] => am
[6] => an
[7] => array
[8] => hello
[9] => beautiful
[10] => world
)
我会得到
Array
(
['A'] => this
['B'] => is
['C'] => me
['D'] => and
['E'] => I
['F'] => am
['G'] => an
['H'] => array
['I'] => hello
['J'] => beautiful
['BA'] => world
)
function digits_to_letters($input) {
return strtr($input, "0123456789", "ABCDEFGHIJ");
}
$result = array_flip(array_map("digits_to_letters", array_flip($original)));
（运行示例：http://ideone.com/TQNYj)
如果你更喜欢foreach而不是array_flip+array_map，你可以使用这个：
$result = array();
foreach($original as $k => $v) {
$result[strtr($k, "0123456789", "ABCDEFGHIJ")] = $v;
}