ArrayIterator 把数组改成迭代器
最后更新于：2022-04-02 02:26:46
[TOC]
## 实例
```
$arr = new ArrayIterator([3=>'a',1=>'b',2=>'c']);
$arr->asort();
while ($arr->valid()){
print_r($arr->current());
$arr->next();
}
// output: abc
echo "\n";
$arr->ksort();
$arr->rewind();
while ($arr->valid()){
print_r($arr->current());
$arr->next();
}
// output: bca
```
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