php中如何在数组的开头插入一个元素
代码如下
```
```
效果如下
```
MacBook-Air:~ test$ php 1.php
Array
(
[0] => 13812345678
[1] => 13112345678
[2] => 13012345678
)
Array
(
[0] => 13116460730
[1] => 13812345678
[2] => 13112345678
[3] => 13012345678
)
```