Converts the stack to an array.
Note:
Casting to an array is not supported yet.
此函数没有参数。
An array containing all the values in the same order as the stack.
Example #1 Ds\Stack::toArray() example
<?php
$stack = new \Ds\Stack([1, 2, 3]);
var_dump($stack->toArray());
?>
以上例程的输出类似于：
array(3) {
[0]=>
int(3)
[1]=>
int(2)
[2]=>
int(1)
}