SplStack::__construct

(PHP 5 >= 5.3.0, PHP 7)

SplStack::__constructConstructs a new stack implemented using a doubly linked list

说明

SplStack::__construct ( void )

This constructs a new empty stack.

Note:

This method automatically sets the iterator mode to SplDoublyLinkedList::IT_MODE_LIFO.

参数

此函数没有参数。

返回值

没有返回值。

范例

Example #1 SplStack::__construct() example

<?php
$q 
= new SplStack();

$q[] = 1;
$q[] = 2;
$q[] = 3;

foreach (
$q as $elem)  {
 echo 
$elem."\n";
}
?>

以上例程会输出:

3
2
1

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