mirror of
https://github.com/php/php-src.git
synced 2024-11-29 12:53:37 +08:00
69 lines
1.0 KiB
PHP
69 lines
1.0 KiB
PHP
--TEST--
|
|
SPL: DoublyLinkedList: Stacks
|
|
--INI--
|
|
allow_call_time_pass_reference=1
|
|
--FILE--
|
|
<?php
|
|
$stack = new SplStack();
|
|
// errors
|
|
try {
|
|
$stack->pop();
|
|
} catch (RuntimeException $e) {
|
|
echo "Exception: ".$e->getMessage()."\n";
|
|
}
|
|
try {
|
|
$stack->shift();
|
|
} catch (RuntimeException $e) {
|
|
echo "Exception: ".$e->getMessage()."\n";
|
|
}
|
|
|
|
// data consistency
|
|
$a = 2;
|
|
$stack->push($a);
|
|
$a = 3;
|
|
$stack->push(&$a);
|
|
$a = 4;
|
|
echo $stack->pop()."\n";
|
|
echo $stack->pop()."\n";
|
|
|
|
// peakable
|
|
$stack->push(1);
|
|
$stack->push(2);
|
|
echo $stack->top()."\n";
|
|
|
|
// iterable
|
|
foreach ($stack as $elem) {
|
|
echo "[$elem]\n";
|
|
}
|
|
|
|
// countable
|
|
$stack->push(NULL);
|
|
$stack->push(NULL);
|
|
echo count($stack)."\n";
|
|
echo $stack->count()."\n";
|
|
var_dump($stack->pop());
|
|
var_dump($stack->pop());
|
|
|
|
// clonable
|
|
$stack->push(2);
|
|
$stack_clone = clone $stack;
|
|
$stack_clone->pop();
|
|
echo count($stack)."\n";
|
|
?>
|
|
===DONE===
|
|
<?php exit(0); ?>
|
|
--EXPECTF--
|
|
Exception: Can't pop from an empty datastructure
|
|
Exception: Can't shift from an empty datastructure
|
|
3
|
|
2
|
|
2
|
|
[2]
|
|
[1]
|
|
4
|
|
4
|
|
NULL
|
|
NULL
|
|
3
|
|
===DONE===
|