PHP5.5 SplStack

1. [代码][PHP]代码    

<?php
$stack = new SplStack();

// LIFO
echo "Stack PUSH\n";

$stack[] = 'A';
$stack->push('B');
$stack->push('C');

$stack[] = 'D';
$stack[] = 'E';

foreach($stack as $val) {
	echo $val. "\n";
}

$stack->pop();

echo "Stack POP\n";

foreach($stack as $val) {
	echo $val. "\n";
}

?>

2. [图片] 屏幕快照 2015-04-20 下午10.00.27.png