使用PHP甚至可以通过引用传递数组吗?或者只是我的虫子。
class MyStack{
private $_storage = array();
public function push(&$elem){
$this->_storage[] = $elem;
}
public function pop(){
return array_pop($this->_storage);
}
public function top(){
return $this->_storage[count($this->_storage)-1];
}
public function length(){
return count($this->_storage);
}
public function isEmpty(){
return ($this->length() == 0);
}
}
?>
<?php
$stack = new MyStack;
$c = array(0, 1);
$stack->push($c);
$t = $stack->top();
$t[] = 2;
echo count($stack->top());
?>
3
但结果是:
2