php系列----->通過PHP數組實現簡單的順序棧

廢話少說,上代碼(talk is easy,show me the code): <?php class SimpleStack { private $_stack = []; private $_size = []; public function __construct($size = 10) { $this->_size = $size; } // 獲取棧頂元素 public function pop() { // 空棧 if (count($this->_stack) == 0) { return false; } return array_pop($this->_stack); } // 推送元素到棧頂 public function push($value) { // 滿棧 if (count($this->_stack) == $this->_size) { return false; } array_push($this->_stack, $value); return true; } public function isEmpty() { // 是否是空棧 return current($this->_stack) == false; } public function size() { return count($this->_stack); } } $stack = new SimpleStack(15); var_dump($stack->isEmpty()); # true $stack->push(111); $stack->push('學院君'); var_dump($stack->pop()); # 學院君 var_dump(count($stack->size())); # 1
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