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- <?php
- /**
- * Created by PhpStorm.
- * User: chenkuan
- * Date: 2017/11/14
- * Time: 上午11:13
- */
- namespace common\helpers;
- class HashMapHelper
- {
- var $H_table;
- /*
- * HashMap构造函数
- */
- public function __construct() {
- $this->H_table = array ();
- }
- /*
- *向HashMap中添加一个键值对
- *@param $key 插入的键
- *@param $value 插入的值
- */
- public function put($key, $value) {
- if (!array_key_exists($key, $this->H_table)) {
- $this->H_table[$key] = $value;
- return null;
- } else {
- $tempValue = $this->H_table[$key];
- $this->H_table[$key] = $value;
- return $tempValue;
- }
- }
- /*
- * 根据key获取对应的value
- * @param $key
- */
- public function get($key) {
- if (array_key_exists($key, $this->H_table))
- return $this->H_table[$key];
- else
- return null;
- }
- /*
- *移除HashMap中所有键值对
- */
- /*
- *删除指定key的键值对
- *@param $key 要移除键值对的key
- */
- public function remove($key) {
- $temp_table = array ();
- if (array_key_exists($key, $this->H_table)) {
- $tempValue = $this->H_table[$key];
- while ($curValue = current($this->H_table)) {
- if (!(key($this->H_table) == $key))
- $temp_table[key($this->H_table)] = $curValue;
- next($this->H_table);
- }
- $this->H_table = null;
- $this->H_table = $temp_table;
- return $tempValue;
- } else
- return null;
- }
- /**
- * 获取HashMap的所有键值
- * @return 返回HashMap中key的集合,以数组形式返回
- */
- public function keys(){
- return array_keys($this->H_table);
- }
- /**
- * 获取HashMap的所有value值
- */
- public function values(){
- return array_values($this->H_table);
- }
- /**
- * 将一个HashMap的值全部put到当前HashMap中
- * @param $map
- */
- public function putAll($map){
- if(!$map->isEmpty()&& $map->size()>0){
- $keys = $map->keys();
- foreach($keys as $key){
- $this->put($key,$map->get($key));
- }
- }
- }
- /**
- * 移除HashMap中所有元素
- */
- public function removeAll() {
- $this->H_table = null;
- $this->H_table = array ();
- }
- /*
- *HashMap中是否包含指定的值
- *@param $value
- */
- public function containsValue($value) {
- while ($curValue = current($this->H_table)) {
- if ($curValue == $value) {
- return true;
- }
- next($this->H_table);
- }
- return false;
- }
- /*
- *HashMap中是否包含指定的键key
- *@param $key
- */
- public function containsKey($key) {
- if (array_key_exists($key, $this->H_table)) {
- return true;
- } else {
- return false;
- }
- }
- /*
- *获取HashMap中元素个数
- */
- public function size() {
- return count($this->H_table);
- }
- /*
- *判断HashMap是否为空
- */
- public function isEmpty() {
- return (count($this->H_table) == 0);
- }
- /**
- *
- */
- public function toString() {
- print_r($this->H_table);
- }
- }
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