233 lines
7.9 KiB
PHP
Executable File
233 lines
7.9 KiB
PHP
Executable File
<?php
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/*
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* @link http://www.kalcaddle.com/
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* @author warlee | e-mail:kalcaddle@qq.com
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* @copyright warlee 2014.(Shanghai)Co.,Ltd
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* @license http://kalcaddle.com/tools/licenses/license.txt
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*/
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/**
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* 数据的缓存存储类；key=>value 模式；value可以是任意类型数据。
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* 完整流程测试；读取最低5000次/s 含有写的1000次/s
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* add 添加单条数据；已存在则返回false
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* reset 重置所有数据；不传参数代表清空数据
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* get: 获取数据；获取全部；获取指定key数据；获取指定多个key的数据;查找方式获取多条数据
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* 1. get();
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* 2. get("demo")
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* 3. get(array('demo','admin'))
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* 4. get('group','','root')
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* update: 更新数据；更新指定key数据；获取指定多个key的数据; 查找方式更新多条数据
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* 1. update("demo",array('name'=>'ddd',...))
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* 2. update(array('demo','admin'),array(array('name'...),array('name'...)))
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* 3. update('group','system','root')
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*
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* replace_update($key_old,$key_new,$value_new)替换方式更新；满足key更新的需求
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*
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* delete: 获取数据；获取全部；获取指定key数据；获取指定多个key的数据;查找方式获取多条数据
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* 1. delete("demo")
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* 2. delete(array('demo','admin'))
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* 3. delete('group','','root')
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* 例如:====================================
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* ['sss':['name':'sss','group':'root'],'bbb':['name':'bbb','group':'root']
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* ,'ccc':['name':'ccc','group':'system'],'ddd':['name':'ddd','group':'root']
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* 查找方式删除 delete('group','','root');
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* 查找方式更新 update('group','system','root');
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* 查找方式获取 get('group','','root');
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*/
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define('CONFIG_EXIT', '<?php exit;?>');
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class fileCache
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{
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private $data;
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private $file;
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function __construct($file) {
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$this->file = $file;
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$this->data= self::load($file);
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}
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/**
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* 重置所有数据；不传参数代表清空数据
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*/
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public function reset($list=array()){
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$this->data = $list;
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self::save($this->file,$this->data);
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}
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/**
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* 添加一条数据，不能重复；如果已存在则返回false;1k次/s
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*/
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public function add($k,$v){
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if (!isset($this->data[$k])) {
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$this->data[$k] = $v;
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self::save($this->file,$this->data);
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return true;
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}
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return false;
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}
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/**
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* 获取数据;不存在则返回false;100w次/s
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* $k null 不传则返回全部;
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* $k string 为字符串；则根据key获取数据，只有一条数据
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* $search_value 设置时；表示以查找的方式筛选数据筛选条件为 $key=$k 值为$search_value的数据；多条
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*/
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public function get($k = '',$v='',$search_value=false){
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if ($k === '') return $this->data;
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$search = array();
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if ($search_value === false) {
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if (is_array($k)) {
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//多条数据获取
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$num = count($k);
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for ($i=0; $i < $num; $i++) {
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$search[$k[$i]] = $this->data[$k[$i]];
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}
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return $search;
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}else if(isset($this->data[$k])){
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//单条数据获取
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return $this->data[$k];
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}
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}else{
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//查找内容数据方式获取；返回多条
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foreach ($this->data as $key => $val) {
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if ($val[$k] == $search_value) {
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$search[$key] = $this->data[$key];
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}
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}
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return $search;
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}
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return false;
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}
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/**
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* 更新数据;不存在;或者任意一条不存在则返回false;不进行保存
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* $k $v string 为字符串；则根据key只更新一条数据
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* $k $v array array($key1,$key2,...),array($value1,$value2,...)
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* 则表示更新多条数据
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* $search_value 设置时；表示以查找的方式更新数据中的数据
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*/
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public function update($k,$v,$search_value=false){
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if ($search_value === false) {
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if (is_array($k)) {
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//多条数据更新
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$num = count($k);
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for ($i=0; $i < $num; $i++) {
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$this->data[$k[$i]] = $v[$i];
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}
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self::save($this->file,$this->data);
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return true;
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}else if(isset($this->data[$k])){
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//单条数据更新
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$this->data[$k] = $v;
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self::save($this->file,$this->data);
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return true;
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}
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}else{
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//查找方式更新；更新多条
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foreach ($this->data as $key => $val) {
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if ($val[$k] == $search_value) {
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$this->data[$key][$k] = $v;
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}
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}
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self::save($this->file,$this->data);
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return true;
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}
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return false;
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}
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/*
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* 替换方式更新；满足key更新的需求
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*/
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public function replace_update($key_old,$key_new,$value_new){
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if(isset($this->data[$key_old])){
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$value = $this->data[$key_old];
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unset($this->data[$key_old]);
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$this->data[$key_new] = $value_new;
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self::save($this->file,$this->data);
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return true;
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}
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return false;
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}
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/**
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* 删除;不存在返回false
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*/
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public function delete($k,$v='',$search_value=false){
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if ($search_value === false) {
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if (is_array($k)) {
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//多条数据更新
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$num = count($k);
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for ($i=0; $i < $num; $i++) {
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unset($this->data[$k[$i]]);
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}
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self::save($this->file,$this->data);
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return true;
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}else if(isset($this->data[$k])){
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//单条数据删除
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unset($this->data[$k]);
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self::save($this->file,$this->data);
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return true;
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}
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}else{
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//查找内容数据方式删除；删除多条
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foreach ($this->data as $key => $val) {
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if ($val[$k] == $search_value){
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unset($this->data[$key]);
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}
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}
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self::save($this->file,$this->data);
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return true;
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}
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return false;
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}
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//=====================================================
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/**
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* 排序
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*/
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public static function arr_sort(&$arr,$key, $type = 'asc'){
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$keysvalue = $new_array = array();
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foreach ($arr as $k => $v) {
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$keysvalue[$k] = $v[$key];
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}
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if ($type == 'asc') {
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asort($keysvalue);
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} else {
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arsort($keysvalue);
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}
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reset($keysvalue);
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foreach ($keysvalue as $k => $v) {
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$new_array[$k] = $arr[$k];
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}
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return $new_array;
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}
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/**
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* 加载数据；并解析成程序数据
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*/
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public static function load($file){//10000次需要4s 数据量差异不大。
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if (!file_exists($file)) touch($file);
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$str = file_get_contents($file);
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$str = substr($str, strlen(CONFIG_EXIT));
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$data= json_decode($str,true);
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if (is_null($data)) $data = array();
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return $data;
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}
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/**
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* 保存数据；
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*/
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public static function save($file,$data){//10000次需要6s
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if (!$file) return;
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if($fp = fopen($file, "w")){
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if (flock($fp, LOCK_EX)) { // 进行排它型锁定
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$str = CONFIG_EXIT.json_encode($data);
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fwrite($fp, $str);
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fflush($fp); // flush output before releasing the lock
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flock($fp, LOCK_UN); // 释放锁定
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}
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fclose($fp);
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}
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}
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} |