value 模式;value可以是任意类型数据。
* 完整流程测试;读取最低5000次/s 含有写的1000次/s
* get($find=null)
* 1.get(); //返回所有
* 2.get(key); //直接通过key获取
* 3.get(data_key,value); //搜索key为value的数据 直接返回数据不含key
* 4.get(array('key','value')); //搜索数据,符合key为指定value的所有数据;key value形式
*
* set($find=null,$change=null)
* 1.set(string,val) //添加或更新;
* 2.set(array('key','value_find'),array('key','change_to')) //查找方式更新 多条数据
*
* remove($find,$value)
* 1.remove(); //清空
* 2.remove(string); //删除 eg:set('37'),删除key为37的数据 存在且删除成功则返回true
* 3.remove(array('key','value_find')); //查找方式删除;多条数据
* reset($arr);//初始化数据
*/
define('CONFIG_EXIT', '');
class FileCache{
private $data;
private $file;
private $fileHash;//最后一次修改;保存时判断,如果有新修改则先读取再保存
function __construct($file) {
$this->file = $file;
$this->data= self::load($file);
$this->fileChangeCheck();
}
public function get($find=null,$value=null){
if (is_null($find)){
return $this->data;
}else if(is_array($find)){//查找内容数据方式获取;返回多条
$result = array();
foreach ($this->data as $key => $val) {
if ($val[$find[0]] == $find[1]) {
$result[$key] = $this->data[$key];
}
}
if(count($result)!=0){
return $result;
}
}else{//单条数据获取
$find .= '';//字符串
if(!is_null($value)){//通过某个key寻找单条数据
foreach ($this->data as $key => $val) {
if ($val[$find] == $value) {
return $val;
}
}
}
if(isset($this->data[$find])){
return $this->data[$find];
}
}
return false;
}
//添加或更新
public function set($find,$value){
$this->fileChangeCheck();
//最后有修改则先更新本地。
if(is_string($find)){//单条数据更新
$this->data[$find] = $value;
}else if(is_array($find)){//查找方式更新;更新多条
foreach ($this->data as $key => $val) {
if ($val[$find[0]] == $find[1]) {
$this->data[$key][$value[0]] = $value[1];
}
}
}else{
return false;
}
self::save($this->file,$this->data);
return true;
}
//删除,查找删除
public function remove($find){
$this->fileChangeCheck();
if(is_string($find)){//单条数据删除
unset($this->data[$find]);
}else if(is_array($find)){//查找删除
foreach ($this->data as $key => $val) {
if ($val[$find[0]] == $find[1]){
unset($this->data[$key]);
}
}
}else{
return false;
}
self::save($this->file,$this->data);
return true;
}
private function fileChangeCheck(){
if(is_null($this->fileHash)){
$this->fileHash = @md5_file($this->file);
return;
}
//是否发生改变
$lastHash = @md5_file($this->file);
if($lastHash != $this->fileHash){
$this->fileHash = $lastHash;
$this->data= self::load($this->file);
}
}
public function reset($data,$save = true){
$this->data = $data;
if($save){
self::save($this->file,$this->data);
}
}
//=====================================================
public static function arrSort(&$arr,$key, $type = 'asc'){
$keysValue = $newArray = array();
foreach ($arr as $k => $v) {
$keysValue[$k] = $v[$key];
}
if ($type == 'asc') {
asort($keysValue);
} else {
arsort($keysValue);
}
reset($keysValue);
foreach ($keysValue as $k => $v) {
$newArray[$k] = $arr[$k];
}
return $newArray;
}
public function getMaxId(){
$minId = 100;
if(count($this->data)==0){
return $minId;//一切从100开始
}
$idArr = array_keys($this->data);
rsort($idArr,SORT_NUMERIC);//id从高到底
$the_id = intval($idArr[0])+1;
if($the_id<=$minId){
return $minId;
}
return $the_id;
}
/**
* 加载数据;并解析成程序数据
*/
public static function load($file){//10000次需要4s 数据量差异不大。
if (!$file) return false;
$file = iconv_system($file);
if ( !file_exists($file) ){
@file_put_contents($file,CONFIG_EXIT.'[]');
chmod_path($file,0777);
return array();
}
$str = file_read_safe($file,10.5);
if( $str === false || $str === 0 || $str === -1){
show_tips('[Error Code:1010] FileCache data read error!
'.get_path_this($file));
}
if (strlen($str) == 0 ||
strlen($str) == strlen(CONFIG_EXIT) ){
@file_put_contents($file,CONFIG_EXIT.'[]');
chmod_path($file,0777);
return array();
}
if($str === false || strlen($str) < strlen(CONFIG_EXIT) ){
show_tips('[Error Code:1011] FileCache data error!
'.get_path_this($file));
}
$data= json_decode(substr($str, strlen(CONFIG_EXIT)),true);
if (is_null($data)) $data = array();
return $data;
}
/**
* 保存数据;
*/
public static function save($file,$data){//10000次需要6s
if (!$file) return false;
$file = iconv_system($file);
if ( !file_exists($file) ){
@file_put_contents($file,CONFIG_EXIT.'[]');
chmod_path($file,0777);
}
if (!path_writeable($file)) {
show_tips(BASIC_PATH."
".LNG('path_can_not_write_data'));
}
if(defined('JSON_PRETTY_PRINT')){
$jsonStr = json_encode($data,JSON_UNESCAPED_UNICODE|JSON_PRETTY_PRINT);
}else{
$jsonStr = json_encode($data);
}
if(is_null($jsonStr) || strlen($jsonStr) == 0){//含有二进制或非utf8字符串对应检测
show_tips('[Error Code:1013] json_encode error!
'.get_path_this($file));
}
$result = file_wirte_safe($file,CONFIG_EXIT.$jsonStr,10.5);
if($result === false){
show_tips('[Error Code:1012] FileCache save error!
'.get_path_this($file));
}
return $result;
}
}