Make simple data local storage with PHP serialization and deserialization

Make simple data local storage with PHP serialization and deserialization

The following program can be used as a tool class

      /** * Use PHP serialization and deserialization to make simple data local storage*/    classObjectdb {Private Static $db; //successful return of the Objectdb object, no need to use the new//directory outside to write file permissions         Public functionDefaultdb ($dbname= './default.db ') { self::$db=$dbname; if(file_exists($dbname))            {                    return NewObjectdb (); }               $ret=file_put_contents($dbname,Serialize(Array())); if($ret> 0) {                    return NewObjectdb (); }                return false; }        //Add data key,value or update         Public functionSetvalueforkey ($key,$value)        {            $arrdata=$this-Getdbarray (); $arrdata[$key] =$value; return $this->setdbarray ($arrdata); }        //Delete data from the specified key         Public functionRemovevalueforkey ($key)        {            $arrdata=$this-Getdbarray (); unset($arr[$key]); }        //gets the data for the specified key         Public functionGetvalueforkey ($key)        {            $arrdata=$this-Getdbarray (); return $arrdata[$key]; }        //get all the data         Public functionGetAll () {$arrdata=$this-Getdbarray (); return $arrdata; }        //get all the keys         Public functionGetallkey () {$arrdata=$this-Getdbarray (); return Array_keys($arrdata); }        //Empty DB data         Public functionCleardb () {$ret=file_put_contents(Self::$db,Serialize(Array())); return $ret; }        //Private Get        Private functionGetdbarray () {$rdata=file_get_contents(Self::$db); return unserialize($rdata); }        //Private Set        Private functionSetdbarray ($arr)        {            $ret=file_put_contents(Self::$db,Serialize($arr)); if($ret> 0) {                return true; }Else            {                return false; }        }    }    

The test code is as follows

    //Test    $dbhandle= Objectdb::Defaultdb (); if(!$dbhandle) {        Echo"Init failure!"; Exit(); }    Echo"Start <br>"; Var_dump($dbhandle-getAll ()); Echo"<br>add 1 <br>"; $dbhandle->setvalueforkey ("Baidu", "www.baidu.com"); $dbhandle->setvalueforkey ("QQ", "www.qq.com")); $dbhandle->setvalueforkey ("Taobao", "www.taobao.com"); Var_dump($dbhandle-getAll ()); Echo"<br>mod 1 <br>"; $dbhandle->setvalueforkey ("Baidu", "http://www.baidu.com"); Var_dump($dbhandle-getAll ()); Echo"<br>get 1 <br>"; Echo $dbhandle->getvalueforkey ("Baidu"); Echo"<br>get 1 <br>"; Var_dump($dbhandle-Getallkey ()); Echo"<br>clear 1 <br>"; $dbhandle-Cleardb (); Echo"<br>get 1 <br>"; Var_dump($dbhandle->getall ());

Make simple data local storage with PHP serialization and deserialization