<?php
// Кэширование MySQL запросов посредством сериализации, добавлен страховочный метод на случай если сервер mysql будет не доступен!?// Caching , return from alert cahce if mysql server FAILD;
// BY server@2010 pashkovdenis@gmail.com
class cacher {
private $cahcedir;
private $cahcetime;
private $sqlhadler;
private $maxmemoryusage;
private $userescape;
private $handlinm;
private $dir;
private $hdl;
private $flag;
private $cutime;
private $usecachesystem;
function __construct($server=array("localhost","root","","base"),$useescape=true,$cp="cp1251",$time=60,$maxmermo=2024){
session_id()==false?session_start():null;
$this->handlinm=0;
!empty($server[0])?$this->handling_db($server):null;
$cp1251=true?@mysql_query("SET NAMES {$cp}"):null;
$this->cahcetime=$time;
$this->maxmemoryusage=$maxmermo;
$this->userescape=$useescape;
$this->dir="work_dumps/";
$this->cutime=strftime("%J-%H",time());
//echo $this->cutime;
}
private function handling_db($server){
if($this->sqlhadler=@mysql_connect($server[0],$server[1],$server[2])){
@mysql_select_db($server[3]); }else{
$this->flag='stop';
//throw new Exception("Msql Faild");
}
$this->handlinm = 1;
}
private function bindArrayToObject($array) {
$return = new stdClass();
foreach ($array as $k => $v) {
if (is_array($v)) {
$return->$k = $this->bindArrayToObject($v);
}
else {
$return->{$k} = $v;
}
}
return $return;
}
public function getpanic($sql){
$sql_R='';
$result=array();
if(file_exists($this->dir.substr($sql,0,50).$this->cutime.$this->cutime.".dmps") && strftime("%Y %m %d",filectime($this->dir.substr($sql,0,50).$this->cutime.".dmps"))!==date("Y m d")) $this->clear();
if ($sql_R=@mysql_query($sql)){
while ($$sql_R=@mysql_fetch_array($sql_R)){
$result[]=$$sql_R;
}
if(!file_exists($this->dir.substr($sql,0,50).$this->cutime.$this->cutime.".dmps"))
file_put_contents($this->dir.substr($sql,0,50).$this->cutime.".dmps",serialize($result));
return $result;
////////////
}elseif(file_exists($this->dir.substr($sql,0,50).$this->cutime.".dmps")){
return unserialize(file_get_contents($this->dir.substr($sql,0,50).$this->cutime.".dmps"));
}else{
throw new exception("Faild");
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public function get($mysql_req,$obj=null){
if($this->flag=='stop') return ;
$rest_array=array();
$sql=$mysql_req;
//0637766991
if(isset($_SESSION["<sqlc>".$mysql_req]) AND strftime("%M",strtotime(date("h:i:0")))-strftime("%M",$_SESSION[$mysql_req."time"] ) <$this->cahcetime ){
$rest=unserialize($_SESSION["<sqlc>".$mysql_req]);
//$rest=array_walk($rest,'expld');
if($obj==1){
return $this->bindArrayToObject($rest);
}else return $rest;
}else
{
if(file_exists($this->dir.substr($sql,0,50).$this->cutime.".dmps")){
if($obj==1){
return $this->bindArrayToObject(unserialize(file_get_contents($this->dir.substr($sql,0,50).$this->cutime.".dmps")));
}else return unserialize(file_get_contents($this->dir.substr($sql,0,50).$this->cutime.".dmps"));
}else{
$sql= $this->userescape & $this->handlinm ?mysql_real_escape_string($mysql_req):$mysql_req;
if($ret=mysql_query($sql)){
while($reslt=mysql_fetch_array($ret)) $rest_array[]= $reslt;
$_SESSION["<sqlc>".$mysql_req]= serialize($rest_array);
$_SESSION[$mysql_req."time"] = strtotime(date("h:i:00"));
round(memory_get_usage()/1024) >= $this->maxmemoryusage ? $this->clean():null;
mysql_free_result($ret) ;
file_put_contents($this->dir.substr($sql,0,50).$this->cutime.".dmps",serialize($rest_array));
if($obj==1){
return $this->bindArrayToObject($rest_array);
}else return $rest_array;
}else
{
return false;
}
}
}
}
public static function excpth($e){
echo "<h3 style='color:red;'> Warning New Exception :(( </h3>";
echo "<h3> {$e->getMessage() } </h3>";
echo "<h3> {$e->getLine() } </h3>";
/////////////////////////////////////////////........
}
public function sql($mysql_req){
$sql= $this->userescape & $this->handlinm?mysql_real_escape_string($mysql_req):$mysql_req;
if($reslt=mysql_query($sql)){
return $reslt;
}else
{
return false;
}
}
public function clean(){
$f=scandir($this->dir);
foreach($f as $k){
strstr($k,".dmps")?unlink($this->dir.$k):null;
}
while(list($key,$value)=each($_SESSION)){
if(strstr($value,"<sqlc>")){
unset($_SESSION[$key]);}
}
@mysql_close($this->sqlhadler);
}
}
set_exception_handler("cacher::excpth");
?>
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