function checkUpdate($packagecodename = "example")
 {
     //check package to update
     $downloader = null;
     $yourfile = "core/files/packagezip/" . $packagecodename . ".zip";
     //cas aucune présence du package, pas d'update
     if (!file_exists($yourfile)) {
         if (!file_exists("package/" . $packagecodename)) {
             return false;
         }
     }
     //downloader init
     if ($downloader == null && $this->includer->include_pratikclass("Downloader")) {
         $downloader = new PratikDownloader($this->initer);
     }
     //data distant file
     $distantfilesize = "";
     if ($downloader && ($distantfile = $downloader->getFileLink($packagecodename . ".zip", "packages")) != "") {
         $head = array_change_key_case(get_headers($distantfile, TRUE));
         $distantfilesize = $head['content-length'];
     }
     //when distant file not exists
     if ($distantfilesize == "") {
         return false;
     }
     //cas zip package inexistant, update necessaire
     if (!file_exists($yourfile)) {
         if (file_exists("package/" . $packagecodename)) {
             return true;
         }
     }
     //data your file
     $yourfilesize = filesize($yourfile);
     //compare to show update or not
     if ($yourfilesize != $distantfilesize) {
         return true;
     }
     return false;
 }
 function check_new_package()
 {
     //downloader init
     $downloader = null;
     if ($this->includer->include_pratikclass("Downloader")) {
         $downloader = new PratikDownloader($this->initer);
     }
     //vérifie si de nouveaux packages sont disponibles dans le dossier package et les ajoute à la bd
     $tabpackagefromdb = array();
     $tabdatapackagefromdb = $this->data_loader();
     //prepare tab from db et test db result has a folder
     if ($tabdatapackagefromdb) {
         foreach ($tabdatapackagefromdb as $datapackagefromdb) {
             $packagecour = $tabpackagefromdb[] = $datapackagefromdb['nomcodepackage'];
             //test db result has folder
             if (!is_dir("package/" . $packagecour) && ($downloader == null || $downloader->getFileLink($packagecour . ".zip", "packages") == "")) {
                 //suppr de la db
                 $this->db->query("delete from `package` where nomcodepackage='" . $packagecour . "'");
                 $this->db->query("delete from `package_depends_on` where nomcodepackage='" . $packagecour . "' or nomcodedepend='" . $packagecour . "'");
             }
         }
     }
     $tabpackagefromfolder = array();
     $tabcheminpackagefromfolder = $this->loader->charg_dossier_unique_dans_tab("package", true);
     //prepare tab from folder
     if ($tabcheminpackagefromfolder) {
         foreach ($tabcheminpackagefromfolder as $packagecour) {
             if (!is_dir($packagecour)) {
                 continue;
             }
             $packagecour = str_replace("package/", "", $packagecour);
             $tabpackagefromfolder[] = $packagecour;
         }
     }
     //test folder is in db
     foreach ($tabpackagefromfolder as $packagecour) {
         //test folder is in db
         if (array_search($packagecour, $tabpackagefromdb) === false) {
             $descripter = array();
             $descripter['name'] = "";
             $descripter['description'] = "";
             $descripter['version'] = "";
             $descripter['groupe'] = "";
             if (file_exists("package/" . $packagecour . "/package.descripter.php")) {
                 include "package/" . $packagecour . "/package.descripter.php";
             }
             //check package is deployed
             $deployed = 0;
             if (file_exists("core/files/tmp/log/packageloaded/" . $packagecour . ".loaded.log")) {
                 $deployed = 1;
             }
             //chack package is locked in first deployer (to lock it later for example)
             $indeployer = 0;
             if (file_exists("deploy/package.chain.deploy.php")) {
                 include "deploy/package.chain.deploy.php";
                 if ($tabpackagetodeploy) {
                     foreach ($tabpackagetodeploy as $packagefirstdeployment) {
                         if ($packagefirstdeployment['name'] == $packagecour) {
                             if (isset($packagefirstdeployment['locked']) && $packagefirstdeployment['locked']) {
                                 $indeployer = 1;
                             } else {
                                 break;
                             }
                         }
                         if ($indeployer) {
                             break;
                         }
                     }
                 }
             }
             //set package to update
             $toupdate = "0";
             //ajout dans la db
             $this->db->query("insert into `package` (`idpackage`, `nomcodepackage`, `nompackage`, `groupepackage`, `description`, `version`, `indeployer`, `deployed`, `toupdate`) values (NULL,'" . $packagecour . "','" . $descripter['name'] . "','" . $descripter['groupe'] . "','" . $descripter['description'] . "','" . $descripter['version'] . "','" . $indeployer . "','" . $deployed . "','" . $toupdate . "')");
             //ajout des dependances
             if (isset($descripter['depend']) && is_array($descripter['depend'])) {
                 foreach ($descripter['depend'] as $dependcour) {
                     if ($dependcour != "") {
                         $this->db->query("insert into `package_depends_on` (`nomcodepackage`, `nomcodedepend`) values ('" . $packagecour . "','" . $dependcour . "')");
                     }
                 }
             }
         }
     }
     $tabpackagefromsrclinks = array();
     $tabcheminpackagefromsrclinks = array();
     for ($cptsrclink = 0; $cptsrclink < count($downloader->getTabSrcLink()); $cptsrclink++) {
         $tabtmp = $this->loader->charg_url_unique_dans_tab($downloader->getSrcLink($cptsrclink) . "/packages/");
         $tabcheminpackagefromsrclinks = array_merge($tabcheminpackagefromsrclinks, $tabtmp);
     }
     //print_r($tabcheminpackagefromsrclinks);
     //prepare tab from srclinks
     if ($tabcheminpackagefromsrclinks) {
         foreach ($tabcheminpackagefromsrclinks as $packagecour) {
             //$packagecour=substr($packagecour,(strrpos($packagecour,"/")));
             $packagecour = str_replace(".zip", "", $packagecour);
             if (!is_dir("package/" . $packagecour)) {
                 $tabpackagefromsrclinks[] = $packagecour;
             }
         }
     }
     //test folder is in db
     foreach ($tabpackagefromsrclinks as $packagecour) {
         //test folder is in db
         if (array_search($packagecour, $tabpackagefromdb) === false) {
             //check package is deployed
             $deployed = 0;
             //chack package is locked in first deployer (to lock it later for example)
             $indeployer = 0;
             //ajout dans la db
             $this->db->query("insert into `package` (`idpackage`, `nomcodepackage`, `indeployer`, `deployed`) values (NULL,'" . $packagecour . "','" . $indeployer . "','" . $deployed . "')");
         }
     }
 }