ZipArchive.php

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<?php
require_once PHPEXCEL_ROOT . 'PHPExcel/Shared/PCLZip/pclzip.lib.php';


class PHPExcel_Shared_ZipArchive
{

        private $_tempDir;

        private $_zip;


        public function open($fileName)
        {
                $this->_tempDir = PHPExcel_Shared_File::sys_get_temp_dir();

                $this->_zip = new PclZip($fileName);

                return true;
        }


        public function close()
        {
        }


        public function addFromString($localname, $contents)
        {
                $filenameParts = pathinfo($localname);

                $handle = fopen($this->_tempDir.'/'.$filenameParts["basename"], "wb");
                fwrite($handle, $contents);
                fclose($handle);

                $res = $this->_zip->add($this->_tempDir.'/'.$filenameParts["basename"],
                                                                PCLZIP_OPT_REMOVE_PATH, $this->_tempDir,
                                                                PCLZIP_OPT_ADD_PATH, $filenameParts["dirname"]
                                                           );
                if ($res == 0) {
                        throw new Exception("Error zipping files : " . $this->_zip->errorInfo(true));
                }

                unlink($this->_tempDir.'/'.$filenameParts["basename"]);
        }

}