Developer
<?php
namespace PhpOffice\PhpSpreadsheet\Shared;
use PhpOffice\PhpSpreadsheet\Exception as SpreadsheetException;
class XMLWriter extends \XMLWriter
{
/** @var bool */
public static $debugEnabled = false;
/** Temporary storage method */
const STORAGE_MEMORY = 1;
const STORAGE_DISK = 2;
/**
* Temporary filename.
*
* @var string
*/
private $tempFileName = '';
/**
* Create a new XMLWriter instance.
*
* @param int $temporaryStorage Temporary storage location
* @param string $temporaryStorageFolder Temporary storage folder
*/
public function __construct($temporaryStorage = self::STORAGE_MEMORY, $temporaryStorageFolder = null)
{
// Open temporary storage
if ($temporaryStorage == self::STORAGE_MEMORY) {
$this->openMemory();
} else {
// Create temporary filename
if ($temporaryStorageFolder === null) {
$temporaryStorageFolder = File::sysGetTempDir();
}
$this->tempFileName = (string) @tempnam($temporaryStorageFolder, 'xml');
// Open storage
if (empty($this->tempFileName) || $this->openUri($this->tempFileName) === false) {
// Fallback to memory...
$this->openMemory();
}
}
// Set default values
if (self::$debugEnabled) {
$this->setIndent(true);
}
}
/**
* Destructor.
*/
public function __destruct()
{
// Unlink temporary files
// There is nothing reasonable to do if unlink fails.
if ($this->tempFileName != '') {
/** @scrutinizer ignore-unhandled */
@unlink($this->tempFileName);
}
}
public function __wakeup(): void
{
$this->tempFileName = '';
throw new SpreadsheetException('Unserialize not permitted');
}
/**
* Get written data.
*
* @return string
*/
public function getData()
{
if ($this->tempFileName == '') {
return $this->outputMemory(true);
}
$this->flush();
return file_get_contents($this->tempFileName) ?: '';
}
/**
* Wrapper method for writeRaw.
*
* @param null|string|string[] $rawTextData
*
* @return bool
*/
public function writeRawData($rawTextData)
{
if (is_array($rawTextData)) {
$rawTextData = implode("\n", $rawTextData);
}
return $this->writeRaw(htmlspecialchars($rawTextData ?? ''));
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: