The Rise of Contactless Payments:...
In recent years, contactless payments have surged in popularity, driven...
<?php
namespace PhpOffice\PhpSpreadsheet\Writer;
abstract class BaseWriter implements IWriter
{
/**
* Write charts that are defined in the workbook?
* Identifies whether the Writer should write definitions for any charts that exist in the PhpSpreadsheet object.
*
* @var bool
*/
protected $includeCharts = false;
/**
* Pre-calculate formulas
* Forces PhpSpreadsheet to recalculate all formulae in a workbook when saving, so that the pre-calculated values are
* immediately available to MS Excel or other office spreadsheet viewer when opening the file.
*
* @var bool
*/
protected $preCalculateFormulas = true;
/**
* Use disk caching where possible?
*
* @var bool
*/
private $useDiskCaching = false;
/**
* Disk caching directory.
*
* @var string
*/
private $diskCachingDirectory = './';
/**
* @var resource
*/
protected $fileHandle;
/**
* @var bool
*/
private $shouldCloseFile;
public function getIncludeCharts()
{
return $this->includeCharts;
}
public function setIncludeCharts($includeCharts)
{
$this->includeCharts = (bool) $includeCharts;
return $this;
}
public function getPreCalculateFormulas()
{
return $this->preCalculateFormulas;
}
public function setPreCalculateFormulas($precalculateFormulas)
{
$this->preCalculateFormulas = (bool) $precalculateFormulas;
return $this;
}
public function getUseDiskCaching()
{
return $this->useDiskCaching;
}
public function setUseDiskCaching($useDiskCache, $cacheDirectory = null)
{
$this->useDiskCaching = $useDiskCache;
if ($cacheDirectory !== null) {
if (is_dir($cacheDirectory)) {
$this->diskCachingDirectory = $cacheDirectory;
} else {
throw new Exception("Directory does not exist: $cacheDirectory");
}
}
return $this;
}
public function getDiskCachingDirectory()
{
return $this->diskCachingDirectory;
}
protected function processFlags(int $flags): void
{
if (((bool) ($flags & self::SAVE_WITH_CHARTS)) === true) {
$this->setIncludeCharts(true);
}
if (((bool) ($flags & self::DISABLE_PRECALCULATE_FORMULAE)) === true) {
$this->setPreCalculateFormulas(false);
}
}
/**
* Open file handle.
*
* @param resource|string $filename
*/
public function openFileHandle($filename): void
{
if (is_resource($filename)) {
$this->fileHandle = $filename;
$this->shouldCloseFile = false;
return;
}
$mode = 'wb';
$scheme = parse_url($filename, PHP_URL_SCHEME);
if ($scheme === 's3') {
// @codeCoverageIgnoreStart
$mode = 'w';
// @codeCoverageIgnoreEnd
}
$fileHandle = $filename ? fopen($filename, $mode) : false;
if ($fileHandle === false) {
throw new Exception('Could not open file "' . $filename . '" for writing.');
}
$this->fileHandle = $fileHandle;
$this->shouldCloseFile = true;
}
/**
* Close file handle only if we opened it ourselves.
*/
protected function maybeCloseFileHandle(): void
{
if ($this->shouldCloseFile) {
if (!fclose($this->fileHandle)) {
throw new Exception('Could not close file after writing.');
}
}
}
}
Blog Section
Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.
In recent years, contactless payments have surged in popularity, driven...
As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...
Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...