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<?php
declare(strict_types=1);
namespace PhpEpub;
use SimpleXMLElement;
class Metadata
{
use Traits\InteractsWithTitle;
use Traits\InteractsWithDescription;
use Traits\InteractsWithDate;
use Traits\InteractsWithAuthors;
use Traits\InteractsWithPublisher;
use Traits\InteractsWithLanguage;
use Traits\InteractsWithSubject;
use Traits\InteractsWithIdentifier;
private readonly string $dcNamespace;
/**
* Metadata constructor.
*/
public function __construct(private readonly SimpleXMLElement $opfXml, private string $opfFilePath)
$namespaces = $this->opfXml->getNamespaces(true);
if (! isset($namespaces['dc'])) {
throw new Exception('Failed to identify dc namespace');
}
$this->dcNamespace = $namespaces['dc'];
* Saves the updated OPF file.
*
* @throws Exception If the OPF file cannot be saved.
public function save(): void
$result = $this->opfXml->asXML($this->opfFilePath);
if ($result === false) {
throw new Exception("Failed to save OPF file: {$this->opfFilePath}");
public function getOpfFilePath(): string
return $this->opfFilePath;
indy2kro /
php-epub
