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<?php
namespace AC;
use AC\Storage;
use LogicException;
class Transient implements Expirable {
/**
* @var Storage\Option
*/
protected $option;
/**
* @var Storage\Timestamp
*/
protected $timestamp;
public function __construct( $key ) {
$this->option = new Storage\Option( $key );
$this->timestamp = new Storage\Timestamp(
new Storage\Option( $key . '_timestamp' )
);
}
/**
* @param int|null $value
*
* @return bool
*/
public function is_expired( $value = null ) {
return $this->timestamp->is_expired( $value );
}
/**
* @return mixed
*/
public function get() {
return $this->option->get();
}
public function delete() {
$this->option->delete();
$this->timestamp->delete();
}
/**
* @param mixed $data
* @param int $expiration Time until expiration in seconds.
*
* @return bool
* @throws LogicException
*/
public function save( $data, $expiration ) {
// Always store timestamp before option data.
$this->timestamp->save( time() + (int) $expiration );
return $this->option->save( $data );
}
}
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