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<?php
namespace Illuminate\Cache;
use Illuminate\Support\InteractsWithTime;
class ArrayStore extends TaggableStore
{
use InteractsWithTime, RetrievesMultipleKeys;
/**
* The array of stored values.
*
* @var array
*/
protected $storage = [];
/**
* Retrieve an item from the cache by key.
*
* @param string|array $key
* @return mixed
*/
public function get($key)
{
if (! isset($this->storage[$key])) {
return;
}
$item = $this->storage[$key];
$expiresAt = $item['expiresAt'] ?? 0;
if ($expiresAt !== 0 && $this->currentTime() > $expiresAt) {
$this->forget($key);
return;
}
return $item['value'];
}
/**
* Store an item in the cache for a given number of seconds.
*
* @param string $key
* @param mixed $value
* @param int $seconds
* @return bool
*/
public function put($key, $value, $seconds)
{
$this->storage[$key] = [
'value' => $value,
'expiresAt' => $this->calculateExpiration($seconds),
];
return true;
}
/**
* Increment the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return int
*/
public function increment($key, $value = 1)
{
if (! isset($this->storage[$key])) {
$this->forever($key, $value);
return $this->storage[$key]['value'];
}
$this->storage[$key]['value'] = ((int) $this->storage[$key]['value']) + $value;
return $this->storage[$key]['value'];
}
/**
* Decrement the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return int
*/
public function decrement($key, $value = 1)
{
return $this->increment($key, $value * -1);
}
/**
* Store an item in the cache indefinitely.
*
* @param string $key
* @param mixed $value
* @return bool
*/
public function forever($key, $value)
{
return $this->put($key, $value, 0);
}
/**
* Remove an item from the cache.
*
* @param string $key
* @return bool
*/
public function forget($key)
{
if (array_key_exists($key, $this->storage)) {
unset($this->storage[$key]);
return true;
}
return false;
}
/**
* Remove all items from the cache.
*
* @return bool
*/
public function flush()
{
$this->storage = [];
return true;
}
/**
* Get the cache key prefix.
*
* @return string
*/
public function getPrefix()
{
return '';
}
/**
* Get the expiration time of the key.
*
* @param int $seconds
* @return int
*/
protected function calculateExpiration($seconds)
{
return $this->toTimestamp($seconds);
}
/**
* Get the UNIX timestamp for the given number of seconds.
*
* @param int $seconds
* @return int
*/
protected function toTimestamp($seconds)
{
return $seconds > 0 ? $this->availableAt($seconds) : 0;
}
}