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Long Term Support Release
<?php namespace PhpOffice\PhpSpreadsheet\Collection;> use DateInterval;use Psr\SimpleCache\CacheInterface; /** * This is the default implementation for in-memory cell collection. * * Alternatives implementation should leverage off-memory, non-volatile storage * to reduce overall memory usage. */ class Memory implements CacheInterface { private $cache = [];> /** public function clear() > * @return bool { > */$this->cache = []; return true; }> /** public function delete($key) > * @param string $key { > * unset($this->cache[$key]); > * @return bool > */return true; }> /** public function deleteMultiple($keys) > * @param iterable $keys { > * foreach ($keys as $key) { > * @return bool $this->delete($key); > */} return true; }> /** public function get($key, $default = null) > * @param string $key { > * @param mixed $default if ($this->has($key)) { > * return $this->cache[$key]; > * @return mixed } > */return $default; }> /** public function getMultiple($keys, $default = null) > * @param iterable $keys { > * @param mixed $default $results = []; > * foreach ($keys as $key) { > * @return iterable $results[$key] = $this->get($key, $default); > */} return $results; }> /** public function has($key) > * @param string $key { > * return array_key_exists($key, $this->cache); > * @return bool } > */> /** public function set($key, $value, $ttl = null) > * @param string $key { > * @param mixed $value $this->cache[$key] = $value; > * @param null|DateInterval|int $ttl > * return true; > * @return bool } > */> /** public function setMultiple($values, $ttl = null) > * @param iterable $values { > * @param null|DateInterval|int $ttl foreach ($values as $key => $value) { > * $this->set($key, $value); > * @return bool } > */return true; } }