DOCTRINE_NAMESPACE_CACHEKEY
DOCTRINE_NAMESPACE_CACHEKEY = 'DoctrineNamespaceCacheKey[%s]'
Filesystem cache driver.
fetchMultiple(array $keys) : array<mixed,mixed>
Returns an associative array of values for keys is found in cache.
| array | $keys | Array of keys to retrieve from cache |
Array of retrieved values, indexed by the specified keys. Values that couldn't be retrieved are not contained in this array.
save(string $id, mixed $data, integer $lifeTime) : boolean
Puts data into the cache.
If a cache entry with the given id already exists, its data will be replaced.
| string | $id | The cache id. |
| mixed | $data | The cache entry/data. |
| integer | $lifeTime | The lifetime in number of seconds for this cache entry. If zero (the default), the entry never expires (although it may be deleted from the cache to make place for other entries). |
TRUE if the entry was successfully stored in the cache, FALSE otherwise.
getStats() : array|null
Retrieves cached information from the data store.
The server's statistics array has the following values:
hits Number of keys that have been requested and found present.
misses Number of items that have been requested and not found.
uptime Time that the server is running.
memory_usage Memory used by this server to store items.
memory_available Memory allowed to use for storage.
An associative array with server's statistics if available, NULL otherwise.
writeFile(string $filename, string $content) : boolean
Writes a string content to file in an atomic way.
| string | $filename | Path to the file where to write the data. |
| string | $content | The content to write |
TRUE on success, FALSE if path cannot be created, if path is not writable or an any other error.
<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Cache;
/**
* Filesystem cache driver.
*
* @since 2.3
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
*/
class FilesystemCache extends FileCache
{
const EXTENSION = '.doctrinecache.data';
/**
* {@inheritdoc}
*/
public function __construct($directory, $extension = self::EXTENSION, $umask = 0002)
{
parent::__construct($directory, $extension, $umask);
}
/**
* {@inheritdoc}
*/
protected function doFetch($id)
{
$data = '';
$lifetime = -1;
$filename = $this->getFilename($id);
if ( ! is_file($filename)) {
return false;
}
$resource = fopen($filename, "r");
if (false !== ($line = fgets($resource))) {
$lifetime = (int) $line;
}
if ($lifetime !== 0 && $lifetime < time()) {
fclose($resource);
return false;
}
while (false !== ($line = fgets($resource))) {
$data .= $line;
}
fclose($resource);
return unserialize($data);
}
/**
* {@inheritdoc}
*/
protected function doContains($id)
{
$lifetime = -1;
$filename = $this->getFilename($id);
if ( ! is_file($filename)) {
return false;
}
$resource = fopen($filename, "r");
if (false !== ($line = fgets($resource))) {
$lifetime = (int) $line;
}
fclose($resource);
return $lifetime === 0 || $lifetime > time();
}
/**
* {@inheritdoc}
*/
protected function doSave($id, $data, $lifeTime = 0)
{
if ($lifeTime > 0) {
$lifeTime = time() + $lifeTime;
}
$data = serialize($data);
$filename = $this->getFilename($id);
return $this->writeFile($filename, $lifeTime . PHP_EOL . $data);
}
}