/**
* {@inheritdoc}
*/
protected function doSave(array $values, $lifetime)
{
$ok = true;
$data = array($lifetime ? time() + $lifetime : PHP_INT_MAX, '');
$allowCompile = 'cli' !== PHP_SAPI || ini_get('opcache.enable_cli');
foreach ($values as $key => $value) {
if (null === $value || is_object($value)) {
$value = serialize($value);
} elseif (is_array($value)) {
$serialized = serialize($value);
$unserialized = parent::unserialize($serialized);
// Store arrays serialized if they contain any objects or references
if ($unserialized !== $value || false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized)) {
$value = $serialized;
}
} elseif (is_string($value)) {
// Serialize strings if they could be confused with serialized objects or arrays
if ('N;' === $value || isset($value[2]) && ':' === $value[1]) {
$value = serialize($value);
}
} elseif (!is_scalar($value)) {
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, gettype($value)));
}
$data[1] = $value;
$file = $this->getFile($key, true);
$ok = $this->write($file, '<?php return ' . var_export($data, true) . ';') && $ok;
if ($allowCompile) {
@opcache_compile_file($file);
}
}
return $ok;
}
/**
* {@inheritdoc}
*/
protected function doFetch(array $ids)
{
if ($ids) {
$values = $this->redis->mGet($ids);
$index = 0;
foreach ($ids as $id) {
if ($value = $values[$index++]) {
(yield $id => parent::unserialize($value));
}
}
}
}
/**
* {@inheritdoc}
*/
protected function doFetch(array $ids)
{
$now = time();
$expired = array();
$sql = str_pad('', (count($ids) << 1) - 1, '?,');
$sql = "SELECT {$this->idCol}, CASE WHEN {$this->lifetimeCol} IS NULL OR {$this->lifetimeCol} + {$this->timeCol} > ? THEN {$this->dataCol} ELSE NULL END FROM {$this->table} WHERE {$this->idCol} IN ({$sql})";
$stmt = $this->getConnection()->prepare($sql);
$stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
foreach ($ids as $id) {
$stmt->bindValue(++$i, $id);
}
$stmt->execute();
while ($row = $stmt->fetch(\PDO::FETCH_NUM)) {
if (null === $row[1]) {
$expired[] = $row[0];
} else {
(yield $row[0] => parent::unserialize(is_resource($row[1]) ? stream_get_contents($row[1]) : $row[1]));
}
}
if ($expired) {
$sql = str_pad('', (count($expired) << 1) - 1, '?,');
$sql = "DELETE FROM {$this->table} WHERE {$this->lifetimeCol} + {$this->timeCol} <= ? AND {$this->idCol} IN ({$sql})";
$stmt = $this->getConnection()->prepare($sql);
$stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
foreach ($expired as $id) {
$stmt->bindValue(++$i, $id);
}
$stmt->execute($expired);
}
}
