method has documentation in bbn\Cache
Checks whether a valid cache exists for the given item.
function($item, $ttl = NULL)
{
if (self::$type) {
switch (self::$type){
case 'apc':
return apc_exists($item);
case 'memcache':
return $this->obj->get($item) !== $item;
case 'files':
$file = self::_file($item, $this->path);
if (($content = $this->fs->getContents($file))
&& ($t = json_decode($content, true))
) {
if ((!$ttl || !isset($t['ttl']) || ($ttl === $t['ttl']))
&& (!$t['expire'] || ($t['expire'] > time()))
) {
return true;
}
$this->fs->delete($file);
}
return false;
}
}
}
Checks whether a valid cache exists for the given item. BBN is a suite of PHP and JS libraries and VueJS components - all open-source! bbn.io, build applications, the quick way
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