public function unlock($key, $ownerid, $forceunlock = false) {
        if (array_key_exists($key, $this->locks)) {
            @unlink($this->locks[$key]);
            unset($this->locks[$key]);
            return true;
        } else if ($forceunlock) {
            $lockfile = $this->get_lock_file($key);
            if (file_exists($lockfile)) {
                @unlink($lockfile);
            }
            return true;
        }
        // You cannot unlock a file you didn't lock.
        return false;
    }
public function unlock($key, $ownerid, $forceunlock = false) {
        if (array_key_exists($key, $this->locks)) {
            @unlink($this->locks[$key]);
            unset($this->locks[$key]);
            return true;
        } else if ($forceunlock) {
            $lockfile = $this->get_lock_file($key);
            if (file_exists($lockfile)) {
                @unlink($lockfile);
            }
            return true;
        }
        // You cannot unlock a file you didn't lock.
        return false;
    }
public function unlock ( $ key , $ ownerid , $ forceunlock = false ) { if ( array_key_exists ( $ key , $ this -> locks ) ) { @ unlink ( $ this -> locks [ $ key ] ) ; unset ( $ this -> locks [ $ key ] ) ; return true ; } else if ( $ forceunlock ) { $ lockfile = $ this -> get_lock_file ( $ key ) ; if ( file_exists ( $ lockfile ) ) { @ unlink ( $ lockfile ) ; } return true ; } // You cannot unlock a file you didn't lock. return false ; }
Releases an acquired lock.

For more details see {@link cache_lock::unlock()}

@param string $key
@param string $ownerid A unique identifier for the owner of this lock. Not used by default.
@param bool $forceunlock If set to true the lock will be removed if it exists regardless of whether or not we own it.
@return bool
Releases an acquired lock .