Phive\Queue\Pdo\SqlitePdoQueue::pop PHP Method

    public function pop()
    {
        $sql = sprintf('SELECT id, item FROM %s WHERE eta <= %d ORDER BY eta LIMIT 1', $this->tableName, time());
        $this->pdo->exec('BEGIN IMMEDIATE');
        try {
            $stmt = $this->pdo->query($sql);
            $row = $stmt->fetch(\PDO::FETCH_ASSOC);
            $stmt->closeCursor();
            if ($row) {
                $sql = sprintf('DELETE FROM %s WHERE id = %d', $this->tableName, $row['id']);
                $this->pdo->exec($sql);
            }
            $this->pdo->exec('COMMIT');
        } catch (\Exception $e) {
            $this->pdo->exec('ROLLBACK');
            throw $e;
        }
        if ($row) {
            return $row['item'];
        }
        throw new NoItemAvailableException($this);
    }