[8.1静态延时绑定](8.1%E9%9D%99%E6%80%81%E5%BB%B6%E6%97%B6%E7%BB%91%E5%AE%9A.md) [8.2命名空间概述](8.2%E5%91%BD%E5%90%8D%E7%A9%BA%E9%97%B4%E6%A6%82%E8%BF%B0.md) [8.3使用命名空间](8.3%E4%BD%BF%E7%94%A8%E5%91%BD%E5%90%8D%E7%A9%BA%E9%97%B4.md) [8.4namespace关键字](8.4namespace%E5%85%B3%E9%94%AE%E5%AD%97.md) [8.5命名空间元素的导入和别名](8.5%E5%91%BD%E5%90%8D%E7%A9%BA%E9%97%B4%E5%85%83%E7%B4%A0%E7%9A%84%E5%AF%BC%E5%85%A5%E5%92%8C%E5%88%AB%E5%90%8D.md) [8.6PDO概述](8.6PDO%E6%A6%82%E8%BF%B0.md) [8.7PDO对象常用方法](8.7PDO%E5%AF%B9%E8%B1%A1%E5%B8%B8%E7%94%A8%E6%96%B9%E6%B3%95.md) [8.8PDOStatement对象常用方法](8.8PDOStatement%E5%AF%B9%E8%B1%A1%E5%B8%B8%E7%94%A8%E6%96%B9%E6%B3%95.md) [8.9PDO错误处理](8.9PDO%E9%94%99%E8%AF%AF%E5%A4%84%E7%90%86.md) [8.10SQL语句预处理](8.10SQL%E8%AF%AD%E5%8F%A5%E9%A2%84%E5%A4%84%E7%90%86.md)