[7.1 概述](7.1%E6%A6%82%E8%BF%B0.md) [7.2 扩展的实现原理](7.2%E6%89%A9%E5%B1%95%E7%9A%84%E5%AE%9E%E7%8E%B0%E5%8E%9F%E7%90%86.md) [7.3 扩展的构成及编译](7.3%E6%89%A9%E5%B1%95%E7%9A%84%E6%9E%84%E6%88%90%E5%8F%8A%E7%BC%96%E8%AF%91.md) [7.4 钩子函数](7.4%E9%92%A9%E5%AD%90%E5%87%BD%E6%95%B0.md) [7.5 运行时配置](7.5%E8%BF%90%E8%A1%8C%E6%97%B6%E9%85%8D%E7%BD%AE.md) [7.6 函数](7.6%E5%87%BD%E6%95%B0.md) [7.7 zval的操作](7.7zval%E7%9A%84%E6%93%8D%E4%BD%9C.md) [7.8 常量](7.8%E5%B8%B8%E9%87%8F.md) [7.9 面向对象](7.9%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1.md) [7.10 资源类型](7.10%E8%B5%84%E6%BA%90%E7%B1%BB%E5%9E%8B.md) [7.11 经典扩展解析](7.11%E7%BB%8F%E5%85%B8%E6%89%A9%E5%B1%95%E8%A7%A3%E6%9E%90.md)