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# PHP SAPI

SAPI：Server Application Programming Interface服务端应用编程端口。他就是php与其他应用交互的接口，php脚本要执行有很多中方式，通过web服务器，或者直接在命令行行下，也可以嵌入其他程序中。SAPI提供了一个和外部通信的接口，常见的SAPI有：cgi、fast-cgi、cli、模块。

> php的运行模式就是PHP SAPI 的类别

更多详细的php内核研究,这里有一个专题 [PHP内核探索：一次请求的开始与结束](http://www.nowamagic.net/librarys/veda/detail/1286)

此文章所在专题列表如下：

1. [PHP内核探索：从SAPI接口开始](http://www.nowamagic.net/librarys/veda/detail/1285)
2. [PHP内核探索：一次请求的开始与结束](http://www.nowamagic.net/librarys/veda/detail/1286)
3. [PHP内核探索：一次请求生命周期](http://www.nowamagic.net/librarys/veda/detail/1287)
4. [PHP内核探索：单进程SAPI生命周期](http://www.nowamagic.net/librarys/veda/detail/1289)
5. [PHP内核探索：多进程/线程的SAPI生命周期](http://www.nowamagic.net/librarys/veda/detail/1290)
6. [PHP内核探索：Zend引擎](http://www.nowamagic.net/librarys/veda/detail/1291)
7. [PHP内核探索：再次探讨SAPI](http://www.nowamagic.net/librarys/veda/detail/1292)
8. [PHP内核探索：Apache模块介绍](http://www.nowamagic.net/librarys/veda/detail/1293)
9. [PHP内核探索：通过mod\_php5支持PHP](http://www.nowamagic.net/librarys/veda/detail/1299)
10. [PHP内核探索：Apache运行与钩子函数](http://www.nowamagic.net/librarys/veda/detail/1312)
11. [PHP内核探索：嵌入式PHP](http://www.nowamagic.net/librarys/veda/detail/1318)
12. [PHP内核探索：PHP的FastCGI](http://www.nowamagic.net/librarys/veda/detail/1321)
13. [PHP内核探索：如何执行PHP脚本](http://www.nowamagic.net/librarys/veda/detail/1322)
14. [PHP内核探索：PHP脚本的执行细节](http://www.nowamagic.net/librarys/veda/detail/1323)
15. [PHP内核探索：操作码OpCode](http://www.nowamagic.net/librarys/veda/detail/1324)
16. [PHP内核探索：PHP里的opcode](http://www.nowamagic.net/librarys/veda/detail/1325)
17. [PHP内核探索：解释器的执行过程](http://www.nowamagic.net/librarys/veda/detail/1332)
18. [PHP内核探索：变量概述](http://www.nowamagic.net/librarys/veda/detail/1326)
19. [PHP内核探索：变量存储与类型](http://www.nowamagic.net/librarys/veda/detail/1327)
20. [PHP内核探索：PHP中的哈希表](http://www.nowamagic.net/librarys/veda/detail/1344)
21. [PHP内核探索：理解Zend里的哈希表](http://www.nowamagic.net/librarys/veda/detail/1348)
22. [PHP内核探索：PHP哈希算法设计](http://www.nowamagic.net/librarys/veda/detail/1349)
23. [PHP内核探索：翻译一篇HashTables文章](http://www.nowamagic.net/librarys/veda/detail/1366)
24. [PHP内核探索：哈希碰撞攻击是什么？](http://www.nowamagic.net/librarys/veda/detail/1367)
25. [PHP内核探索：常量的实现](http://www.nowamagic.net/librarys/veda/detail/1368)
26. [PHP内核探索：变量的存储](http://www.nowamagic.net/librarys/veda/detail/1386)
27. [PHP内核探索：变量的类型](http://www.nowamagic.net/librarys/veda/detail/1387)
28. [PHP内核探索：变量的值操作](http://www.nowamagic.net/librarys/veda/detail/1388)
29. [PHP内核探索：变量的创建](http://www.nowamagic.net/librarys/veda/detail/1389)
30. [PHP内核探索：预定义变量](http://www.nowamagic.net/librarys/veda/detail/1390)
31. [PHP内核探索：变量的检索](http://www.nowamagic.net/librarys/veda/detail/1393)
32. [PHP内核探索：变量的类型转换](http://www.nowamagic.net/librarys/veda/detail/1394)
33. [PHP内核探索：弱类型变量的实现](http://www.nowamagic.net/librarys/veda/detail/1401)
34. [PHP内核探索：静态变量的实现](http://www.nowamagic.net/librarys/veda/detail/1402)
35. [PHP内核探索：变量类型提示](http://www.nowamagic.net/librarys/veda/detail/1409)
36. [PHP内核探索：变量的生命周期](http://www.nowamagic.net/librarys/veda/detail/1414)
37. [PHP内核探索：变量赋值与销毁](http://www.nowamagic.net/librarys/veda/detail/1415)
38. [PHP内核探索：变量作用域](http://www.nowamagic.net/librarys/veda/detail/1420)
39. [PHP内核探索：诡异的变量名](http://www.nowamagic.net/librarys/veda/detail/1421)
40. [PHP内核探索：变量的value和type存储](http://www.nowamagic.net/librarys/veda/detail/1423)
41. [PHP内核探索：全局变量Global](http://www.nowamagic.net/librarys/veda/detail/1424)
42. [PHP内核探索：变量类型的转换](http://www.nowamagic.net/librarys/veda/detail/1437)
43. [PHP内核探索：内存管理开篇](http://www.nowamagic.net/librarys/veda/detail/1438)
44. [PHP内核探索：Zend内存管理器](http://www.nowamagic.net/librarys/veda/detail/1439)
45. [PHP内核探索：PHP的内存管理](http://www.nowamagic.net/librarys/veda/detail/1440)
46. [PHP内核探索：内存的申请与销毁](http://www.nowamagic.net/librarys/veda/detail/1441)
47. [PHP内核探索：引用计数与写时复制](http://www.nowamagic.net/librarys/veda/detail/1442)
48. [PHP内核探索：PHP5.3的垃圾回收机制](http://www.nowamagic.net/librarys/veda/detail/1452)
49. [PHP内核探索：内存管理中的cache](http://www.nowamagic.net/librarys/veda/detail/1453)
50. [PHP内核探索：写时复制COW机制](http://www.nowamagic.net/librarys/veda/detail/1454)
51. [PHP内核探索：数组与链表](http://www.nowamagic.net/librarys/veda/detail/1455)
52. [PHP内核探索：使用哈希表API](http://www.nowamagic.net/librarys/veda/detail/1456)
53. [PHP内核探索：数组操作](http://www.nowamagic.net/librarys/veda/detail/1457)
54. [PHP内核探索：数组源码分析](http://www.nowamagic.net/librarys/veda/detail/1458)
55. [PHP内核探索：函数的分类](http://www.nowamagic.net/librarys/veda/detail/1462)
56. [PHP内核探索：函数的内部结构](http://www.nowamagic.net/librarys/veda/detail/1463)
57. [PHP内核探索：函数结构转换](http://www.nowamagic.net/librarys/veda/detail/1464)
58. [PHP内核探索：定义函数的过程](http://www.nowamagic.net/librarys/veda/detail/1465)
59. [PHP内核探索：函数的参数](http://www.nowamagic.net/librarys/veda/detail/1466)
60. [PHP内核探索：zend\_parse\_parameters函数](http://www.nowamagic.net/librarys/veda/detail/1467)
61. [PHP内核探索：函数返回值](http://www.nowamagic.net/librarys/veda/detail/1473)
62. [PHP内核探索：形参return value](http://www.nowamagic.net/librarys/veda/detail/1474)
63. [PHP内核探索：函数调用与执行](http://www.nowamagic.net/librarys/veda/detail/1475)
64. [PHP内核探索：引用与函数执行](http://www.nowamagic.net/librarys/veda/detail/1489)
65. [PHP内核探索：匿名函数及闭包](http://www.nowamagic.net/librarys/veda/detail/1490)
66. [PHP内核探索：面向对象开篇](http://www.nowamagic.net/librarys/veda/detail/1491)
67. [PHP内核探索：类的结构和实现](http://www.nowamagic.net/librarys/veda/detail/1492)
68. [PHP内核探索：类的成员变量](http://www.nowamagic.net/librarys/veda/detail/1499)
69. [PHP内核探索：类的成员方法](http://www.nowamagic.net/librarys/veda/detail/1500)
70. [PHP内核探索：类的原型zend\_class\_entry](http://www.nowamagic.net/librarys/veda/detail/1512)
71. [PHP内核探索：类的定义](http://www.nowamagic.net/librarys/veda/detail/1513)
72. [PHP内核探索：访问控制](http://www.nowamagic.net/librarys/veda/detail/1514)
73. [PHP内核探索：继承，多态与抽象类](http://www.nowamagic.net/librarys/veda/detail/1515)
74. [PHP内核探索：魔术函数与延迟绑定](http://www.nowamagic.net/librarys/veda/detail/1519)
75. [PHP内核探索：保留类与特殊类](http://www.nowamagic.net/librarys/veda/detail/1520)
76. [PHP内核探索：对象](http://www.nowamagic.net/librarys/veda/detail/1521)
77. [PHP内核探索：创建对象实例](http://www.nowamagic.net/librarys/veda/detail/1522)
78. [PHP内核探索：对象属性读写](http://www.nowamagic.net/librarys/veda/detail/1523)
79. [PHP内核探索：命名空间](http://www.nowamagic.net/librarys/veda/detail/1524)
80. [PHP内核探索：定义接口](http://www.nowamagic.net/librarys/veda/detail/1525)
81. [PHP内核探索：继承与实现接口](http://www.nowamagic.net/librarys/veda/detail/1526)
82. [PHP内核探索：资源resource类型](http://www.nowamagic.net/librarys/veda/detail/1533)
83. [PHP内核探索：Zend虚拟机](http://www.nowamagic.net/librarys/veda/detail/1540)
84. [PHP内核探索：虚拟机的词法解析](http://www.nowamagic.net/librarys/veda/detail/1541)
85. [PHP内核探索：虚拟机的语法分析](http://www.nowamagic.net/librarys/veda/detail/1542)
86. [PHP内核探索：中间代码opcode的执行](http://www.nowamagic.net/librarys/veda/detail/1543)
87. [PHP内核探索：代码的加密与解密](http://www.nowamagic.net/librarys/veda/detail/1544)
88. [PHP内核探索：zend\_execute的具体执行过程](http://www.nowamagic.net/librarys/veda/detail/1580)
89. [PHP内核探索：变量的引用与计数规则](http://www.nowamagic.net/librarys/veda/detail/1581)
90. [PHP内核探索：新垃圾回收机制说明](http://www.nowamagic.net/librarys/veda/detail/1582)


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