Filters
Summary
Filters and contexts allow generic stream types to be modified without requiring direct code changes, or INI settings that would affect an entire request. Using the techniques covered in this chapter, you'll be able to make your own wrapper implementations more useful and alter the data produced by other wrappers as well.
As you move on, we'll be leaving the workings of the PHPAPI behind and returning to the mechanics of the PHP build system to produce more complicated extensions that link into other applications, but find easier ways to generate them using collections of tools to handle the tedious work.
The PHP Life Cycle
- The PHP Life Cycle
- It All Starts with the SAPI
- Starting Up and Shutting Down
- Life Cycles
- Zend Thread Safety
- Summary
Variables from the Inside Out
Memory Management
Setting Up a Build Environment
- Setting Up a Build Environment
- Building PHP
- Configuring PHP for Development
- Compiling on UNIX
- Compiling on Win32
- Summary
Your First Extension
- Your First Extension
- Anatomy of an Extension
- Building Your First Extension
- Building Statically
- Functional Functions
- Summary
Returning Values
Accepting Parameters
- Accepting Parameters
- Automatic Type Conversion with zend_parse_parameters()
- Arg Info and Type-hinting
- Summary
Working with Arrays and HashTables
The Resource Data Type
PHP4 Objects
PHP5 Objects
Startup, Shutdown, and a Few Points in Between
- Startup, Shutdown, and a Few Points in Between
- Cycles
- Exposing Information Through MINFO
- Constants
- Extension Globals
- Userspace Superglobals
- Summary
INI Settings
Accessing Streams
Implementing Streams
- Implementing Streams
- PHP Streams Below the Surface
- Wrapper Operations
- Implementing a Wrapper
- Manipulation
- Inspection
- Summary
Diverting the Stream
Configuration and Linking
- Configuration and Linking
- Autoconf
- Looking for Libraries
- Enforcing Module Dependencies
- Speaking the Windows Dialect
- Summary
Extension Generators
Setting Up a Host Environment
- Setting Up a Host Environment
- The Embed SAPI
- Building and Compiling a Host Application
- Re-creating CLI by Wrapping Embed
- Reusing Old Tricks
- Summary
Advanced Embedding
- Advanced Embedding
- Calling Back into PHP
- Dealing with Errors
- Initializing PHP
- Overriding INI_SYSTEM and INI_PERDIR Options
- Capturing Output
- Extending and Embedding at Once
- Summary
Appendix A. A Zend API Reference
- Appendix A. A Zend API Reference
- Parameter Retrieval
- Classes
- Objects
- Exceptions
- Execution
- INI Settings
- Array Manipulation
- Hash Tables
- Resources/Lists
- Linked Lists
- Memory
- Constants
- Variables
- Miscellaneous API Function
- Summary
Appendix B. PHPAPI
Appendix C. Extending and Embedding Cookbook
Appendix D. Additional Resources
EAN: 2147483647
Pages: 175
