Foreign Function Interface

• Introduction
• Installing/Configuring
  • Requirements
  • Installation
  • Runtime Configuration
  • Resource Types
• Predefined Constants
• Examples
  • Basic FFI usage
  • PHP Callbacks
  • A Complete PHP/FFI/preloading Example
• FFI — Main interface to C code and data
  • FFI::addr — Creates an unmanaged pointer to C data
  • FFI::alignof — Gets the alignment
  • FFI::arrayType — Dynamically constructs a new C array type
  • FFI::cast — Performs a C type cast
  • FFI::cdef — Creates a new FFI object
  • FFI::free — Releases an unmanaged data structure
  • FFI::isNull — Checks whether a FFI\CData is a null pointer
  • FFI::load — Loads C declarations from a C header file
  • FFI::memcmp — Compares memory areas
  • FFI::memcpy — Copies one memory area to another
  • FFI::memset — Fills a memory area
  • FFI::new — Creates a C data structure
  • FFI::scope — Instantiates an FFI object with C declarations parsed during preloading
  • FFI::sizeof — Gets the size of C data or types
  • FFI::string — Creates a PHP string from a memory area
  • FFI::type — Creates an FFI\CType object from a C declaration
  • FFI::typeof — Gets the FFI\CType of FFI\CData
• FFI\CData — C Data Handles
• FFI\CType — C Type Handles
  • FFI\CType::getAlignment — Description
  • FFI\CType::getArrayElementType — Description
  • FFI\CType::getArrayLength — Description
  • FFI\CType::getAttributes — Description
  • FFI\CType::getEnumKind — Description
  • FFI\CType::getFuncABI — Description
  • FFI\CType::getFuncParameterCount — Description
  • FFI\CType::getFuncParameterType — Description
  • FFI\CType::getFuncReturnType — Description
  • FFI\CType::getKind — Description
  • FFI\CType::getName — Description
  • FFI\CType::getPointerType — Description
  • FFI\CType::getSize — Description
  • FFI\CType::getStructFieldNames — Description
  • FFI\CType::getStructFieldOffset — Description
  • FFI\CType::getStructFieldType — Description
• FFI\Exception — FFI Exceptions
• FFI\ParserException — FFI Parser Exceptions