外部函数接口

简介
安装/配置
示例
FFI — C 代码和数据的主接口
- 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 — Retrieve the count of parameters of a function type
- FFI\CType::getFuncParameterType — Retrieve the type of a function parameter
- 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

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2 years ago

Quickstart from Rasmus Lerdorf's 25 years of PHP talk. 

<?php
$ffi = FFI::cdef(
    "int printf(const char *format, ...);",
    "libc.so.6");
$ffi->printf("Hello %s!\n", "world");
?>

Requires ffi.enable=1