FFI::cdef

(PHP 7 >= 7.4.0)

FFI::cdefCreates a new FFI object

说明

public static FFI::cdef ([ string $code = "" [, string $lib ]] ) : FFI

Creates a new FFI object.

参数

code

A string containing a sequence of declarations in regular C language (types, structures, functions, variables, etc). Actually, this string may be copy-pasted from C header files.

Note:

C preprocessor directives are not supported, i.e. #include, #define and CPP macros do not work.

lib

The name of a shared library file, to be loaded and linked with the definitions.

Note:

If lib is omitted, platforms supporting RTLD_DEFAULT attempt to lookup symbols declared in code in the normal global scope. Other systems will fail to resolve these symbols.

返回值

Returns the freshly created FFI object.