(PHP 7 >= 7.4.0)
FFI::load — Loads C declarations from a C header file
Loads C declarations from a C header file. It is possible to specify shared libraries that should be loaded,
using special FFI_LIB defines in the loaded C header file.
filenameThe name of a C header file.
C preprocessor directives are not supported, i.e. #include,
#define and CPP macros do not work, except for special cases
listed below.
The header file should contain a #define statement for the
FFI_SCOPE variable, e.g.: #define FFI_SCOPE "MYLIB".
Refer to the class introduction for details.
The header file may contain a #define statement for the
FFI_LIB variable to specify the library it exposes. If it is
a system library only the file name is required, e.g.: #define FFI_LIB
"libc.so.6". If it is a custom library, a relative path is required,
e.g.: #define FFI_LIB "./mylib.so".
Returns the freshly created FFI object, or null on failure.