This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
This function searches for all functions declared in the given file, and
writes their correspondent bytecodes to the open file handle. Always
remember to include/require the file you intend to compile.
Example 1. bcompiler_write_functions_from_file() example