bcompiler_write_function Writes an defined function as bytecodes boolbcompiler_write_function resourcefilehandle stringfunctionName &warn.experimental.func; This reads the bytecodes from PHP for an existing function, and writes them to the open file handle. Order is not important, (eg. if function b uses function a, and you compile it like the example below, it will work perfectly OK) ]]> See also bcompiler_write_header, and bcompiler_write_footer.