runkit_function_rename Change a function's name &reftitle.description; boolrunkit_function_rename stringfuncname stringnewname ¬e.runkit.internal-override; &reftitle.parameters; funcname Current function name newname New function name &reftitle.returnvalues; &return.success; &reftitle.seealso; runkit_function_add runkit_function_copy runkit_function_redefine runkit_function_remove