Description:
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i got a suggestion on Function Handling functions
for better standardization and better php

eg.
call_user_func_array() can be changed to func_call_array()
// since user might call internal function, not necessary user functions

call_user_func() can be changed to func_call()
// since user might call internal function also

create_function() can be changed to func_create()

func_get_arg() can be changed to func_arg()
// no need the get word because we can't post or give

func_get_args() can be changed to func_args()
// like the above reason, because we can't post or give
// and we already post/give in call_user_func()

func_num_args() can be changed to func_args_num()
// follow the above standard

function_exists() can be changed to func_exists()

get_defined_functions() can be changed to func_int_list() and func_usr_list()
// since user no need to copy an array or unset to get the user or internal functions list

register_shutdown_function() can be changed to func_reg_shutdown()

register_tick_function() can be changed to func_tick_reg()

unregister_tick_function() can be changed to func_tick_unreg()