get_random_bytes() bad resut?

HI! I try with $this->security->get_random_bytes(64) on CI3 on last commit, get a string with 64 chars, but only return an unreadable string with strangly codes and a lot of blank spaces.

To use this feature, server needs a special library installed?

Thanks.

If it failed, it would return FALSE. I'm not sure what you're expecting to receive from get_random_bytes() other than a string of random bytes the requested length...

Bonfire

Practical CodeIgniter 3
CodeIgniter Testing Guide

It returns bytes, not characters...

It returns bytes, not characters...

Not necessarily printable ASCII characters, to be more precise.

To make the result easier to work with (i.e. easy to copy into a config file), it may be converted to a hex string via bin2hex() and then unpacked via hex2bin() when used.