Create Auth Tokens with PHP
Working with OAuth and similar authentication protocols requires the use of temporary tokens which represent unique handshakes between multiple web services. These tokens must be unique, securely stored, and the longer, the better.
Since I've been out of the PHP game for a while, I was researching how to create such tokens without additional libraries. The following snippet does the trick:
// bin2hex(random_bytes($length)) $token = bin2hex(random_bytes(64)); /* Examples: 39e9289a5b8328ecc4286da11076748716c41ec7fb94839a689f7dac5cdf5ba8bdc9a9acdc95b95245f80a00d58c9575c203ceb541507cce40dd5a96e9399f4a 1c46538c712e9b5bf0fe43d692147004f617b494d004e29daaf33e4528f253db5d911a690856f0b77cfa98103c8231bffff869f179125d17d28e52bfadb9f205 ... */
... read the whole story at davidwalsh.name.