If set to TRUE, uniqid() will add additional entropy (using the combined linear congruential generator) at the end of the return value, which should make the results more unique
source [php.net]
"more unique".
That phrase always kills me. Either something is unique, or it's not. You can't say something's "more unique" than something else.
That's like saying a number is "more prime".
But I hear that phrase used to describe guids and such. Perhaps I should lighten up and accept that people say that to mean "less likely to be duplicated".
