PHP Manual
Prev |  | Next

# rand

rand -- Generate a random value

## Description

`int rand`( [int min] , [int max] );

If called without the optional `min`, `max` arguments rand() returns a pseudo-random value between 0 and `RAND_MAX`. If you want a random number between 5 and 15 (inclusive), for example, use `rand (5, 15)`.

Remember to seed the random number generator before use with srand().

> Note: In versions before 3.0.7 the meaning of `max` was `range`. To get the same results in these versions the short example should be `rand (5, 11)` to get a random number between 5 und 15.

See also srand(), getrandmax(), mt_rand(), mt_srand() and mt_getrandmax().

Prev | Home | Next
pow | Up | round