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rand
(php 3, php 4)

rand ()
rand()

rand () 函数返回介于0和1之间的伪随机数 。
the rand() function returns a pseudo-random number between 0 and 1.

例如： rand () 可能返回 0. 78309922...
rand() equals for example 0.78309922...

see also shuffle() and rand().
see also shuffle() and rand().

ingersoll-rand sales company ltd
ingersoll-rand sales company ltd

see also rand(), getrandmax() and mt_srand().
see also rand(), getrandmax() and mt_srand().

returns the maximum value that can be returned by a call to rand().
returns the maximum value that can be returned by a call to rand().

see also mt_srand(), mt_getrandmax() and rand().
see also mt_srand(), mt_getrandmax() and rand().

$token = md5(uniqid("")); // no prefix $better_token = md5(uniqid(rand(),1)); // better, difficult to guess
$token = md5( uniqid("")); / / no prefix $better_token = md5(uniqid(rand(),1)); / / better, difficult to guess