The srand() function seeds the random number generator for rand().
This function should be called only once per script, and it must be called before any calls to rand().
|seed||Optional. Seed number for the random number generator. If omitted, a random value is used.|
Note: In PHP 4.2.0 and later, there is no need to seed the random generator with srand(). This is done automatically.
Tip: The greater the randomness of the seed, the more random number you'll get. A suitable number to seed this function with, is mktime().
In this example we will seed the random number generator:
The output of the code above could be:
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