(PHP 4, PHP 5)
srand — Seed the random number generator
Seeds the random number generator with seed or with a random value if no seed is given.
Note: As of PHP 4.2.0, there is no need to seed the random number generator with srand() or mt_srand() as this is now done automatically.
Optional seed value
Example #1 srand() example
<?php// seed with microsecondsfunction make_seed(){ list($usec, $sec) = explode(' ', microtime()); return (float) $sec + ((float) $usec * 100000);}srand(make_seed());$randval = rand();?>
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