PHP 忒聊 綴豖 ヶ輛 mt_srand (PHP 3 = 3.0.6, PHP 4) Description Seeds the random number generator with seed. // seed with microseconds function make_seed() {list($usec, $sec) = explode(' ', microtime()); return (float) $sec + ((float) $usec * 100000);} mt_srand(make_seed()); $randval = mt_rand(); 蛁: Since PHP 4.2.0 it's no longer necessary to seed the random number generator before using it. See also mt_rand(), mt_getrandmax() and srand(). 綴豖 れ萸 ヶ輛 mt_rand 奻珨撰 octdec