DEMO:
unique_rand(最小值,最大值,输出数量)
//生成指定区间不重复随机正整数 function unique_rand($min, $max, $num) { $count = 0; $return = array(); while ($count < $num) { $return[] = mt_rand($min, $max); $return = array_flip(array_flip($return)); $count = count($return); } //打乱数组,重新赋予数组新的下标 shuffle($return); return $return; }
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