<code><span><span><?php</span><span>/***@FileName rand.php 抽中红包概率测试**/</span>header(<span>"Content-type: text/html; charset=utf-8"</span>); <span>/*** 抽奖*<span> @param</span> int $total 1为百分百中奖 2为二分之一中奖率 3为三分之一中奖率 以此<mark>@本文来源gaodaimacom搞#代%码@网-</mark><strong>搞代gaodaima码</strong>类推...*/</span><span><span>function</span><span>getReward</span><span>(<span>$total</span>=<span>10</span>)</span>{</span><span>if</span>(<span>$total</span> == <span>1</span>){ <span>return</span><span>1</span>;}<span>$win1</span> = (<span>$total</span>-<span>1</span>)/<span>100</span>;<span>$other</span> = (<span>$total</span>-<span>1</span>)-<span>$win1</span>;<span>$return</span> = <span>array</span>();<span>for</span> (<span>$i</span>=<span>0</span>;<span>$i</span><<span>$win1</span>;<span>$i</span>++){<span>$return</span>[] = <span>1</span>;<span>//中奖</span>}<span>for</span> (<span>$n</span>=<span>0</span>;<span>$n</span><<span>$other</span>;<span>$n</span>++){<span>$return</span>[] = <span>0</span>;<span>//不中奖</span>}<span>//print_r($return);</span>shuffle(<span>$return</span>);<span>//把数组中的元素按随机顺序重新排序</span><span>return</span><span>$return</span>[array_rand(<span>$return</span>)];}<span>$data</span> = getReward();<span>echo</span><span>$data</span>;<span>die</span>;<span>?></span></span></code>
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