php 简单洗牌算法_PHP教程

2016-07-13 10:37 976浏览原创

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print? 01 <code class="plain"><?php 02 <code class="comments">/** 03 <code class="spaces"> <code class="comments">* @author phpman.cn 04 <code class="spaces"> <code class="comments">* @date 2012/12/04 05 <code class="spaces"> <code class="comments">* @todo 简单洗牌算法 06 <code class="spaces"> <code class="comments">*/ 07 08 <code class="variable">$card_num<code class="plain">=54; <code class="comments">//牌数 09 <code class="plain">print_r(wash_card(<code class="variable">$card_num<code class="plain">)); 10 11 <code class="keyword">function <code class="plain">wash_card(<code class="variable">$card_num<code class="plain">) 12 <code class="plain">{ 13 <code class="spaces"> <code class="variable">$cards<code class="plain">=<code class="variable">$tmp<code class="plain">=<code class="keyword">array<code class="plain">(); 14 <code class="spaces"> <code class="keyword">for<code class="plain">(<code class="variable">$i<code class="plain">=0;<code class="variable">$i

<code class="variable">$card_num<code class="plain">;<code class="variable">$i<code class="plain">++){

15 <code class="spaces"> <code class="variable">$tmp<code class="plain">[<code class="variable">$i<code class="plain">]=<code class="variable">$i<code class="plain">; 16 <code class="spaces"> <code class="plain">} 17 18 <code class="spaces"> <code class="keyword">for<code class="plain">(<code class="variable">$i<code class="plain">=0;<code class="variable">$i

<code class="variable">$card_num<code class="plain">;<code class="variable">$i<code class="plain">++){

19 <code class="spaces"> <code class="variable">$index<code class="plain">=rand(0,<code class="variable">$card_num<code class="plain">-<code class="variable">$i<code class="plain">-1); 20 <code class="spaces"> <code class="variable">$cards<code class="plain">[<code class="variable">$i<code class="plain">]=<code class="variable">$tmp<code class="plain">[<code class="variable">$index<code class="plain">]; 21 <code class="spaces"> <code class="plain">unset(<code class="variable">$tmp<code class="plain">[<code class="variable">$index<code class="plain">]); 22 <code class="spaces"> <code class="variable">$tmp<code class="plain">=<code class="functions">array_values<code class="plain">(<code class="variable">$tmp<code class="plain">); 23 <code class="spaces"> <code class="plain">} 24 <code class="spaces"> <code class="keyword">return <code class="variable">$cards<code class="plain">; 25 <code class="plain">} 26 <code class="plain">?>