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发表于 2013-4-27 08:12:26
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显示全部楼层
<?php
$url[0] = "http://www.hao123.com/";
$url[1] = "http://www.baidu.com/ ";
$url[2] = "http://www.google.cn/ ";
srand ((double)microtime()*1000000);
$randomnum = rand(0, count($url)-1);
header ("Location: $url[$randomnum]");
?>
srand ((double)microtime()*1000000);//这句是取一个随机数种子,产生随机数用的
$randomnum = rand(0, count($url)-1);//这句是产生一个0和url数量-1之间的随机数,也就是上面的地址数组的下标
header ("Location: $url[$randomnum]");//这句是跳转指令
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