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php产生随机数的两种方法实例代码 输出随机IP

(编辑:jimmy 日期: 2024/10/12 浏览:3 次 )

分享下php生成随机数的三种方法,生成1-10之间的不重复随机数,php生成不重复随机数的例子,需要的朋友参考下。

如何用php生成1-10之间的不重复随机数?

例1,使用shuffle函数生成随机数。

<" ";
}
"htmlcode">
<" ",$arr);
"htmlcode">
<" ";
 }
echo "<br/>";
$arr=array_values($return);// 获得数组的值 
foreach($arr as $key)
echo $key." ";
"htmlcode">
<"218","218","66","66","218","218","60","60","202","204","66","66","66","59","61","60","222","221","66","59","60","60","66","218","218","62","63","64","66","66","122","211"); 
$randarr= mt_rand(0,count($arr_1)-1); 
$ip1id = $arr_1[$randarr]; 
echo $ip1id; 
echo "."; 
echo $ip2id; 
echo "."; 
echo $ip3id; 
echo "."; 
echo $ip4id; 
"htmlcode">
<"http://66.249.89.99","http://66.249.89.104","http://74.125.71.105"); 
$randarr= mt_rand(0,count($arr_1)-1); 
$gip= $arr_1[$randarr]; 
echo $gip."$randarr"; 
?>
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