php获取四位字母和数字的随机数的实现方法

大佬教程收集整理的这篇文章主要介绍了php获取四位字母和数字的随机数的实现方法，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

那么我们知道在PHP中简单的四位数的纯数字验证可以用rand(1000,9999)就可以了,但如果我们要得到字母和数字的随机四位数，那我们该如何写函数呢？下面胡鹏博客在PHP资料栏目下给出一个完整的实例。

php;">
<>PHP
function GetfourStr($len) 
{ 
  $chars_array = array( 
    "0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z",); 
  $charsLen = count($chars_array) - 1; 
$outputstr = "";

for ($i=0; $i<$len; $i++)

{

$outputstr .= $chars_arraY[R_563_11845@t_rand(0,$charsLen)];

}

return $outputstr;

}

echo GetfourStr(4);

?>

大佬总结

以上是大佬教程为你收集整理的php获取四位字母和数字的随机数的实现方法全部内容，希望文章能够帮你解决php获取四位字母和数字的随机数的实现方法所遇到的程序开发问题。

如果觉得大佬教程网站内容还不错，欢迎将大佬教程推荐给程序员好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。