A simple way to generate random numbers in php, generate random numbers in php_PHP tutorial

How to simply generate random numbers in php, how to generate random numbers in php

The example in this article describes how to simply generate random numbers in php. Share it with everyone for your reference. The details are as follows:

<&#63;php
/**
 *生成随机数，可用户验证码
 *@param
 */
function randStr($m = 5) {
  $new_str = '';
  $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwsyz0123456789';
  $max=strlen($str)-1;
  for ($i = 1; $i <= $m; ++$i) {
    $new_str .=$str[mt_rand(0, $max)];
  }
  return $new_str;
}
//测试
$str = randStr(6);
echo $str;

I hope this article will be helpful to everyone’s PHP programming design.

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