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A simple way to generate random numbers in php_php tips

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Release: 2016-05-16 20:09:27
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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;

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

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