How to implement simple digital verification code in PHP

This article mainly introduces the method of implementing simple digital verification code in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.

Randomly generated 5-digit verification code written in PHP

$yzm = "";
  for($i=0;$i<5;$i++)
  {
  $a = rand(0,9);
  $yzm.= $a;
  }
echo $yzm;

The above example of a simple numeric verification code written in PHP is a small I have compiled all the content shared with you, hoping to give you a reference.

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