Using php and js to implement regular password matching of numbers and letters

This time I will bring you how to use php and js to regularly match passwords with numbers and letters. Use php and js to regularly match passwords with numbers and letters. Let’s take a look at the case. The example in this article describes the function of regular matching passwords that can only be a combination of numbers and letters. Share it with everyone for your reference, the details are as follows:

Password requirements:

1. It cannot be all numbers

2. It cannot be all letters3. Must be a combination of numbers and letters
4. Does not contain
special characters
5. The password must be a string of 6-30 characters

/**
 * @desc get_pwd_strength()im:根据密码字符串判断密码结构
 * @param (string)$mobile
 * return 返回：$msg
 */
function get_pwd_strength($pwd){
  if (strlen($pwd)>30 || strlen($pwd)<6)
  {
    return "密码必须为6-30位的字符串";
  }
  if(preg_match("/^\d*$/",$pwd))
  {
    return "密码必须包含字母,强度:弱";//全数字
  }
  if(preg_match("/^[a-z]*$/i",$pwd))
  {
    return "密码必须包含数字,强度:中";//全字母
  }
  if(!preg_match("/^[a-z\d]*$/i",$pwd))
  {
    return "密码只能包含数字和字母,强度:强";//有数字有字母 ";
  }
}

js Regular matching

/**
 * 检测密码强度,必须由数字与字母组合,至少6位的字符串。
 */
$.checkPwd = function(v){
 v=$.trim(v);
 if(v.length<6||v.length>30){
    return "密码长度为6-30位";
  }
  if(/^\d+$/.test(v))
  {
    return "全数字";
  }
  if(/^[a-z]+$/i.test(v))
  {
    return "全字母";
  }
  if(!/^[A-Za-z0-9]+$/.test(v))
  {
    return "只能含有数字有字母";
  }
  return "正确";
};

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

Recommended reading:

How to match consecutive numbers with regular expressions

##Development experience of implementing minimum matching with regular expressions

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