PHP 判断密码强度

 
           $score = 0;
           if(preg_match("/[0-9]+/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[0-9]{3,}/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[a-z]+/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[a-z]{3,}/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[A-Z]+/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[A-Z]{3,}/",$str))
           {
              $score ++; 
           }
           if(preg_match("/[_|\-|+|=|*|!|@|#|$|%|^|&|(|)]+/",$str))
           {
              $score += 2; 
           }
           if(preg_match("/[_|\-|+|=|*|!|@|#|$|%|^|&|(|)]{3,}/",$str))
           {
              $score ++ ; 
           }
           if(strlen($str) >= 10)
           {
              $score ++; 
           }
           echo "<br>";
           echo $score;

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转载自www.cnblogs.com/caorui-log/p/10711487.html