Home > Backend Development > PHP Tutorial > php密码生成类实例_php技巧

php密码生成类实例_php技巧

WBOY
Release: 2016-05-16 20:35:42
Original
991 people have browsed it

本文实例讲述了php实现的密码生成类及其应用方法,分享给大家供大家参考。具体分析如下:

一、php密码生成类功能:

1.可设定密码长度。
2.可设定要生成的密码个数,批量生成。
3.可以指定密码的规则,字母,数字,特殊字符等。

二、用法:

GeneratePassword.class.php类文件如下:

<&#63;php 
/** Generate Password class,根据指定规则生成password 
*  Date:  2013-12-23 
*  Author: fdipzone 
*  Ver:  1.0 
* 
*  Func: 
*  public batchGenerate 批量生成密码 
*  private generate   生成单个密码 
*  private getLetter   获取字母  
*  private getNumber   获取数字 
*  private getSpecial  获取特殊字符 
*/ 
 
class GeneratePassword{ // class start 
 
  // 密码的规则 default 
  private $_rule = array( 
   'letter' => 1, 
   'number' => 1, 
   'special' => 1 
  );
 
  private $_length = 8;         // 密码长度 
  private $_num = 1;          // 密码数量 
  private $_special = '!@#$%^&*()_+=-'; //允许的特殊字符 
 
  /** 初始化 
  * @param int  $length 密码长度 
  * @param int  $num   密码数量 
  * @param Array $rule  密码规则 
  * @param String $special 允许的特殊字符 
  */ 
  public function __construct($length=8, $num=1, $rule=array(), $special=''){ 
 
    if(isset($length) && is_numeric($length) && $length>=4 && $length<=50){ // 长度 
      $this->_length = $length; 
    } 
 
    if(isset($num) && is_numeric($num) && $num>0 && $num<=100){ // 数量 
      $this->_num = $num; 
    } 
 
    if(isset($special) && is_string($special) && $special!=''){ // 特殊字符 
      $this->_special = $special; 
    } 
 
    if($rule){ // 规则 
 
      $t_rule = array(); 
 
      if(isset($rule['letter']) && in_array($rule['letter'], array(1,2,3,4,5))){ // 1:可选用 2:必须 3:必须小写 4:必须大写 5:大小写都必须 
        $t_rule['letter'] = $rule['letter']; 
      } 
 
      if(isset($rule['number']) && in_array($rule['number'], array(1,2))){ // 1:可选用 2:必须 
        $t_rule['number'] = $rule['number']; 
      } 
 
      if(isset($rule['special']) && in_array($rule['special'], array(1,2))){ // 1:可选用 2:必须 
        $t_rule['special'] = $rule['special']; 
      } 
 
      if($t_rule){ 
        $this->_rule = $t_rule; 
      } 
    } 
  } 
 
  /** 批量生成密码 
  * @return Array 
  */ 
  public function batchGenerate(){ 
    $passwords = array(); 
    for($i=0; $i<$this->_num; $i++){ 
      array_push($passwords, $this->generate()); 
    } 
    return $passwords; 
  } 
 
  /** 生成单个密码 
  * @return String 
  */ 
  private function generate(){ 
 
    $password = ''; 
    $pool = ''; 
    $force_pool = ''; 
 
    if(isset($this->_rule['letter'])){ 
 
      $letter = $this->getLetter(); 
 
      switch($this->_rule['letter']){ 
        case 2: 
          $force_pool .= substr($letter, mt_rand(0,strlen($letter)-1), 1); 
          break; 
 
        case 3: 
          $force_pool .= strtolower(substr($letter, mt_rand(0,strlen($letter)-1), 1)); 
          $letter = strtolower($letter); 
          break; 
 
        case 4: 
          $force_pool .= strtoupper(substr($letter, mt_rand(0,strlen($letter)-1), 1)); 
          $letter = strtoupper($letter); 
          break; 
 
        case 5: 
          $force_pool .= strtolower(substr($letter, mt_rand(0,strlen($letter)-1), 1)); 
          $force_pool .= strtoupper(substr($letter, mt_rand(0,strlen($letter)-1), 1)); 
          break; 
      } 
 
      $pool .= $letter; 
    } 
    if(isset($this->_rule['number'])){ 
 
      $number = $this->getNumber(); 
 
      switch($this->_rule['number']){ 
        case 2: 
          $force_pool .= substr($number, mt_rand(0,strlen($number)-1), 1); 
          break; 
      } 
 
      $pool .= $number; 
    } 
 
    if(isset($this->_rule['special'])){ 
 
      $special = $this->getSpecial(); 
 
      switch($this->_rule['special']){ 
        case 2: 
          $force_pool .= substr($special, mt_rand(0,strlen($special)-1), 1); 
          break; 
      } 
      $pool .= $special; 
    } 
 
    $pool = str_shuffle($pool); // 随机打乱 
 
    $password = str_shuffle($force_pool. substr($pool, 0, $this->_length-strlen($force_pool))); // 再次随机打乱 
 
    return $password; 
  } 
 
  /** 字母 */ 
  private function getLetter(){ 
    $letter = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz'; 
    return $letter; 
  } 
 
  /** 数字 */ 
  private function getNumber(){ 
    $number = '1234567890'; 
    return $number; 
  } 
 
  /** 特殊字符 */ 
  private function getSpecial(){ 
    $special = $this->_special; 
    return $special; 
  } 
} // class end 
 
&#63;> 

Copy after login

demo示例程序如下:

<&#63;php 
require 'GeneratePassword.class.php'; 
 
$rule = array( 
  'letter' => 5, // 必须含有大小写字母 
  'number' => 2, // 必须含有数字 
  'special' => 2 // 必须含有特殊字符 
); 
 
$special = '!@#$%_-'; 
 
$obj = new GeneratePassword(8, 10, $rule, $special); 
$passwords = $obj->batchGenerate(); 
 
echo implode('<br>', $passwords); 
&#63;> 

Copy after login

本文完整源码可点击此处本站下载

相信本文所述对大家的C#程序设计有一定的借鉴价值。

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template