Home  >  Article  >  php教程  >  php自定义hash函数实例,phphash函数

php自定义hash函数实例,phphash函数

WBOY
WBOYOriginal
2016-06-13 09:05:17849browse

php自定义hash函数实例,phphash函数

本文实例讲述了php自定义hash函数实现方法。分享给大家供大家参考。具体分析如下:

这里演示php实现的一个简单hash算法,可以用来加密,不过这个函数过于简单,不能用来解密

function SimpleHash($str){  
  $n = 0;
  // The magic happens here:
  // I just loop trough all letters and add the
  // ASCII value to a integer variable. 
  for ($c=0; $c < strlen($str); $c++)
    $n += ord($str[$c]);
  // After we went trough all letters
  // we have a number that represents the
  // content of the string
  return $n;
}

调用方法:

$TestString = 'www.jb51.net';
print SimpleHash($TestString); 
// returns: 1082

希望本文所述对大家的php程序设计有所帮助。

Statement:
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