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php自定义hash函数实例

   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

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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

$n += ord($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:

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$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。

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