php自定义hash函数实例

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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; $c < strlen($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;

}

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$TestString = 'www.jb51.net';

print SimpleHash($TestString);

// returns: 1082