This article mainly introduces the PHP custom hash function, example analysis of the hash function implementation skills, can achieve a simple encryption function, with a certain reference value, the need for friends can refer to the next
This paper introduces the implementation method of PHP custom hash function. The specific analysis is as follows:
This demonstrates a simple hash algorithm implemented by PHP, which can be used for encryption, but this function is too simple to decrypt
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 had a number that represents the //content of the string return $n ;}
Call Method:
$TestString = ' www.jb51.net ';p rint simplehash ($TestString); returns:1082
Summary : The above is the entire content of this article, I hope to be able to help you learn.
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