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PHP implements simple symmetric encryption and decryption methods

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Release： 2016-07-25 08:45:29

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/**
* Universal encryption
* @param String $string The string that needs to be encrypted
* @param String $skey Encrypted EKY
* @return String
*/
function enCode($string = '', $skey = 'echounion') {
$skey = array_reverse(str_split($skey));
$strArr = str_split(base64_encode($string));
$strCount = count($strArr);
foreach ($skey as $key => $value) {
$key < $strCount && $strArr[$key].=$value;
}
return str_replace('=', 'O0O0O', join('', $strArr));
}
/**
* Universal decryption
* @param String $string The string to be decrypted
* @param String $skey Decryption KEY
* @return String
*/
function deCode($string = '', $skey = 'echounion') {
$skey = array_reverse(str_split($skey));
$strArr = str_split(str_replace('O0O0O', '=', $string), 2);
$strCount = count($strArr);
foreach ($skey as $key => $value) {
$key < $strCount && $strArr[$key] = rtrim($strArr[$key], $value);
}
return base64_decode(join('', $strArr));
}

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PHP实现简单的对称加密和解密方法

source：php.cn

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