一个简单的PHP字符串加密解密函数
<?php /** * 通用加密 * @param String $string 需要加密的字串 * @param String $skey 加密EKY * @return String */ function enCode($string = '', $skey = 'hackhp') { $skey = array_reverse(str_split($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)); } /** * 通用解密 * @param String $string 需要解密的字串 * @param String $skey 解密KEY * @return String */ function deCode($string = '', $skey = 'hackhp') { $skey = array_reverse(str_split($skey)); $strArr = str_split(str_replace('O0O0O', '=', $string), 2); $strCount = count($strArr); foreach ($skey as $key => $value) { $key < $strCount && $strArr[$key] = $strArr[$key][0]; } return base64_decode(join('', $strArr)); } ?>