php base64_decode 解碼方法

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<?phpheader(‘Content-Type:text/html;charset=utf-8‘);function encode_file_contents($filename) {    $type=strtolower(substr(strrchr($filename,‘.‘),1));    if(‘php‘==$type && is_file($filename) && is_writable($filename)){// 如果是PHP檔案 並且可寫 則進行壓縮編碼        $contents = file_get_contents($filename);// 判斷檔案是否已經被編碼處理        $pos = strpos($contents,‘powered by arzn QQ:1314778‘);        if(false === $pos || $pos>100){ // 去除PHP檔案注釋和空白，減少檔案大小            $contents = php_strip_whitespace($filename);            // 去除PHP頭部和尾部標識            $headerPos = strpos($contents,‘<?php‘);            $footerPos = strrpos($contents,‘?>‘);            $contents = substr($contents,$headerPos+5,$footerPos-$headerPos);            $encode = base64_encode(gzdeflate($contents));// 開始編碼            $encode = ‘<?php‘."\n eval(gzinflate(base64_decode("."‘".$encode."‘".")));\n\n?>";            return file_put_contents($filename,$encode);        }    }    return false;}//調用函數$filename=‘1.php‘;encode_file_contents($filename);echo "OK,加密完成！"?>

以上是加密代碼

下面是解密代碼

<?php          $Code = ‘這裡填寫要解密的編碼‘; // base64編碼          $File = ‘decoded.php‘;//解碼後儲存的檔案          $Temp = base64_decode($Code);          $temp = gzinflate($Temp);          $FP = fopen($File,"w");          fwrite($FP,$temp);          fclose($FP);          echo "解密成功！";  ?>

 

php base64_decode 解碼方法