PHP base64+gzinflate压缩编码和解码代码

雪林

base64+gzinflate压缩编码（加密）过的文件通常是以 <? eval(gzinflate(base64_decode( 为头的一个php文件。文中给出了编码和解码的代码。
CODE:

1. <?php
   
2. function encode_file_contents($filename) {
   
3. $type=strtolower(substr(strrchr($filename,'.'),1));
   
4. if('php'==$type && is_file($filename) && is_writable($filename)){// 如果是PHP文件 并且可写 则进行压缩编码
   
5. $contents = file_get_contents($filename);// 判断文件是否已经被编码处理
   
6. $pos = strpos($contents,'/*Protected by 草名);
   
7. if(false === $pos || $pos>100){ // 去除PHP文件注释和空白，减少文件大小
   
8. $contents = php_strip_whitespace($filename);
   
9. // 去除PHP头部和尾部标识
   
10. $headerPos = strpos($contents,'<?php');
    
11. $footerPos = strrpos($contents,'?>');
    
12. $contents = substr($contents,$headerPos+5,$footerPos-$headerPos);
    
13. $encode = base64_encode(gzdeflate($contents));// 开始编码
    
14. $encode = '<?php'." /*Protected by 草名 eval(gzinflate(base64_decode(".$encode.")));\n /*Reverse engineering is illegal and strictly prohibited- (C)草名 Cryptation 2008*/ \n?>";
    
15. return file_put_contents($filename,$encode);
    
16. }
    
17. }
    
18. return false;
    
19. }
    
20. //调用函数
    
21. $filename='g:\我的文档\桌面\test.php';
    
22. encode_file_contents($filename);
    
23. ?>

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1. <?php
   
2. function encode_file_contents($filename) {
   
3. $type=strtolower(substr(strrchr($filename,'.'),1));
   
4. if('php'==$type && is_file($filename) && is_writable($filename)){// 如果是PHP文件 并且可写 则进行压缩编码
   
5. $contents = file_get_contents($filename);// 判断文件是否已经被编码处理
   
6. $pos = strpos($contents,'/*Protected by 草名);
   
7. if(false === $pos || $pos>100){ // 去除PHP文件注释和空白，减少文件大小
   
8. $contents = php_strip_whitespace($filename);
   
9. // 去除PHP头部和尾部标识
   
10. $headerPos = strpos($contents,'<?php');
    
11. $footerPos = strrpos($contents,'?>');
    
12. $contents = substr($contents,$headerPos+5,$footerPos-$headerPos);
    
13. $encode = base64_encode(gzdeflate($contents));// 开始编码
    
14. $encode = '<?php'." /*Protected by 草名 eval(gzinflate(base64_decode(".$encode.")));\n /*Reverse engineering is illegal and strictly prohibited- (C)草名 Cryptation 2008*/ \n?>";
    
15. return file_put_contents($filename,$encode);
    
16. }
    
17. }
    
18. return false;
    
19. }
    
20. //调用函数
    
21. $filename='g:\我的文档\桌面\test.php';
    
22. encode_file_contents($filename);
    
23. ?>

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压缩解码（解密）代码：
CODE:

1. <?php
   
2. $Code = '这里填写要解密的编码'; // base64编码
   
3. $File = 'test.php';//解码后保存的文件
   
4. $Temp = base64_decode($Code);
   
5. $temp = gzinflate($Temp);
   
6. $FP = fopen($File,"w");
   
7. fwrite($FP,$temp);
   
8. fclose($FP);
   
9. echo "解密成功！";
   
10. ?>

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