请使者帮忙解觉点问题！

cnw168

我做了一个将html文件格转成js格式的程序，如下。

1. <?php
   
2. //传递要修改了文本给变量sing
   
3. if (isset($_POST["zdz_text"])){
   
4. $sing=$_POST["zdz_text"];
   
5. }else{
   
6. $sing="";
   
7. }
   
8. 
   
9. //将文本进行递换
   
10. 
    
11. //判断是否包函双引号
    
12. if (preg_match("/\"/",$sing)){
    
13. $sing=preg_replace("/\"/","\"",$sing);
    
14. }
    
15. //判断是否包函小数点
    
16. if (preg_match("/\./",$sing)){
    
17. $sing=preg_replace("/\./","\.",$sing);
    
18. }
    
19. //判断是否包函等于号
    
20. if (preg_match("/\=/",$sing)){
    
21. $sing=preg_replace("/\=/","\=",$sing);
    
22. }
    
23. //判断是否包函加号
    
24. if (preg_match("/\+/",$sing)){
    
25. $sing=preg_replace("/\+/","\+",$sing);
    
26. }
    
27. //判断是否包函斜杠
    
28. if (preg_match("/{\\}/",$sing)){
    
29. $sing=preg_replace("/{\\}/","\\",$sing);
    
30. }
    
31. //判断是否包函换行符
    
32. if (preg_match("/\r\n/",$sing)){
    
33. $sing=preg_replace("/\r\n/","\");\ndocument.writeln(\"",$sing);
    
34. }
    
35. //判断是否包函<script
    
36. if (preg_match("/<script/",$sing)){
    
37. $sing=preg_replace("/\<script/","<\"+\"script\"+\"",$sing);
    
38. }
    
39. //判断是否包函</script>;
    
40. if (preg_match("/<\/script>;/",$sing)){
    
41. $sing=preg_replace("/\<\/script\>;/","<\"+\"\/script\"+\">;",$sing);
    
42. }
    
43. //判断是否包函<textarea
    
44. if (preg_match("/<textarea/",$sing)){
    
45. $sing=preg_replace("/\<textarea/","<\"+\"textarea\"+\"",$sing);
    
46. }
    
47. //判断是否包函</textarea>;
    
48. if (preg_match("/<\/textarea>;/",$sing)){
    
49. $sing=preg_replace("/\<\/textarea\>;/","<\"+\"\/textarea\"+\">;",$sing);
    
50. }
    
51. $value="<script language=\"JavaScript\" type=\"text/JavaScript\">;\n document.writeln(\"".$sing."\");\n</script>;";
    
52. ?>;
    
53. <form name="form1" method="post" action="">;
    
54.   <p align="center">;
    
55.     <textarea name="zdz_text" cols="50" rows="15">;
    
56. <?php
    
57. if (isset($_POST["zdz_text"])){
    
58. echo $value;
    
59. }else{
    
60. echo "";
    
61. }
    
62. ?>;
    
63. </textarea>;
    
64.   </p>;
    
65.   <p align="center">;
    
66.     <input type="submit" name="Submit" value="转  换">;
    
67.     </p>;
    
68. </form>;

复制代码

但是问题出在。如果你输入一个字符进行了多次换算后就会什么也不显示了。你要是换算的次数少上点它就正常。请问一下这是JS原因还是我写的程序有什么问题。再问一下上面的程序可以将任何html文档都成功转换吗，不会有什么bug吧？

cnw168

我现在发现还是有好多页面无法转换成功。
请问一下HTML代码有多少标志需要转换？

xuzuning

至于那么麻烦吗？看看这个
<?php
if(!isset($_POST['code'])) {
$code = <<< TEXT
<?php
phpinfo();
?>;
<form>;
<input type=text name="my">;
<input type=submit>;
</form>;
<script>;
function test() {
alert("你好";
}
</script>;
TEXT;
}else {
  if(get_magic_quotes_gpc())
    $code = StripSlashes($_POST['code']);
  else
    $code = $_POST['code'];
}
echo "<form method=post>;";
echo "<textarea name=code cols=40 rows=10>;".htmlspecialchars($code)."</textarea>;";
echo "<input type=submit>;</form>;";
?>;

cnw168

1. <?php
   
2. if(!isset($_POST['code'])) {
   
3. $code = <<< TEXT
   
4. <?php
   
5. phpinfo();
   
6. ?>;
   
7. <form>;
   
8. <input type=text name="my">;
   
9. <input type=submit>;
   
10. </form>;
    
11. <script>;
    
12. function test() {
    
13. alert("你好");
    
14. }
    
15. </script>;
    
16. TEXT;
    
17. }else {
    
18. if(get_magic_quotes_gpc())
    
19. $code = StripSlashes($_POST['code']);
    
20. else
    
21. $code = $_POST['code'];
    
22. }
    
23. echo "<form method=post>;";
    
24. echo "<textarea name=code cols=40 rows=10>;".htmlspecialchars($code)."</textarea>;";
    
25. echo "<input type=submit>;</form>;";
    
26. ?>;
    

复制代码

对不起，本人水平有限没看懂你的程序，运行了一下多处报错。问一下他是干什么用的？请加上注解好吗，我在这谢过了！

cnw168

我说的是转成JS的而你的代码好象转成了HTML可以输出的格式了

cnw168

转换到第五次代码就不执行了。

1. 
   
2. <script language="JavaScript" type="text/JavaScript">;
   
3. document.writeln("<"+"script"+" language\=\"JavaScript\" type\=\"text/JavaScript\">;");
   
4. document.writeln(" document\.writeln(\"<\"\+\"script\"\+\" language\\\=\\\"JavaScript\\\" type\\\=\\\"text/JavaScript\\\">;\");");
   
5. document.writeln("document\.writeln(\" document\\\.writeln(\\\"<\\\"\\\+\\\"script\\\"\\\+\\\" language\\\\\\\=\\\\\\\"JavaScript\\\\\\\" type\\\\\\\=\\\\\\\"text/JavaScript\\\\\\\">;\\\");\");");
   
6. document.writeln("document\.writeln(\"document\\\.writeln(\\\" document\\\\\\\.writeln(\\\\\\\"<\\\\\\\"\\\\\\\+\\\\\\\"script\\\\\\\"\\\\\\\+\\\\\\\" language\\\\\\\\\\\\\\\=\\\\\\\\\\\\\\\"JavaScript\\\\\\\\\\\\\\\" type\\\\\\\\\\\\\\\=\\\\\\\\\\\\\\\"text/JavaScript\\\\\\\\\\\\\\\">;\\\\\\\");\\\");\");");
   
7. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\" document\\\\\\\\\\\\\\\.writeln(\\\\\\\\\\\\\\\"<\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\+\\\\\\\\\\\\\\\"script\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\+\\\\\\\\\\\\\\\">;\\\\\\\\\\\\\\\");\\\\\\\");\\\");\");");
   
8. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\"document\\\\\\\\\\\\\\\.writeln(\\\\\\\\\\\\\\\"alert(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"成功\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\");\\\\\\\\\\\\\\\");\\\\\\\");\\\");\");");
   
9. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\"document\\\\\\\\\\\\\\\.writeln(\\\\\\\\\\\\\\\"<\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\+\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\\/script\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\+\\\\\\\\\\\\\\\">;\\\\\\\\\\\\\\\");\\\\\\\");\\\");\");");
   
10. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\"<\\\\\\\"\\\\\\\+\\\\\\\"\\\\\\\\/script\\\\\\\"\\\\\\\+\\\\\\\">;\\\\\\\");\\\");\");");
    
11. document.writeln("document\.writeln(\"document\\\.writeln(\\\"<\\\"\\\+\\\"\\\\/script\\\"\\\+\\\">;\\\");\");");
    
12. document.writeln("document\.writeln(\"<\"\+\"\\/script\"\+\">;\");");
    
13. document.writeln("<"+"\/script"+">;");
    
14. </script>;
    
15. 
    

复制代码

转换了4次还正常执行

1. 
   
2. <script language="JavaScript" type="text/JavaScript">;
   
3. document.writeln("<"+"script"+" language\=\"JavaScript\" type\=\"text/JavaScript\">;");
   
4. document.writeln(" document\.writeln(\"<\"\+\"script\"\+\" language\\\=\\\"JavaScript\\\" type\\\=\\\"text/JavaScript\\\">;\");");
   
5. document.writeln("document\.writeln(\" document\\\.writeln(\\\"<\\\"\\\+\\\"script\\\"\\\+\\\" language\\\\\\\=\\\\\\\"JavaScript\\\\\\\" type\\\\\\\=\\\\\\\"text/JavaScript\\\\\\\">;\\\");\");");
   
6. document.writeln("document\.writeln(\"document\\\.writeln(\\\" document\\\\\\\.writeln(\\\\\\\"<\\\\\\\"\\\\\\\+\\\\\\\"script\\\\\\\"\\\\\\\+\\\\\\\">;\\\\\\\");\\\");\");");
   
7. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\"alert(\\\\\\\\\\\\\\\"成功\\\\\\\\\\\\\\\");\\\\\\\");\\\");\");");
   
8. document.writeln("document\.writeln(\"document\\\.writeln(\\\"document\\\\\\\.writeln(\\\\\\\"<\\\\\\\"\\\\\\\+\\\\\\\"\\\\\\\\/script\\\\\\\"\\\\\\\+\\\\\\\">;\\\\\\\");\\\");\");");
   
9. document.writeln("document\.writeln(\"document\\\.writeln(\\\"<\\\"\\\+\\\"\\\\/script\\\"\\\+\\\">;\\\");\");");
   
10. document.writeln("document\.writeln(\"<\"\+\"\\/script\"\+\">;\");");
    
11. document.writeln("<"+"\/script"+">;");
    
12. </script>;
    

复制代码

HonestQiao

你怎么可以这么转换呢？

应位你是要做多次转换的，那么建议开始转换成特殊的，最后把特殊的转贷需要的

cnw168

哪上面转换用的程序写对了吗？写完整了吗？请高手指点！