我在两个文件中分别有以下代码
文件一.php
<HTML>
<BODY>
<FORM ACTION="two.php" METHOD="POST">
Age: <INPUT TYPE="text" NAME="age">
<INPUT TYPE="submit" VALUE="OK">
</FORM>
</BODY>
</HTML>
文件 dos.php
<HTML>
<BODY>
<?PHP
print ("The age is: $age");
?>
</BODY>
</HTML>
年龄变量无法识别，有人知道修复吗？
It's not recognized because you don't create it. Variables don't magically appear in PHP1. You need to get that value from the $_POST superglobal http://php.net/manual/en/reserved.variables.post.php:
<HTML>
<BODY>
<?PHP
$age = $_POST['age'];
print ("The age is: $age");
?>
</BODY>
</HTML>
1 Anymore. They used to when register_globals http://php.net/manual/en/security.globals.php existed. But that has been obsolete since long before you started coding.
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