Beginner, questions about post value passing,

Cainiao asked for help. I wrote a simple program about post value transfer, online, etc. online, but I couldn't run the desired results. please refer to form. php & lt; form & nbsp; name = "form1" & nbsp; method = "post" & nbsp; action = "form1.php" & gt; & lt; table & nbsp; width = "40 Cainiao for help, questions about post value transfer, online, etc.
I wrote a simple program, but I couldn't run the desired results. please take a look.
Form. php

Form1.php

Form3.php
If ($ _ POST ["Submit"]! = ""){
Echo "your choice is:". $ _ POST [checkbox];
}
?>
Running result: enter java * php *. net in from. php.
Why can't I output the content in the selection box selected in form2.php in form3.php but only the checkbod?
------ Solution --------------------
Only the value of the value attribute will be submitted in the past, so it should be changed:
While (list ($ name, $ value) = each ($ data )){
Echo' ';
Echo $ value. "\ n ";
}