Php uses Firefox poster to simulate post submission problems

Php uses Firefox poster to simulate post submission. I use Firefox poster to simulate post submission. The content submitted to c. phpc. php is & lt ;? Phpprint_r ($ _ POST );? & Gt; use Firefox's poster tool and enter the following content in the url:. comc. phpContent-Type: & nbsp; set texthtml & nbsp; submitted php to simulate post submission using Firefox poster
I used Firefox's poster tool to simulate post submission. Submitted to c. php
C. php content is
Print_r ($ _ POST );
?>

Fill in the following content http://a.com/c.php in the url with Firefox's poster tool

Content-Type: set text/html
The submitted seckey is 123, and the val is 123.
I submitted by post, and the returned content is array ()

I changed c. php to the following content and printed $ _ GET
Print_r ($ _ GET );
?>

I press get to submit and the returned content is array ('seckey' => '000000', 'Val' => '000000 ')

What is the problem. Why does POST submit the previous content, and the print array is empty?
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