Newbie, ask a question about submitting PHP to this page

Newbie, ask the following piece of code for submitting a PHP file to this page. I want to submit it to this page for processing, but it is incorrect. how can I write it? & Lt; METAcontent = & quot; MSHTML6.00.2900.3492 & quot; name = GENERATOR & gt; & lt ;? New to phpecho 'aaaa, ask a question that PHP submits to this page.
I want to submit the following code to this page, but it is incorrect. how can I write it?

Echo 'aaaa = ';
If (isset ($ _ POST ['add'])
{
Echo "bbbb ";
}
?>





------ Solution --------------------


Echo 'aaaa = ';
If ($ act = 'AC ')
{
$ Status =! Empty ($ _ POST ['status'])? Trim ($ _ POST ['status']): '';
...
}
?>
------ Solution --------------------
Discussion
I want to submit the following code to this page, but it is incorrect. how can I write it?

Echo 'aaaa = ';
If (isset ($ _ POST ['add'])
{
Echo "bbbb ";
}
?>