php - Set new values on the url -


i have url showing 2 values posted using method in php. can values url using example -

suppose url http://example.com/?name=hannes

my code

 <?php     echo 'hello ' . htmlspecialchars($_get["name"]) . '!';     ?>

and output hello hannes!

my question is- how can set values url on button click method post eg.

<form method="post"> if(isset($_post['$btn'){   htmlspecialchars($_get["name"])="lucky";   /*if there this*/  } </form>

thank you.

try - 

if(isset($_post['$btn'){      header('location:yourpage.php?name='.$yourvalue);     exit;     }

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