forms - Can't access post in php -


here's code in short way. code can't access post , don't know why. 

if ($_post) { echo 'post girdim'; } ?> <html>    <head>     </head> <body>     <form action="" method="post">         <input type="submit">     </form> </body>

set input name like:

<input name="submit" type="submit" />

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