[[SOLVED] The Print() function help]

Hello i am writing a code to display a link with php becuase the link has to go to a page that is named with a variable but i cant get the variable to print! i have tried many things.

here it is

<?php
$m = "Grimslapdash";
if(isset($m)){
} else {
print "<A href=\"$m.php\">$m</a>";
}
?>

i want it to print the link only if the variable is set. and the link will be

<a href="$m.php">$m</a> or <a href="Grimslapdash.php">Grimslapdash</a>

 

all it does now is print

<a href=".php"></a>

the variable $m is not printing