html - Get the Value from another PHP page -

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hello have below form in page viewsensordata.php 

...  $refresh = ($_post['refresh']);  $link_address="viewsensordata.php?view=".$view; ?> <form method="post" action="<?php echo $link_address;?>"> <select id="refresh" name="refresh">     <option value="-">select seconds</option>     <option value="1">1 second</option>     <option value="2">2 seconds</option>     <option value="3">3 seconds</option>     <option value="4">4 seconds</option>     <option value="5">5 seconds</option>     <option value="10">10 seconds</option>     <option value="15">15 seconds</option>     <option value="30">30 seconds</option>     <option value="60">60 seconds</option> </select> <input type="submit" value="refresh" name="refresh_rate"/> </form> <meta http-equiv="refresh" content="<?php echo $refresh;?>;url=refreshsensordata.php"> <br />

and want value of $refresh page named viewsensordata2.php

in viewsensordata2.php have $refresh = ($_get['refresh']); in order other page doesnt work. how can fix that?

<?php $link_address="viewsensordata.php?view=".$view; ?> <form method="post" action="<?php echo $link_address;?>"> <select id="refresh" name="refresh">     <option value="-">select seconds</option>     <option value="1">1 second</option>     <option value="2">2 seconds</option>     <option value="3">3 seconds</option>     <option value="4">4 seconds</option>     <option value="5">5 seconds</option>     <option value="10">10 seconds</option>     <option value="15">15 seconds</option>     <option value="30">30 seconds</option>     <option value="60">60 seconds</option> </select> <input type="submit" value="refresh" name="refresh_rate"/> </form>

then in second page, can refresh this:

<?php if(isset($_post) && isset($_post['refresh'])){    $sec = $_post['refresh']; } elseif(isset($_get) && isset($_get['seconds'])){    $sec = $_get['seconds']; } else{    $sec = 10; // defualt seconds, if not set form or url } ?>  <meta http-equiv="refresh" content="<?php echo $sec ;?> url=<?php echo $_server['php_self']; ?>?seconds=$sec">

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