html - PHP check loop? -

i trying detected if variable same string. if page refresh. if variables aren't same, page loads. need way keep checking after page has been loaded if refresh variable same.

here code have been testing been unsuccessful page keeps refreshing.

$refresh = file_get_contents('refresh.txt');  {       header("refresh:0"); } while ($refresh == "true");   // html webpage code after point  

if can fix or redo code appreciated

try think of way:

<?php $page = $_server['php_self']; $sec = 10; if ($number == $string){   header("refresh: $sec; url=$page");  } else {goto:end;}  end: ?> <script>       jquery code goes here page load </script>