Try using
<META HTTP-EQUIV="Refresh CONTENT="15;URL=<?=$url?>" >
On the header of the page where 15=wait time and $url is the name of your page (can be the same page) or the page where you want to redirect.
then use
$Mydata = fread(fopen($Myfile, 'r'), filesize($Myfile));
Chop $MyData as desired to print message
Or you could read part of the file.
Sorry not much time but I hope ite helps.