'OK', 'ERROR'=>'ERROR'];
ob_start();
print "
Book ID input
";
print "";
print "Errors
";
print "".errors()."
";
$output = ob_get_clean();
Template::render($output);
function errors(){
ob_start();
$a = file("../data/isbn-error.txt");
$r = array_reverse($a);
print "";
foreach ($r as $l){
print($l);
}
print "
";
return ob_get_clean();
}