fix php 7.1 warning

1 files changed, 1 insertions, 1 deletions

diff --git a/it.class b/it.class
index 95c91e5..3846fe5 100644
--- a/it.class
+++ b/it.class
@@ -170,7 +170,7 @@ static function error($p = array())
 	if ($p['okstate'])
 	{
 		list($okfn, $okstatus) = explode("=", "/tmp/alertdata/okstate_" . $p['okstate']);
-		$failcount = $okstatus ? 0 : @file_get_contents($okfn) + 1;
+		$failcount = $okstatus ? 0 : (int)@file_get_contents($okfn) + 1;
 		file_put_contents($okfn, "$failcount\n");
 		if ($failcount != $p['failcount'])
 			return;