added data.php

1 files changed, 17 insertions, 0 deletions

diff --git a/ipmatch.php b/ipmatch.php
new file mode 100644
index 0000000..058f878
--- /dev/null
+++ b/ipmatch.php
@@ -0,0 +1,17 @@
+<?php
+function match_network ($nets, $ip) {
+	foreach ($nets as $net) {
+		$ip_arr	 = explode('/', $net);
+		if (!$ip_arr[1])
+			$ip_arr[1] = '32';
+
+		$net_long = ip2long($ip_arr[0]);
+		$x = ip2long($ip_arr[1]);
+		$mask = long2ip($x) == $ip_arr[1] ? $x : 0xffffffff << (32 - $ip_arr[1]);
+		$ip_long = ip2long($ip);
+
+		if (($ip_long & $mask) == ($net_long & $mask)) return true;
+	}
+	return false;
+}
+?>