inc: fix usage due to PHP's is_array() warning level raise

src/etc/inc/authgui.inc

 <?php
-/* $Id$ */
+
 /*
 	Copyright (C) 2007, 2008 Scott Ullrich <sullrich@gmail.com>
-	All rights reserved.
-
         Copyright (C) 2005-2006 Bill Marquette <bill.marquette@gmail.com>
-        All rights reserved.
-
         Copyright (C) 2006 Paul Taylor <paultaylor@winn-dixie.com>.
-        All rights reserved.
-
         Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
         All rights reserved.
 
@@ -33,9 +27,8 @@
         CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
         ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
         POSSIBILITY OF SUCH DAMAGE.
-
-		pfSense_MODULE: authgui
 */
+
 include_once("auth.inc");
 include_once("priv.inc");
 
@@ -199,7 +192,7 @@ function display_login_form() {
 			}
 		}
 	}
-	if (is_array($config['openvpn']['openvpn-server'])) {
+	if (isset($config['openvpn']['openvpn-server'])) {
 		foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
 			if (is_ipaddrv4($http_host) && !empty($ovpns['tunnel_network']) && ip_in_subnet($http_host, $ovpns['tunnel_network'])) {
 				$local_ip = true;

src/etc/inc/filter.inc

@@ -960,7 +960,7 @@ function filter_generate_optcfg_array()
 		$FilterIflist['enc0'] = $oic;
 	}
 	/* add openvpn interfaces */
-	if($config['openvpn']['openvpn-server'] || $config['openvpn']['openvpn-client']) {
+	if (isset($config['openvpn']['openvpn-server']) || isset($config['openvpn']['openvpn-client'])) {
 		$oic = array();
 		$oic['if'] = "openvpn";
 		$oic['descr'] = 'OpenVPN';

src/etc/inc/interfaces.inc

@@ -5270,7 +5270,7 @@ function interfaces_staticarp_configure($if)
 	} else {
 		mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " -staticarp " );
 		mwexec("/usr/sbin/arp -d -i " . escapeshellarg($ifcfg['if']) . " -a > /dev/null 2>&1 ");
-		if (is_array($config['dhcpd'][$if]) && is_array($config['dhcpd'][$if]['staticmap'])) {
+		if (isset($config['dhcpd'][$if]['staticmap'])) {
 			foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
 				if (isset($arpent['arp_table_static_entry'])) {
 					mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));

src/etc/inc/vpn.inc

 <?php
 
 /*
-	vpn.inc
 	Copyright (C) 2004 Scott Ullrich
 	Copyright (C) 2008 Shrew Soft Inc
-	Copyright (C) 2008 Ermal Lu�i
-	All rights reserved.
-
-	originally part of m0n0wall (http://m0n0.ch/wall)
+	Copyright (C) 2008 Ermal Luçi
 	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
 	All rights reserved.
 
@@ -33,13 +29,6 @@
 	POSSIBILITY OF SUCH DAMAGE.
 */
 
-/*
-	pfSense_BUILDER_BINARIES:	/sbin/ifconfig
-	pfSense_BUILDER_BINARIES:	/usr/local/sbin/ipsec	/usr/local/libexec/ipsec/charon /usr/local/libexec/ipsec/starter
-	pfSense_BUILDER_BINARIES:	/usr/local/sbin/filterdns	/usr/local/sbin/mpd4
-	pfSense_MODULE:	vpn
-*/
-
 require_once("ipsec.inc");
 
 function vpn_ipsec_configure_loglevels($forconfig = false)
@@ -106,9 +95,9 @@ function vpn_ipsec_configure($ipchg = false)
 
 	$syscfg = $config['system'];
 	$ipseccfg = $config['ipsec'];
-	$a_phase1 = $config['ipsec']['phase1'];
-	$a_phase2 = $config['ipsec']['phase2'];
-	$a_client = $config['ipsec']['client'];
+	$a_phase1 = isset($config['ipsec']['phase1']) ? $config['ipsec']['phase1'] : array();
+	$a_phase2 = isset($config['ipsec']['phase2']) ? $config['ipsec']['phase2'] : array();
+	$a_client = isset($config['ipsec']['client']) ? $config['ipsec']['client'] : array();
 
 	if (!isset($ipseccfg['enable'])) {
 		/* try to stop charon */