Eth0 eth1 why is the internet disappearing?

Question

PHP

interfaces
auto lo
iface lo inet loopback
auto eth0
allow-hotplug eth0
iface eth0 inet static
address 188.21.52.49
netmask 255.255.255.0
gateway 188.21.52.254
dns-nameservers 8.8.8.8 8.8.4.4
auto eth1
allow-hotplug eth1
iface eth1 inet static
address 192.168 .1.1
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 8.8.8.8 8.8.4.4
eth0 looks to the Internet
eth1 to the local network when eth1 is turned on, the debian (raspberry)
Internet immediately disappears

Answer 1

Variable output error, replace <?php=with<?=

Answer 2

I think you need to remove gateway from eth1. Yes, and DNS'y there is not needed.

Answer 3

auto eth1
allow-hotplug eth1
iface eth1 inet static
address 192.168.1.1
netmask 255.255.255.0
Gateway and dns parameters, for local area network enter in DHCP, not here.