How to Install:
cd /usr/local/src
rm -rf APC-3.1.9.tgz
wget -c https://pecl.php.net/get/APC-3.1.9.tgz
tar xzvf APC-3.1.9.tgz
cd APC-3.1.9
phpize
./configure
make && make install
echo "extension=apc.so" > /usr/local/php/php.ini
cd /usr/local/src
rm -rf APC-3.1.9.tgz
wget -c https://pecl.php.net/get/APC-3.1.9.tgz
tar xzvf APC-3.1.9.tgz
cd APC-3.1.9
phpize
./configure
make && make install
echo "extension=apc.so" > /usr/local/php/php.ini