12 Feb 11 Use APC(Alternative PHP Cache) for WordPress on VPS

W3 Total Cache support many page cache methods. For VPS or Dedicated server, it’s better to use Opcode than disk.  The Alternative PHP Cache will be built into PHP6, so it’s a good to try it now.

“APC is a free, open, and robust framework for caching and optimizing PHP intermediate code.”

On CentOS, you can install it though:

# pecl install apc

Or manually install it

# wget http://pecl.php.net/get/APC-3.1.6.tgz
# tar -xvzf APC-*.tgz
# cd APC-*
# phpize
# ./configure
# make
# make install

I’ve see the following error when to install APC through pecl. To solve the problem, just install pcre-devel package first

# yum install pcre-devel

//Error message

/root/tmp/pear/APC/apc.c:369: error: expected specifier-qualifier-list before 'pcre' /root/tmp/pear/APC/apc.c: In function 'apc_regex_compile_array': /root/tmp/pear/APC/apc.c:430: error: 'apc_regex' has no member named 'preg' /root/tmp/pear/APC/apc.c:430: error: 'apc_regex' has no member named 'preg' /root/tmp/pear/APC/apc.c:431: error: 'apc_regex' has no member named 'nreg' /root/tmp/pear/APC/apc.c:431: error: 'apc_regex' has no member named 'nreg' /root/tmp/pear/APC/apc.c: In function 'apc_regex_match_array':