I'm using Wordpress 3.9 on the latest UniserverZ of 11.1.6. Trying to install plugins sometimes locks up at "Unpacking". Google tells me this may be due to PHP.INI needing to be increased.
"You need to change the memory_limit in the php.ini for your server. Changing it at runtime has typically no effect (on shared hosting anyway), much less the WP_MEMORY_LIMIT constant."
On looking into my Uniform Server files I find three versions of PHP.INI. Which one should I use and do you think this is the correct answer?