How to enable the memcached PHP extension after installing with homebrew?

Question

I recently installed memcached with homebrew, I'm not entirely sure how to enable it on my PHP envirionment since I added extension=memcached.so in /etc/php.ini in Lion OS X.

Even I restarted apache too, nothing is still loaded.

If I call get_loaded_extensions(), I do not see memcached in the list, how can I enable it when installed from homebrew?

EDIT:

What I did in Terminal was:

$ brew install memcached

It installed just fine, now I went to /etc/php.ini and appended:

extension=memcached.so

Solution 1

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20090626/memcached.so'

That's the information PHP is giving you, stick to it.

It's either:

• The file you have specified does not exists. Check your file-system.
• The file you've specified can not be read by PHP, check the rights of the file.
• The file you've specified is incompatible with your PHP binary. Check if you have compiled the right sources and compilation went well.

Solution 2

Install Memcached:

# lists all memcached related packages
brew search memcached

# install memcached as well as memcached extension for PHP
brew install memcached
brew install php54-memcached

# start memcached daemon with 24MB on port 11211 (default)
memcached -d -m 24 -p 11211

Add to your php.ini file to add:

extension=memcached.so

Restart php or php5-fpm and your server. Verify:

php -i | grep memcached
# should show memcached version, etc.

Solution 3

Install:

brew install memcached
OR
sudo pecl install memcached

Add this line to /etc/php.ini:

extension = memcached.so
OR
extension="/usr/lib/php/extensions/no-debug-non-zts-20090626/memcached.so"

If you are having trouble finding where it lives do

mdfind memcached.so -name
=> /usr/lib/php/extensions/no-debug-non-zts-20090626/memcached.so

Make sure it is running as a daemon (-d):

/usr/local/bin/memcached -d

Restart apache:

sudo apachectl restart

Solution 4

You'll need to install libmemcached with homebrew, not just memcached. Do this:

brew install libmemcached

Then try recompiling your memcache PHP module. Should be good to go

Solution 5

First, install memcached library with:

sudo pecl install memcached

Then, add this line to /etc/php.ini:

extension = memcached.so

That's it.

View more solutions

Comments

[MacMac]

I don't know how to give you more information, check my edit.

[hakre]

Have you installed php with homebrew as well? And is the .so file inside the directory PHP expects it to be?

[MacMac]

No, I'm using the PHP that came with Lion OS X by default. There is no memcached.so in the directory.

[MacMac]

There is actually no memcached.so around my MacBook, I tried searching with the find command and didn't find it at all.

[hakre]

Then first install the memcache PHP extension (next to the server). Without the actual binary of the extension, it's obvious, that it does not work, isn't it?

[MacMac]

Hmm. I fixed the problem, I first installed libmemcached via homebrew then installed memcached with pecl.

[Brendon Muir]

This answers your question better. You think you've installed the php extension for memcached but have only installed memcached itself.

[yegor256]

brew install memcached-php gives Error: No available formula for memcached-php

[Evan]

what is the correct version of xcode needed for this? will it work with 3.2.6?

[Brian Noah]

Installed and got error about autoconf. Next person who reads this, install autoconf by using brew install autoconf

[JordanC]

Try: brew install php54-memcached (or php53 if you are on 5.3)

[geoidesic]

And how would you "recompile your memcache PHP module" then?

[msanford]

Tap: brew tap homebrew/dupes;brew tap josegonzalez/homebrew-php (see github.com/josegonzalez/homebrew-php ) then brew install php55-memcached (or whatever version you're using).

[Dave Kiss]

This was what I was missing: brew install php55-memcached

[Dave Kiss]

brew reinstall memcached

[henrijs]

It now seems as adding "extension=memcached.so" is not needed as php on startup says "Additional .ini files parsed => /usr/local/etc/php/5.4/conf.d/ext-memcached.ini" which has that line in it.

[phpguru]

In fact libmemcached was my issue as well. I had already installed it, so when I tried brew install libmemcached brew said Warning: libmemcached-1.0.18_1 already installed, it's just not linked. So I ran brew link libmemcached and then there was a permissions issue on /usr/local/include so I chown -R that folder to my user and then brew link ran fine, and then the extension worked, the error went away and my site loaded just fine.

[user269867]

what is autoconf?

[user269867]

The above installation works for CLI but with Apache it is not working. Any idea how to fix for apache I am trying to add additional ini in apache but not effective either. Any help is much appreciated.

[jmontross]

@user269867 - gnu.org/software/autoconf/manual/autoconf.html