Symfony / PHP7 APC -> APCu

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I have issue with PHP7 and APCu. After installation I got this error:

Fatal error: Call to undefined function Doctrine\Common\Cache\apc_fetch()

APCu is 100% enabled, I see it in the phpinfo(); And when I try apcu_fetch() it works.

How to use APCu in Symfony 2.8?

Deroo answered 30/12, 2015 at 21:29 Comment(5)

Opcache has been available, built into PHP since 5.5, might want to look into it. – Ceric 30/12, 2015 at 21:50

Yes, but APCu is better for Symfony. – Deroo 30/12, 2015 at 21:51

Do you get this error on command line or on the client which connects to fpm ? Anway just reminding, if you get this error on commandline, you may miss php.ini can be different by fpm and cli – Monstrosity 21/1, 2016 at 20:34

APC is very buggy especially in newer PHP versions. – Chukchi 21/1, 2016 at 20:34

In php.ini I have this extension=apcu.so apc.enabled = 1 And in phpinfo I see APCU like Enabled.. So it's OK. But in command line I have this error: Fatal error: Call to undefined function Doctrine\Common\Cache\apc_fetch() If I try apcu_fetch() all works fine – Deroo 21/1, 2016 at 20:36

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This answer is obsolet. The correct answer is the one from François Breton.

In PHP 7 you have to add an additional module to your PHP setup: apc.so This is a module that enables backward compability to apc for apcu. This is kind of confusing...

See http://php.net/manual/de/apcu.installation.php for more info.

If you are using packages from https://deb.sury.org/ (ondrej ppa), you can install it via apt-get install php-apcu-bc.

Dagenham answered 16/2, 2016 at 14:29 Comment(1)

Could you please expand your answer in how to add the module? – Isochor 4/4, 2017 at 13:21

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You can update Doctrine, at least its doctrine/cache dependency (>= 1.6) APCu now supported :-)

Ladon answered 9/6, 2016 at 19:11 Comment(1)

Confirmed. Just change all your configs where you have apc to apcu eg metadata_cache_driver: apcu – Anoa 26/6, 2016 at 18:11

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This answer is obsolet. The correct answer is the one from François Breton.

In PHP 7 you have to add an additional module to your PHP setup: apc.so This is a module that enables backward compability to apc for apcu. This is kind of confusing...

See http://php.net/manual/de/apcu.installation.php for more info.

If you are using packages from https://deb.sury.org/ (ondrej ppa), you can install it via apt-get install php-apcu-bc.

Dagenham answered 16/2, 2016 at 14:29 Comment(1)

Could you please expand your answer in how to add the module? – Isochor 4/4, 2017 at 13:21

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If you use ubuntu:

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php-apcu-bc

Annulus answered 13/7, 2017 at 2:33 Comment(1)

This answer contains the solution that worked for me. Be good if you fleshed it out a bit more. Thx. – Anisette 14/9, 2017 at 0:34

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On MacOS, using pecl is a one-command solution (after a brew install [email protected]) :

pecl install apcu

downloading apcu-5.1.17.tgz ...
[...]
Installing '/usr/local/Cellar/[email protected]/7.1.27/pecl/20160303/apcu.so'
install ok: channel://pecl.php.net/apcu-5.1.17
Extension apcu enabled in php.ini

Widmer answered 2/4, 2019 at 21:1 Comment(0)

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