I have installed APCu extension in PHP7
But I get this error
Call to undefined function apc_fetch()
5 Answers
Starting with PHP 7.0, APCu removed the option for full backwards compatibility with APC that existed with APCu in PHP 5.5 and 5.6.
You will need to add the APCu Backwards Compatiblity Module on top of apcu to make it work. (https://pecl.php.net/package/apcu_bc)
pecl install apcu_bc
Comments
You need to install apcu and apcu backward compatibility for PHP7
On Ubuntu 14.xx you first need to install php7.0 by using the repo:
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.0
Then
sudo apt-get install php7.0-apcu
sudo apt-get install php7.0-apcu-bc
Then restart apache
For ubuntu 16.xx. You can already install apcu
sudo apt-get install php-apcu
Then add the repo:
sudo add-apt-repository "deb http://ftp.de.debian.org/debian sid main"
sudo apt-get update
then
sudo apt-get install php-apcu-bc
3 Comments
Loenix
These packages seem to not exists in ubuntu 16 repos
Stéphan Champagne
You are right I will update the answer with the info for the package :)
akronymn
I know I'm late to the party but it's worth noting that you'll also need to restart apache after the Ubuntu 16 instructions as well.
Such an installation doesnt work for me - ubuntu doesnt have apcu-bc package.
apt-get install php7.0-apcu-bc
My installation
sudo apt-get install php-dev
sudo pecl install apcu_bc-beta
After that I changed /etc/php/7.0/mods-available/apcu-ini to
extension=apcu.so
extension=apc.so
Note, that apc.so must be AFTER apcu
2 Comments
Sonny
Is the
-beta part required for the install from pecl?
Andrew Zhilin
@Sonny sorry, I dont know
APC and APCu are different modules.
You have APCu installed, however, you are using APC functions.
Try apcu_fetch or install apc, if that is possible for PHP7.
Comments
In Centos using IUS repo, install apcu and apcu-bc packages for php7:
sudo yum install php71u-pecl-apcu php71u-pecl-apcu-bc
