Dear all,
I've installed PHP 8.2 on me Raspbian OS (PHP 8.x required by some libraries). I need to install the PHP imagemagick extension to convert images (SVG to PNG). However, I can't get it running.
Firstly, I installed imagemagick (don't know wheather that's necessary, but just to be on the safe side):
$ sudo apt install imagemagick
That was successful. There are no other packages avaiable:
$ sudo apt install imagemagick -a
imagemagick/oldstable,now 8:6.9.10.23+dfsg-2.1+deb10u1 armhf [installiert]
Secondly, I installed Imagick:
$ sudo apt install php-imagick
That was successful as well. There are no other packages avaiable:
$ sudo apt list php-imagick -a
php-imagick/oldstable,now 3.4.3-4.1 armhf [installiert]
I've added the following entry in my php.ini:
[Imagick]
extension=imagick.so
Finally, I restarted apache:
$ sudo systemctl restart apache2
During troubleshooting, I even restarted php:
$ sudo service php8.2-fpm reload
Imagick doesn't show up, neither when I try php -r 'phpinfo();' | grep imagick nor php -m | grep imagick.
Saying that, of course $im = new \Imagick(); results in a
Fatal error: Uncaught Error: Class "Imagick" not found.
I've studied web pages (including php error: Class 'Imagick' not found) and manuals for more than two hours now without any success. Any help/hint is highly appreciated!
Maybe one hint is that imagick.so was installed in the directory /usr/lib/php/20180731, while the current php extensions directory (according to php.ini) is /usr/lib/php/20220829. Copying the file to 20220829 (and restarting the services) didn't help.
Another hint might be that /etc/php/7.3/cli/conf.d contains a (link file) 20-imagick.ini (pointing to /etc/php/7.3/mods-available/imagick.ini), while /etc/php/8.2/cli/conf.d doesn't contain such a link, and /etc/php/8.2/mods-available doesn't contain an imagick.ini file. Same is applicable for /etc/php/x.y/apache2/conf.d. That seems suspicious, so I copied the following files
/etc/php/7.3/mods-available/imagick.ini -> /etc/php/8.2/mods-available/imagick.ini [content: extension=imagick.so]
/etc/php/7.3/cli/conf.d/20-imagick.ini -> /etc/php/8.2/cli/conf.d/20-imagick.ini
/etc/php/7.3/apache2/conf.d/20-imagick.ini -> /etc/php/8.2/apache2/conf.d/20-imagick.ini
/etc/php/7.3/fpm/conf.d/20-imagick.ini -> /etc/php/8.2/fpm/conf.d/20-imagick.ini
/usr/lib/php/20180731/imagick.so -> /usr/lib/php/20220829/imagick.so
After $ sudo systemctl restart apache2 when I run $ php -m | grep imagick I now get
PHP Warning: PHP Startup: Unable to load dynamic library 'imagick.so' (tried: /usr/lib/php/20220829/imagick.so (/usr/lib/php/20220829/imagick.so: undefined symbol: add_next_index_zval), /usr/lib/php/20220829/imagick.so.so (/usr/lib/php/20220829/imagick.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Maybe for some reason apt install and/or php-imagick think that my current php version is 7.3, so it updated the wrong files and took the wrong shared library (imagick.so), while it is 8.2 (7.3 is still installed, but inactive and 8.2 is active)?
Found this link here, that at least matches the error message: The propcedure entry point add_index_zval could not be located in the dynamic link library xampp/php/ext/php_imagic.dll
Possible solution: I have to get Imagick version>=3.5.0, according to the change log https://pecl.php.net/package-changelog.php?package=imagick, in order to have PHP 8.x supported (hopefully 8.2).
The main problem was that I had installed PHP 8.2 from an additional repository, as PHP 8.x is not yet supported by the Raspberr Pi Foundation, but I needed PHP 8.x for some extensions. The repository is fine, but I hadn't added the some certificates, so apt couldn't load all required files from this repository.
And you get lots of headache, when you can't load required files from a repository.
Here is what I did in order to solve (or, to be more specific, to avoid) the problem.
$ sudo wget /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
$ echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/php.list
$ sudo apt update
$ sudo apt-get -y install lsb-release ca-certificates curl
$ sudo curl -sSLo /usr/share/keyrings/deb.sury.org-php.gpg https://packages.sury.org/php/apt.gpg
$ sudo sh -c 'echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'
$ sudo apt-get update
Otherwise, the required cerficicates are not installed, and apt doesn't download all files from the repository (although it downloaded some - I have no idea why this is the case).
phpize to install Imagick later. phpize is included in the package pho-dev. When I tried this before solving the certificate issue (see above), I failed to do so due to package requiremens restrictions. Make sure to have the repostories properly connected (see above).The error message was similar to this one (I had to translate it and hope I got it right):
The following packages have unmet dependencies:
libpcre2-dev : Depends: libpcre2-8-0 (= 10.32-5) but 10.34-7+0~20191219.5+debian9 is to be installed
As soon the certificate issue was solved, the following command installed phpsize für PHP 8.2:
$ sudo apt-get install php-dev
imagick with apt, I installed it by using PECL, as recommended in the PHP documentation.
First, I had to download go-pear.phar.
Second, I installed it$ wget http://pear.php.net/go-pear.phar
I moved go-pear.phar to a directory ~/Downloads/pear/.
$ sudo php ~/Downloads/pear/go-pear.phar
Below is a suggested file layout for your new PEAR installation. To
change individual locations, type the number in front of the
directory. Type 'all' to change all of them or simply press Enter to
accept these locations.
1. Installation base ($prefix) : /usr
2. Temporary directory for processing : /tmp/pear/install
3. Temporary directory for downloads : /tmp/pear/install
4. Binaries directory : /usr/bin
5. PHP code directory ($php_dir) : /usr/share/php
6. Documentation directory : /usr/docs
7. Data directory : /usr/data
8. User-modifiable configuration files directory : /usr/cfg
9. Public Web Files directory : /usr/www
10. System manual pages directory : /usr/man
11. Tests directory : /usr/tests
12. Name of configuration file : /etc/pear.conf
1-12, 'all' or Enter to continue:
It is important to run this with sudo, otherwise user-specific directories are suggested.
I pressed Enter to continue.
$ sudo apt-get install imagemagick
$ sudo apt-get install libmagickwand-dev libmagickcore-dev
$ sudo pecl install imagick
During this installation, phpize is required to compile imagick. phpize had the wrong path for sed configured (see the first lines in the file phpize).
To be on the save side, I copied sed as (hard) link
$ sudo ln /bin/sed /usr/bin/sed
If you wish to disconnect the repository sury.org/php, you have to execute this commands. I'm not recommending this, as the possible updates or changes of the software installed depends on this repository.
sudo rm -rf /etc/apt/trusted.gpg.d/php.gpg
sudo rm -rf /etc/apt/sources.list.d/php.list