Memo about zip compression with PHP7.1

Hello.
I'm Mandai, in charge of Wild on the development team.

I was asked to write code to perform zip compression using PHP for content that is being developed in a PHP7.1 environment.
I wanted to release it after merging and confirming it, but it took a little time, so I would like to share the solution.

It started with an error about missing ZipArchive.

When I merged and ran it, I got the following error:

Error - Class 'ZipArchive' not found in APPPATH/classes/logic/monitoring.php on line 721

 

Of course, this happened because I didn't install the module, so I'll try to install it.

The currently installed PHP-related modules are as follows.

$ yum list installed | grep php php.x86_64 7.1.22-1.el7.remi @remi-php71 php-cli.x86_64 7.1.22-1.el7.remi @remi-php71 php-common.x86_64 7.1.22- 1.el7.remi @remi-php71 php-devel.x86_64 7.1.22-1.el7.remi @remi-php71 php-fpm.x86_64 7.1.22-1.el7.remi @remi-php71 php-gd.x86_64 7.1.22-1.el7.remi @remi-php71 php-json.x86_64 7.1.22-1.el7.remi @remi-php71 php-mbstring.x86_64 7.1.22-1.el7.remi @remi-php71 php -mcrypt.x86_64 7.1.22-1.el7.remi @remi-php71 php-mysqlnd.x86_64 7.1.22-1.el7.remi @remi-php71 php-pdo.x86_64 7.1.22-1.el7.remi @ remi-php71 php-pecl-imagick.x86_64 3.4.3-8.el7.remi.7.1 @remi-php71 php-xml.x86_64 7.1.22-1.el7.remi @remi-php71

 

Certainly not.
Let's check the modules that PHP is loading.

$ php -m [PHP Modules] bz2 calendar Core ctype curl date dom exif fileinfo filter ftp gd gettext hash iconv imagick json libxml mbstring mcrypt mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar readline Reflection session SimpleXML sockets SPL sqlite3 standard tokenizer wddx xml xmlreader xmlwriter xsl # It should be around here zlib

 

Not really.
So, let's quickly install it using yum.

 

Try installing php-pecl-zip using yum

Since PHP was prepared using yum, we will install it using yum again this time.

$ yum install –enablerepo=remi-php71 php-pecl-zip Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp.jaist.ac.jp * epel: mirrors.kernel.org * extras: ftp.jaist.ac .jp * remi-safe: ftp.riken.jp * updates: ftp.jaist.ac.jp Package matching php-common-5.4.16-45.el7.x86_64 already installed. Checking for update.

 

You got angry in a strange way.
The version of PHP I'm using is 7.1, so it's strange that I can't install it because of php-common-5.4.

Since it is a PECL module, let's try compiling it directly.

 

Try compiling the PECL module

The source was downloaded from PECL::Package::zip

$ phpize Configuring for: PHP Api Version: 20160303 Zend Module Api No: 20160303 Zend Extension Api No: 320160303 $ ./configure checking for grep that handles long lines and -e... /bin/grep checking for egrep... / bin/grep -E checking for a sed that does not truncate output... /bin/sed checking for cc... cc checking whether the C compiler works... yes checking for C compiler default output file name... a .out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether cc accepts -g. .. yes checking for cc option to accept ISO C89... none needed checking how to run the C preprocessor... cc -E checking for icc... no checking for suncc... no checking whether cc understands -c and -o together... yes checking for system library directory... lib checking if compiler supports -R... no checking if compiler supports -Wl,-rpath,... yes checking build system type... x86_64-unknown -linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu checking for PHP prefix... /usr checking for PHP includes... -I /usr/include/php -I/usr/include/php/main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/php/ext -I/usr /include/php/ext/date/lib checking for PHP extension directory... /usr/lib64/php/modules checking for PHP installed headers prefix... /usr/include/php checking if debug is enabled... no checking if zts is enabled... no checking for re2c... no configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers. checking for gawk... gawk checking for zip archive read/ writesupport... yes, shared checking libzip... yes checking PHP version... PHP 7.0 - 7.2 checking for pkg-config... /bin/pkg-config checking for libzip... configure: error: system libzip must be upgraded to version >= 0.11

 

I got angry because the libzip version was low.
There is also a way to increase the version of libzip, but I don't want it to affect various things, so I did a little research.

There's not much information.
There are quite a few articles about installing PHP, but when it comes to php-pecl-zip, the number of articles suddenly decreases. Even if the scope is expanded to include English, this may still be a rare case.

 

Isn't it yum after all? suspicion that

Let's change our thinking a bit and go back to the basics and look at the results of yum.
When I installed it with yum, the installation stopped due to php-commom, so wouldn't it be possible to bypass this? I thought.

$ yum install --enablerepo=remi-php71 php-pecl-zip --exclude=php-common Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp.jaist.ac.jp * epel: mirrors.kernel.org * extras: ftp.jaist.ac.jp * remi-php71: ftp.riken.jp * remi-safe: ftp.riken.jp * updates: ftp.jaist.ac.jp Resolving Dependencies --> Running transaction check -- -> Package php-pecl-zip.x86_64 0:1.15.3-1.el7.remi.7.1 will be installed --> Processing Dependency: libzip5(x86-64) >= 1.5.1 for package: php-pecl- zip-1.15.3-1.el7.remi.7.1.x86_64 --> Processing Dependency: libzip.so.5()(64bit) for package: php-pecl-zip-1.15.3-1.el7.remi. 7.1.x86_64 --> Running transaction check ---> Package libzip5.x86_64 0:1.5.1-1.el7.remi will be installed --> Finished Dependency Resolution Dependencies Resolved =========== ================================================== ================================================== ==== Package Arch Version Repository Size ========================================= ================================================== ======================== Installing: php-pecl-zip x86_64 1.15.3-1.el7.remi.7.1 remi-php71 51 k Installing for dependencies: libzip5 x86_64 1.5.1-1.el7.remi remi-safe 55 k Transaction Summary ============================== ================================================== ==================================== Install 1 Package (+1 Dependent package) Total download size: 107 k Installed size: 280 k Is this ok [y/d/N]: y Downloading packages: (1/2): php-pecl-zip-1.15.3-1.el7.remi.7.1.x86_64.rpm | 51 kB 00:00:00 (2/2): libzip5-1.5.1-1.el7.remi.x86_64.rpm | 55 kB 00:00:00 ---------------- -------------------------------------------------- ------------------------------------------------- Total 214 kB/s | 107 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : libzip5-1.5.1-1.el7.remi.x86_64 1/2 Installing : php-pecl-zip-1.15 .3-1.el7.remi.7.1.x86_64 2/2 Verifying : libzip5-1.5.1-1.el7.remi.x86_64 1/2 Verifying : php-pecl-zip-1.15.3-1.el7.remi .7.1.x86_64 2/2 Installed: php-pecl-zip.x86_64 0:1.15.3-1.el7.remi.7.1 Dependency Installed: libzip5.x86_64 0:1.5.1-1.el7.remi Complete!

 

It seems that a new libzip was installed due to dependency resolution, but php-pecl-zip was successfully installed!
It has a different name, libzip5, so there should be no problem!

 

summary

On CentOS, the PHP registered in the standard yum repository is still 5 series, so I would like to do something about this, but by excluding php-common with the --exclude option, unnecessary dependency resolution can be avoided. I was able to install it without any problems.

Yum is quite good, so it's a case that you don't see very often.
When performing zip compression with PHP, you may want to be careful about the PHP version.

That's it.