Install PHP 7 on CentOS 7


After I showed last week what problems you can deal with when switching from PHP 5.6 to PHP 7, I would like to show you how to switch to PHP 7 at all. Since I am now migrating to CentOS with all servers, it will be the first time that it is not a Debian example. The good thing about CentOS is that it is a fairly stable distribution – every major release is supported for 10 years. The bad thing about CentOS is that many packages are in a fairly old version, which is only provided with bug and security fixes. In my web server installations, I would rather rather operate new versions to get new features.

When you install a newer version, you have several options: either compiling PHP 7 yourself or using a third repository that contains pre-compiled packages for PHP 7. In this case I have decided for the second. With ius.io there is a repository for CentOS 7, which contains the most important packages and should be maintained for a long time due to the support of the host rackspace .

To use the IUS repository, you must first install your RPM package, which takes care of configuring the repository in the system:

yum install wget
yum install epel-release
wget https://centos7.iuscommunity.org/ius-release.rpm
sudo rpm -i ./ius-release.rpm
rm ./ius-release.rpm

Result:

[root@tutorialspots ~]# yum install wget
Loaded plugins: fastestmirror
base                                                     | 3.6 kB     00:00
extras                                                   | 3.4 kB     00:00
updates                                                  | 3.4 kB     00:00
(1/4): base/7/x86_64/group_gz                              | 155 kB   00:01
(2/4): extras/7/x86_64/primary_db                          | 191 kB   00:01
(3/4): base/7/x86_64/primary_db                            | 5.6 MB   00:01
(4/4): updates/7/x86_64/primary_db                         | 7.8 MB   00:01
Determining fastest mirrors
 * base: mirrors.linode.com
 * extras: mirrors.linode.com
 * updates: mirrors.linode.com
Resolving Dependencies
--> Running transaction check
---> Package wget.x86_64 0:1.14-13.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package         Arch              Version                Repository       Size
================================================================================
Installing:
 wget            x86_64            1.14-13.el7            base            546 k

Transaction Summary
================================================================================
Install  1 Package

Total download size: 546 k
Installed size: 2.0 M
Is this ok [y/d/N]: y
Downloading packages:
wget-1.14-13.el7.x86_64.rpm                                | 546 kB   00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : wget-1.14-13.el7.x86_64                                      1/1
  Verifying  : wget-1.14-13.el7.x86_64                                      1/1

Installed:
  wget.x86_64 0:1.14-13.el7

Complete!
[root@tutorialspots ~]# yum install epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.linode.com
 * extras: mirrors.linode.com
 * updates: mirrors.linode.com
Resolving Dependencies
--> Running transaction check
---> Package epel-release.noarch 0:7-9 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package                Arch             Version         Repository        Size
================================================================================
Installing:
 epel-release           noarch           7-9             extras            14 k

Transaction Summary
================================================================================
Install  1 Package

Total download size: 14 k
Installed size: 24 k
Is this ok [y/d/N]: y
Downloading packages:
epel-release-7-9.noarch.rpm                                |  14 kB   00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : epel-release-7-9.noarch                                      1/1
  Verifying  : epel-release-7-9.noarch                                      1/1

Installed:
  epel-release.noarch 0:7-9

Complete!
[root@tutorialspots ~]# wget https://centos7.iuscommunity.org/ius-release.rpm
--2017-07-24 10:24:24--  https://centos7.iuscommunity.org/ius-release.rpm
Resolving centos7.iuscommunity.org (centos7.iuscommunity.org)... 2001:4802:7801:
102:be76:4eff:fe21:14aa, 162.242.221.48
Connecting to centos7.iuscommunity.org (centos7.iuscommunity.org)|2001:4802:7801
:102:be76:4eff:fe21:14aa|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://dl.iuscommunity.org/pub/ius/stable/CentOS/7/x86_64/ius-release
-1.0-15.ius.centos7.noarch.rpm [following]
--2017-07-24 10:24:26--  https://dl.iuscommunity.org/pub/ius/stable/CentOS/7/x86
_64/ius-release-1.0-15.ius.centos7.noarch.rpm
Resolving dl.iuscommunity.org (dl.iuscommunity.org)... 2001:4802:7901:0:4ccc:ff1
1:0:a, 146.20.25.47
Connecting to dl.iuscommunity.org (dl.iuscommunity.org)|2001:4802:7901:0:4ccc:ff
11:0:a|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8340 (8.1K) [application/x-redhat-package-manager]
Saving to: `ius-release.rpm'

100%[======================================>] 8,340       --.-K/s   in 0s

2017-07-24 10:24:27 (71.5 MB/s) - `ius-release.rpm' saved [8340/8340]

In my case I install besides PHP synonymous always equal MariaDB and NGINX. The IUS repository also contains a more recent version of MariaDB. In order to install these, however, you must first remove the existing “mariadb-libs”. In the process, Postfix is ‚Äč‚Äčalso uninstalled – we will simply reinstall it afterwards:

yum remove mariadb-libs

Result:

[root@tutorialspots ~]# yum remove mariadb-libs
Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.52-1.el7 will be erased
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-
2.10.1-6.el7.x86_64
--> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for pa
ckage: 2:postfix-2.10.1-6.el7.x86_64
--> Running transaction check
---> Package postfix.x86_64 2:2.10.1-6.el7 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package             Arch          Version               Repository        Size
================================================================================
Removing:
 mariadb-libs        x86_64        1:5.5.52-1.el7        @anaconda        4.4 M
Removing for dependencies:
 postfix             x86_64        2:2.10.1-6.el7        @anaconda         12 M

Transaction Summary
================================================================================
Remove  1 Package (+1 Dependent package)

Installed size: 17 M
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Erasing    : 2:postfix-2.10.1-6.el7.x86_64                                1/2
  Erasing    : 1:mariadb-libs-5.5.52-1.el7.x86_64                           2/2
  Verifying  : 2:postfix-2.10.1-6.el7.x86_64                                1/2
  Verifying  : 1:mariadb-libs-5.5.52-1.el7.x86_64                           2/2

Removed:
  mariadb-libs.x86_64 1:5.5.52-1.el7

Dependency Removed:
  postfix.x86_64 2:2.10.1-6.el7

Complete!

Now we can install the desired software via the software administration – packages that are installed via IUS always contain the suffix “u” to make them easier to recognize and avoid collisions with standard packages:

yum install mariadb101u-server nginx php71u-cli php71u-fpm php71u-gd php71u-imap php71u-intl php71u-json php71u-ldap php71u-mbstring php71u-mcrypt php71u-mysqlnd php71u-pdo php71u-pear php71u-pgsql php71u-process php71u-pspell php71u-recode php71u-soap php71u-xml php71u-xmlrpc postfix

Result:

...
Installed:
  mariadb101u-server.x86_64 1:10.1.24-1.ius.centos7
  nginx.x86_64 1:1.10.2-1.el7
  php71u-cli.x86_64 0:7.1.7-1.ius.centos7
  php71u-fpm.x86_64 0:7.1.7-1.ius.centos7
  php71u-gd.x86_64 0:7.1.7-1.ius.centos7
  php71u-imap.x86_64 0:7.1.7-1.ius.centos7
  php71u-intl.x86_64 0:7.1.7-1.ius.centos7
  php71u-json.x86_64 0:7.1.7-1.ius.centos7
  php71u-ldap.x86_64 0:7.1.7-1.ius.centos7
  php71u-mbstring.x86_64 0:7.1.7-1.ius.centos7
  php71u-mcrypt.x86_64 0:7.1.7-1.ius.centos7
  php71u-mysqlnd.x86_64 0:7.1.7-1.ius.centos7
  php71u-pdo.x86_64 0:7.1.7-1.ius.centos7
  php71u-pgsql.x86_64 0:7.1.7-1.ius.centos7
  php71u-process.x86_64 0:7.1.7-1.ius.centos7
  php71u-pspell.x86_64 0:7.1.7-1.ius.centos7
  php71u-recode.x86_64 0:7.1.7-1.ius.centos7
  php71u-soap.x86_64 0:7.1.7-1.ius.centos7
  php71u-xml.x86_64 0:7.1.7-1.ius.centos7
  php71u-xmlrpc.x86_64 0:7.1.7-1.ius.centos7
  postfix.x86_64 2:2.10.1-6.el7

Dependency Installed:
  aspell.x86_64 12:0.60.6.1-9.el7
  fontconfig.x86_64 0:2.10.95-10.el7
  fontpackages-filesystem.noarch 0:1.44-8.el7
  gd.x86_64 0:2.0.35-26.el7
  gperftools-libs.x86_64 0:2.4-8.el7
  libX11.x86_64 0:1.6.3-3.el7
  libX11-common.noarch 0:1.6.3-3.el7
  libXau.x86_64 0:1.0.8-2.1.el7
  libXpm.x86_64 0:3.5.11-3.el7
  libaio.x86_64 0:0.3.109-13.el7
  libc-client.x86_64 0:2007f-4.el7.1
  libicu.x86_64 0:50.1.2-15.el7
  libjpeg-turbo.x86_64 0:1.2.90-5.el7
  libmcrypt.x86_64 0:2.5.8-13.el7
  libpng.x86_64 2:1.5.13-7.el7_2
  libtool-ltdl.x86_64 0:2.4.2-22.el7_3
  libunwind.x86_64 2:1.1-5.el7_2.2
  libxcb.x86_64 0:1.11-4.el7
  libxslt.x86_64 0:1.1.28-5.el7
  mariadb101u.x86_64 1:10.1.24-1.ius.centos7
  mariadb101u-common.x86_64 1:10.1.24-1.ius.centos7
  mariadb101u-config.x86_64 1:10.1.24-1.ius.centos7
  mariadb101u-errmsg.x86_64 1:10.1.24-1.ius.centos7
  mariadb101u-libs.x86_64 1:10.1.24-1.ius.centos7
  nginx-all-modules.noarch 1:1.10.2-1.el7
  nginx-filesystem.noarch 1:1.10.2-1.el7
  nginx-mod-http-geoip.x86_64 1:1.10.2-1.el7
  nginx-mod-http-image-filter.x86_64 1:1.10.2-1.el7
  nginx-mod-http-perl.x86_64 1:1.10.2-1.el7
  nginx-mod-http-xslt-filter.x86_64 1:1.10.2-1.el7
  nginx-mod-mail.x86_64 1:1.10.2-1.el7
  nginx-mod-stream.x86_64 1:1.10.2-1.el7
  php71u-common.x86_64 0:7.1.7-1.ius.centos7
  postgresql-libs.x86_64 0:9.2.18-1.el7
  recode.x86_64 0:3.6-38.el7
  rsync31u.x86_64 0:3.1.2-2.ius.centos7

Complete!

Basically one is now finished at this point and has its CentOS 7 equipped with PHP 7. In my case, however, there were a few more things to do, as I needed SSH support in my PHP. Since there is still no ready-made package for IUS (probably because the SSH support for PHP 7 is not yet stable ), I had to compile the extension myself.

To do this, we have to install additional, required packages:

yum install autoconf automake make openssl-devel php71u-devel unzip zip

Result:

...
Installed:
  autoconf.noarch 0:2.69-11.el7
  automake.noarch 0:1.13.4-3.el7
  openssl-devel.x86_64 1:1.0.1e-60.el7_3.1
  php71u-devel.x86_64 0:7.1.7-1.ius.centos7
  unzip.x86_64 0:6.0-16.el7
  zip.x86_64 0:3.0-11.el7

Dependency Installed:
  keyutils-libs-devel.x86_64 0:1.5.8-3.el7
  krb5-devel.x86_64 0:1.14.1-27.el7_3
  libcom_err-devel.x86_64 0:1.42.9-9.el7
  libkadm5.x86_64 0:1.14.1-27.el7_3
  libselinux-devel.x86_64 0:2.5-6.el7
  libsepol-devel.x86_64 0:2.5-6.el7
  libverto-devel.x86_64 0:0.2.5-4.el7
  m4.x86_64 0:1.4.16-10.el7
  pcre-devel.x86_64 0:8.32-15.el7_2.1
  perl-Data-Dumper.x86_64 0:2.145-3.el7
  perl-Test-Harness.noarch 0:3.28-3.el7
  perl-Thread-Queue.noarch 0:3.02-2.el7
  zlib-devel.x86_64 0:1.2.7-17.el7

Dependency Updated:
  krb5-libs.x86_64 0:1.14.1-27.el7_3        openssl.x86_64 1:1.0.1e-60.el7_3.1
  openssl-libs.x86_64 1:1.0.1e-60.el7_3.1

Complete!

Install gcc if it doesn’t exist:

yum install gcc

Result:

...
Installed:
  gcc.x86_64 0:4.8.5-11.el7

Dependency Installed:
  cpp.x86_64 0:4.8.5-11.el7
  glibc-devel.x86_64 0:2.17-157.el7_3.5
  glibc-headers.x86_64 0:2.17-157.el7_3.5
  kernel-headers.x86_64 0:3.10.0-514.26.2.el7
  libmpc.x86_64 0:1.0.1-3.el7
  mpfr.x86_64 0:3.1.1-4.el7

Dependency Updated:
  glibc.x86_64 0:2.17-157.el7_3.5     glibc-common.x86_64 0:2.17-157.el7_3.5

Complete!

Next, fetch, compile, and install the current version of the “libssh2” library:

wget https://www.libssh2.org/download/libssh2-1.7.0.tar.gz
tar -xzvf ./libssh2-1.7.0.tar.gz
cd ./libssh2-1.7.0
./configure
make
sudo make install
make clean
cd ..
rm ./libssh2-1.7.0.tar.gz
rm -Rf ./libssh2-1.7.0

On Github someone has made the effort to set up the sources for PHP 7 compileable – its changes will also be the basis for the future SSH module. To this Github repository I hanged myself and compiled everything myself. As soon as the stabilized packages with IUS was taken, one should of course switch to this:

wget https://github.com/Sean-Der/pecl-networking-ssh2/archive/master.zip
unzip ./master.zip
cd ./pecl-networking-ssh2-master
phpize
./configure
make
sudo make install
make clean
cd ..
rm ./master.zip
rm -Rf ./pecl-networking-ssh2-master
sudo sh -c "echo 'extension=ssh2.so' >/etc/php.d/20-ssh2.ini"

install php7

And you have already installed PHP 7 on your CentOS 7 and is still bleading-edge on the road.

Now start Nginx service , PHP-fpm service and Mariadb service.

systemctl enable nginx
systemctl enable php-fpm
systemctl enable mariadb 

service nginx start
service php-fpm start
service mariadb start

More: config nginx to run PHP file

		location ~ \.php$ {
			fastcgi_split_path_info ^(.+\.php)(/.+)$;
        	include /etc/nginx/fastcgi_params;
        	fastcgi_pass 127.0.0.1:9000;
        	fastcgi_index index.php;
			fastcgi_connect_timeout 250;
			fastcgi_send_timeout 250;
			fastcgi_read_timeout 250;
			fastcgi_buffer_size 256k;
			fastcgi_buffers 4 256k;
			fastcgi_busy_buffers_size 256k;
			fastcgi_temp_file_write_size 256k;
			fastcgi_intercept_errors on;
        	fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html$fastcgi_script_name;
    	}

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