How to install php environment in centos7-PHP Problem-php.cn

How to install the php environment in centos7: first use yum to quickly build the LAMP platform; then install PHP and associate php with mysql; then install common PHP modules and create "phpinfo();" for testing PHP; finally restart the apache server.

How to install php environment in centos7

Install the PHP environment under Centos7

Use yum to quickly build the LAMP platform

Experimental environment:

[root@nmserver-7 html]# cat  /etc/redhat-release 
CentOS release 7.3.1611 (AltArch) 
[root@nmserver-7 html]# uname -a
Linux nmserver-7.test.com 3.10.0-514.el7.centos.plus.i686 #1 SMP Wed Jan 25 12:55:04 UTC 2017 i686 i686 i386 GNU/Linux

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1. Install apache

　1.1 Install apache

[root@nmserver-7 ~]# yum install httpd httpd-devel

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　1.2 Start the apache service

[root@nmserver-7 ~]# systemctl start  httpd

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　1.3 Set up the httpd service to start at boot

[root@nmserver-7 ~]# systemctl enable  httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.

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　1.4 Check the service status

[root@nmserver-7 ~]# systemctl status httpd
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: active (running) since 五 2017-07-21 17:21:37 CST; 6min ago
     Docs: man:httpd(8)
           man:apachectl(8)
 Main PID: 2449 (httpd)
   Status: "Total requests: 11; Current requests/sec: 0; Current traffic:   0 B/sec"
   CGroup: /system.slice/httpd.service
           ├─2449 /usr/sbin/httpd -DFOREGROUND
           ├─2450 /usr/sbin/httpd -DFOREGROUND
           ├─2451 /usr/sbin/httpd -DFOREGROUND
           ├─2452 /usr/sbin/httpd -DFOREGROUND
           ├─2453 /usr/sbin/httpd -DFOREGROUND
           ├─2454 /usr/sbin/httpd -DFOREGROUND
           ├─2493 /usr/sbin/httpd -DFOREGROUND
           ├─2494 /usr/sbin/httpd -DFOREGROUND
           └─2495 /usr/sbin/httpd -DFOREGROUND
7月 21 17:21:35 nmserver-7.test.com systemd[1]: Starting The Apache HTTP Server...
7月 21 17:21:36 nmserver-7.test.com httpd[2449]: AH00558: httpd: Could not reliably determine the server&#39;s fully q...ssage
7月 21 17:21:37 nmserver-7.test.com systemd[1]: Started The Apache HTTP Server.
Hint: Some lines were ellipsized, use -l to show in full.

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　　1.5 防火墙设置开启80端口
[root@nmserver-7 ~]# firewall-cmd --permanent --zone=public  --add-service=http
success
[root@nmserver-7 ~]# firewall-cmd --permanent --zone=public  --add-service=https
success
[root@nmserver-7 ~]# firewall-cmd --reload
success

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　1.6 Confirm that port 80 is listening

[root@nmserver-7 ~]# netstat -tulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:ssh             0.0.0.0:*               LISTEN      1084/sshd           
tcp        0      0 localhost:smtp          0.0.0.0:*               LISTEN      1486/master         
tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      1084/sshd           
tcp6       0      0 localhost:smtp          [::]:*                  LISTEN      1486/master         
tcp6       0      0 [::]:http               [::]:*                  LISTEN      2449/httpd          
udp        0      0 localhost:323           0.0.0.0:*                           592/chronyd         
udp6       0      0 localhost:323           [::]:*                              592/chronyd

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　1.8 Check the server IP

[root@nmserver-7 ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:56:bc:cf brd ff:ff:ff:ff:ff:ff
    inet 192.168.8.9/24 brd 192.168.8.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe56:bccf/64 scope link 
       valid_lft forever preferred_lft forever
3: bridge0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether ea:89:d5:c7:32:73 brd ff:ff:ff:ff:ff:ff

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　1.9 Browser login

If the browser cannot access it, configure the security group 80 of the Alibaba Cloud console

2. Install mysql

　2.1 Install mysql

[root@nmserver-7 ~]# yum install mariadb mariadb-server mariadb-libs mariadb-devel
 
root@nmserver-7 ~]# rpm -qa |grep maria
mariadb-libs-5.5.52-1.el7.i686
mariadb-5.5.52-1.el7.i686
mariadb-server-5.5.52-1.el7.i686
mariadb-devel-5.5.52-1.el7.i686

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　2.2 Open the mysql service, and set it to start at boot, check the mysql status

[root@nmserver-7 ~]# systemctl start  mariadb 
[root@nmserver-7 ~]# systemctl enable  mariadb 
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.
[root@nmserver-7 ~]# systemctl status  mariadb 
● mariadb.service - MariaDB database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since 六 2017-07-22 21:19:20 CST; 21s ago
 Main PID: 9603 (mysqld_safe)
   CGroup: /system.slice/mariadb.service
           ├─9603 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
           └─9760 /usr/libexec/mysqld --basedir=/usr --datadir=/v...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:15 nmserver-7.test.com mariadb-prepare-db-dir[9524]: ...
7月 22 21:19:16 nmserver-7.test.com mysqld_safe[9603]: 170722 21...
7月 22 21:19:16 nmserver-7.test.com mysqld_safe[9603]: 170722 21...
7月 22 21:19:20 nmserver-7.test.com systemd[1]: Started MariaDB ...

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[root@nmserver-7 ~]# netstat -tulp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:ssh             0.0.0.0:*               LISTEN      1084/sshd           
tcp        0      0 0.0.0.0:mysql           0.0.0.0:*               LISTEN      9760/mysqld         
tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      1084/sshd           
tcp6       0      0 [::]:http               [::]:*                  LISTEN      2449/httpd          
udp        0      0 localhost:323           0.0.0.0:*                           592/chronyd         
udp6       0      0 localhost:323           [::]:*                              592/chronyd

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　2.3 Database security settings

[root@nmserver-7 ~]# mysql_secure_installation 
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we&#39;ll need the current
password for the root user.  If you&#39;ve just installed MariaDB, and
you haven&#39;t set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none): 
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y
 ... Success!
Normally, root should only be allowed to connect from &#39;localhost&#39;.  This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] n
 ... skipping.
By default, MariaDB comes with a database named &#39;test&#39; that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y
 ... Success!
Cleaning up...
All done!  If you&#39;ve completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!

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　2.4 Log in to the database test

[root@nmserver-7 ~]# mysql -uroot -p
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 5.5.52-MariaDB MariaDB Server
Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
Type &#39;help;&#39; or &#39;\h&#39; for help. Type &#39;\c&#39; to clear the current input statement.
MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
3 rows in set (0.02 sec)
MariaDB [(none)]>

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3. Install PHP

　3.1 Install php

[root@nmserver-7 ~]# yum -y install php
[root@nmserver-7 ~]# rpm -ql php
/etc/httpd/conf.d/php.conf
/etc/httpd/conf.modules.d/10-php.conf
/usr/lib/httpd/modules/libphp5.so
/usr/share/httpd/icons/php.gif
/var/lib/php/session

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　3.2 Connect php with mysql Associate it

[root@nmserver-7 ~]# yum install php-mysql
[root@nmserver-7 ~]# rpm -ql php-mysql
/etc/php.d/mysql.ini
/etc/php.d/mysqli.ini
/etc/php.d/pdo_mysql.ini
/usr/lib/php/modules/mysql.so
/usr/lib/php/modules/mysqli.so
/usr/lib/php/modules/pdo_mysql.so

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　3.3 Install common PHP modules

[root@nmserver-7 ~]# yum install -y php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-snmp php-soap curl curl-devel php-bcmath

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　3.4 Test PHP

[root@nmserver-7 ~]# cd  /var/www/html/
[root@nmserver-7 html]# ls
[root@nmserver-7 html]# pwd
/var/www/html
[root@nmserver-7 html]# vi info.php
<?php
        phpinfo();
?>
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:wq

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　3.5 Restart apache server

[root@nmserver-7 html]# systemctl restart http

　3.6 Test PHP

Enter 192.168.8.9/info.php in your computer browser, You can see the installed modules;

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