How to install PHP on RedHat/CentOS 7 with Easy Steps

In this article, I will take you through the steps to install PHP on RedHat/CentOS 7. PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

How to install PHP on RedHat/CentOS 7 with Easy Steps 1

Pre-requisites

Apache web server should already be installed.

Update the System

You need to update the system first before installing the php packages using yum update command.

[root@localhost ~]# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* extras: centos.excellmedia.net
* updates: centos.excellmedia.net
No packages marked for update

Install PHP through yum

Now Install PHP using yum install php command.

[root@localhost ~]# yum install php
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* extras: centos.excellmedia.net
* updates: centos.excellmedia.net
Resolving Dependencies
--> Running transaction check
---> Package php.x86_64 0:5.4.16-46.1.el7_7 will be installed
--> Processing Dependency: php-common(x86-64) = 5.4.16-46.1.el7_7 for package: php-5.4.16-46.1.el7_7.x86_64
--> Processing Dependency: php-cli(x86-64) = 5.4.16-46.1.el7_7 for package: php-5.4.16-46.1.el7_7.x86_64
--> Processing Dependency: httpd-mmn = 20120211x8664 for package: php-5.4.16-46.1.el7_7.x86_64
--> Processing Dependency: httpd for package: php-5.4.16-46.1.el7_7.x86_64
--> Running transaction check
---> Package httpd.x86_64 0:2.4.6-90.el7.centos will be installed
--> Processing Dependency: httpd-tools = 2.4.6-90.el7.centos for package: httpd-2.4.6-90.el7.centos.x86_64
--> Processing Dependency: /etc/mime.types for package: httpd-2.4.6-90.el7.centos.x86_64
--> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-90.el7.centos.x86_64
--> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-90.el7.centos.x86_64
---> Package php-cli.x86_64 0:5.4.16-46.1.el7_7 will be installed
---> Package php-common.x86_64 0:5.4.16-46.1.el7_7 will be installed
--> Processing Dependency: libzip.so.2()(64bit) for package: php-common-5.4.16-46.1.el7_7.x86_64
--> Running transaction check
---> Package apr.x86_64 0:1.4.8-5.el7 will be installed
---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed
---> Package httpd-tools.x86_64 0:2.4.6-90.el7.centos will be installed
---> Package libzip.x86_64 0:0.10.1-8.el7 will be installed
---> Package mailcap.noarch 0:2.1.41-2.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================
Package Arch Version Repository Size
========================================================================================================================================================================
Installing:
php x86_64 5.4.16-46.1.el7_7 updates 1.4 M
Installing for dependencies:
apr x86_64 1.4.8-5.el7 base 103 k
apr-util x86_64 1.5.2-6.el7 base 92 k
httpd x86_64 2.4.6-90.el7.centos base 2.7 M
httpd-tools x86_64 2.4.6-90.el7.centos base 91 k
libzip x86_64 0.10.1-8.el7 base 48 k
mailcap noarch 2.1.41-2.el7 base 31 k
php-cli x86_64 5.4.16-46.1.el7_7 updates 2.7 M
php-common x86_64 5.4.16-46.1.el7_7 updates 565 k

Transaction Summary
========================================================================================================================================================================
Install 1 Package (+8 Dependent packages)

Total download size: 7.7 M
Installed size: 27 M
Is this ok [y/d/N]: y
Downloading packages:
(1/9): apr-1.4.8-5.el7.x86_64.rpm | 103 kB 00:00:00
(2/9): mailcap-2.1.41-2.el7.noarch.rpm | 31 kB 00:00:00
(3/9): httpd-tools-2.4.6-90.el7.centos.x86_64.rpm | 91 kB 00:00:00
(4/9): apr-util-1.5.2-6.el7.x86_64.rpm | 92 kB 00:00:00
(5/9): libzip-0.10.1-8.el7.x86_64.rpm | 48 kB 00:00:00
(6/9): php-5.4.16-46.1.el7_7.x86_64.rpm | 1.4 MB 00:00:00
(7/9): php-common-5.4.16-46.1.el7_7.x86_64.rpm | 565 kB 00:00:00
(8/9): httpd-2.4.6-90.el7.centos.x86_64.rpm | 2.7 MB 00:00:01
(9/9): php-cli-5.4.16-46.1.el7_7.x86_64.rpm | 2.7 MB 00:00:01
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 2.8 MB/s | 7.7 MB 00:00:02
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : apr-1.4.8-5.el7.x86_64 1/9
Installing : apr-util-1.5.2-6.el7.x86_64 2/9
Installing : httpd-tools-2.4.6-90.el7.centos.x86_64 3/9
Installing : libzip-0.10.1-8.el7.x86_64 4/9
Installing : php-common-5.4.16-46.1.el7_7.x86_64 5/9
Installing : php-cli-5.4.16-46.1.el7_7.x86_64 6/9
Installing : mailcap-2.1.41-2.el7.noarch 7/9
Installing : httpd-2.4.6-90.el7.centos.x86_64 8/9
Installing : php-5.4.16-46.1.el7_7.x86_64 9/9
Verifying : php-cli-5.4.16-46.1.el7_7.x86_64 1/9
Verifying : mailcap-2.1.41-2.el7.noarch 2/9
Verifying : httpd-tools-2.4.6-90.el7.centos.x86_64 3/9
Verifying : apr-util-1.5.2-6.el7.x86_64 4/9
Verifying : httpd-2.4.6-90.el7.centos.x86_64 5/9
Verifying : apr-1.4.8-5.el7.x86_64 6/9
Verifying : libzip-0.10.1-8.el7.x86_64 7/9
Verifying : php-5.4.16-46.1.el7_7.x86_64 8/9
Verifying : php-common-5.4.16-46.1.el7_7.x86_64 9/9

Installed:
php.x86_64 0:5.4.16-46.1.el7_7

Dependency Installed:
apr.x86_64 0:1.4.8-5.el7 apr-util.x86_64 0:1.5.2-6.el7 httpd.x86_64 0:2.4.6-90.el7.centos httpd-tools.x86_64 0:2.4.6-90.el7.centos
libzip.x86_64 0:0.10.1-8.el7 mailcap.noarch 0:2.1.41-2.el7 php-cli.x86_64 0:5.4.16-46.1.el7_7 php-common.x86_64 0:5.4.16-46.1.el7_7

Complete!

Check Installed PHP Version

Once installation is completed, check the php version using php version command.

[root@localhost ~]# php --version
PHP 5.4.16 (cli) (built: Nov 1 2019 16:04:20)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

Write your first PHP Program

Let’s write our first php program.

<?php
phpinfo();
?>

Output

PHP Warning: phpinfo(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /root/test.php on line 2
phpinfo()
PHP Version => 5.4.16

System => Linux localhost.localdomain 3.10.0-1062.1.2.el7.x86_64 #1 SMP Mon Sep 30 14:19:46 UTC 2019 x86_64
Build Date => Nov 1 2019 16:04:16
Server API => Command Line Interface
Virtual Directory Support => disabled
Configuration File (php.ini) Path => /etc
Loaded Configuration File => /etc/php.ini
Scan this dir for additional .ini files => /etc/php.d
Additional .ini files parsed => /etc/php.d/curl.ini,
/etc/php.d/fileinfo.ini,
/etc/php.d/json.ini,
/etc/php.d/phar.ini,
/etc/php.d/zip.ini

PHP API => 20100412
PHP Extension => 20100525
Zend Extension => 220100525
Zend Extension Build => API220100525,NTS
PHP Extension Build => API20100525,NTS
Debug Build => no
Thread Safety => disabled
Zend Signal Handling => disabled
Zend Memory Manager => enabled
Zend Multibyte Support => disabled
IPv6 Support => enabled
DTrace Support => disabled

Registered PHP Streams => https, ftps, compress.zlib, compress.bzip2, php, file, glob, data, http, ftp, phar, zip
Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, sslv3, tls
Registered Stream Filters => zlib.*, bzip2.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk

This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

_______________________________________________________________________

Configuration

bz2

BZip2 Support => Enabled
Stream Wrapper support => compress.bzip2://
Stream Filter support => bzip2.decompress, bzip2.compress
BZip2 Version => 1.0.6, 6-Sept-2010

calendar

Calendar support => enabled

Core

PHP Version => 5.4.16

Directive => Local Value => Master Value
allow_url_fopen => On => On
allow_url_include => Off => Off
always_populate_raw_post_data => Off => Off
arg_separator.input => & => &
arg_separator.output => & => &
asp_tags => Off => Off
auto_append_file => no value => no value
auto_globals_jit => On => On
auto_prepend_file => no value => no value
browscap => no value => no value
default_charset => no value => no value
default_mimetype => text/html => text/html
disable_classes => no value => no value
disable_functions => no value => no value
display_errors => Off => Off
display_startup_errors => Off => Off
doc_root => no value => no value
docref_ext => no value => no value
docref_root => no value => no value
enable_dl => Off => Off
enable_post_data_reading => On => On
error_append_string => no value => no value
error_log => no value => no value
error_prepend_string => no value => no value
error_reporting => 22527 => 22527
exit_on_timeout => Off => Off
expose_php => On => On
extension_dir => /usr/lib64/php/modules => /usr/lib64/php/modules
file_uploads => On => On
highlight.comment => <font style="color: #FF8000">#FF8000</font> => <font style="color: #FF8000">#FF8000</font>
highlight.default => <font style="color: #0000BB">#0000BB</font> => <font style="color: #0000BB">#0000BB</font>
highlight.html => <font style="color: #000000">#000000</font> => <font style="color: #000000">#000000</font>
highlight.keyword => <font style="color: #007700">#007700</font> => <font style="color: #007700">#007700</font>
highlight.string => <font style="color: #DD0000">#DD0000</font> => <font style="color: #DD0000">#DD0000</font>
html_errors => Off => Off
ignore_repeated_errors => Off => Off
ignore_repeated_source => Off => Off
ignore_user_abort => Off => Off
implicit_flush => On => On
include_path => .:/usr/share/pear:/usr/share/php => .:/usr/share/pear:/usr/share/php
log_errors => On => On
log_errors_max_len => 1024 => 1024
mail.add_x_header => On => On
mail.force_extra_parameters => no value => no value
mail.log => no value => no value
max_execution_time => 0 => 0
max_file_uploads => 20 => 20
max_input_nesting_level => 64 => 64
max_input_time => -1 => -1
max_input_vars => 1000 => 1000
memory_limit => 128M => 128M
open_basedir => no value => no value
output_buffering => 0 => 0
output_handler => no value => no value
post_max_size => 8M => 8M
precision => 14 => 14
realpath_cache_size => 16K => 16K
realpath_cache_ttl => 120 => 120
register_argc_argv => On => On
report_memleaks => On => On
report_zend_debug => Off => Off
request_order => GP => GP
sendmail_from => no value => no value
sendmail_path => /usr/sbin/sendmail -t -i => /usr/sbin/sendmail -t -i
serialize_precision => 17 => 17
short_open_tag => Off => Off
SMTP => localhost => localhost
smtp_port => 25 => 25
sql.safe_mode => Off => Off
track_errors => Off => Off
unserialize_callback_func => no value => no value
upload_max_filesize => 2M => 2M
upload_tmp_dir => no value => no value
user_dir => no value => no value
user_ini.cache_ttl => 300 => 300
user_ini.filename => .user.ini => .user.ini
variables_order => GPCS => GPCS
xmlrpc_error_number => 0 => 0
xmlrpc_errors => Off => Off
zend.detect_unicode => On => On
zend.enable_gc => On => On
zend.multibyte => Off => Off
zend.script_encoding => no value => no value

ctype

ctype functions => enabled

curl

cURL support => enabled
cURL Information => 7.29.0
Age => 3
Features
AsynchDNS => Yes
Debug => No
GSS-Negotiate => Yes
IDN => Yes
IPv6 => Yes
Largefile => Yes
NTLM => Yes
SPNEGO => No
SSL => Yes
SSPI => No
krb4 => No
libz => Yes
CharConv => No
Protocols => dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtsp, scp, sftp, smtp, smtps, telnet, tftp
Host => x86_64-redhat-linux-gnu
SSL Version => NSS/3.36
ZLib Version => 1.2.7
libSSH Version => libssh2/1.4.3

date

date/time support => enabled
"Olson" Timezone Database Version => 0.system
Timezone Database => internal
Default timezone => UTC

Directive => Local Value => Master Value
date.default_latitude => 31.7667 => 31.7667
date.default_longitude => 35.2333 => 35.2333
date.sunrise_zenith => 90.583333 => 90.583333
date.sunset_zenith => 90.583333 => 90.583333
date.timezone => no value => no value

ereg

Regex Library => Bundled library enabled

exif

EXIF Support => enabled
EXIF Version => 1.4 $Id$
Supported EXIF Version => 0220
Supported filetypes => JPEG,TIFF

Directive => Local Value => Master Value
exif.decode_jis_intel => JIS => JIS
exif.decode_jis_motorola => JIS => JIS
exif.decode_unicode_intel => UCS-2LE => UCS-2LE
exif.decode_unicode_motorola => UCS-2BE => UCS-2BE
exif.encode_jis => no value => no value
exif.encode_unicode => ISO-8859-15 => ISO-8859-15

Also Read: HTML Tables

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References: PHP Manual

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