PHP ( Hypertext Preprocessor) is a free and open source server-side scripting language. Which is used to generate dynamic web page. PHP contain HTML,Text and script blocks. When user request for a PHP page through web browser than PHP script execute on web server and display the requested result in browser.
PHP 5.5 Features:
- Included generators and coroutines.
- Included the at last keyword.
- Included an improved secret key hashing API.
- Added support for constant array/string dereferencing.
- Included scalar class name determination by means of ::class.
- Included backing for utilizing empty() on the result of function calls and different expressions.
- Included support for list() builds in for every statements.
- Included the Zend OPcache extension for opcode reserving.
- The GD library has been moved up to form 2.1 including new capacities and enhancing existing functionality and so on.
In this article I will show how to upgrade php 5.4 to php 5.5 on CentOS/RHEL 5/6/7 system.
Upgrade PHP 5.4 to 5.5
Follow the steps to upgrade php 5.4 to php 5.5.
1. First we need to check the current version of PHP. To check the versio of PHP run following command:
# php -v
PHP 5.4.35 (cli) (built: Nov 14 2014 07:04:10)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend Technologies.
2. Include the Webtatic EL yum repository data relating to your CentOS/RHEL variant to yum:
On CentOS/RHEL 7
# rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm # rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
On CentOS/RHEL 6
# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
On CentOS/RHEL 5
# rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm
3. After installing the repository, now remove the old php version. Run the below command to remove the old php and its dependencies packages.
# yum remove php-common
You will get some output like below.
Dependencies Resolved =================================================================================== Package Arch Version Repository Size =================================================================================== Removing: php-common x86_64 5.4.39-1.el6.remi @remi 7.0 M Removing for dependencies: php x86_64 5.4.39-1.el6.remi @remi 9.1 M php-cli x86_64 5.4.39-1.el6.remi @remi 12 M php-devel x86_64 5.4.39-1.el6.remi @remi 8.1 M php-gd x86_64 5.4.39-1.el6.remi @remi 665 k php-ldap x86_64 5.4.39-1.el6.remi @remi 119 k php-mbstring x86_64 5.4.39-1.el6.remi @remi 2.5 M php-mcrypt x86_64 5.4.39-1.el6.remi @remi 86 k php-mysql x86_64 5.4.39-1.el6.remi @remi 452 k php-pdo x86_64 5.4.39-1.el6.remi @remi 348 k php-pear noarch 1:1.9.5-9.el6.remi @remi 2.0 M php-process x86_64 5.4.39-1.el6.remi @remi 128 k php-snmp x86_64 5.4.39-1.el6.remi @remi 107 k php-xml x86_64 5.4.39-1.el6.remi @remi 626 k Transaction Summary =================================================================================== Remove 14 Package(s) Installed size: 43 M
4. Now install PHP 5.5 and php extension using following command.
# yum -y install php55w php55w-opcache # yum -y install php55w-xml php55w-mcrypt php55w-gd php55w-devel php55w-mysql php55w-intl php55w-mbstring
5. Next restart the apache service after installing PHP 5.5.
# /etc/init.d/httpd restart
6. Verify the PHP version using below command.
# php -v
PHP 5.5.23 (cli) (built: Apr 16 2015 22:49:36)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend Technologies
If you find this tutorial helpful please share with your friends to keep it alive. For more helpful topic browse my website www.looklinux.com. To become an author at LookLinux Submit Article. Stay connected to Facebook.
Leave a Comment