How to upgrade php 5

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PHP ( Hypertext Preprocessor) is a không tính tiền and xuất hiện source server-side scripting language. Which is used lớn generate dynamic web page. PHP contain HTML,Text & script blocks. When user request for a PHP page through website browser than PHP script execute on website server and display the requested result in browser.

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PHP 5.5 Features:

Included generators and coroutines.Included the at last keyword.Included an improved secret key hashing API.Added tư vấn 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 khung 2.1 including new capacities và enhancing existing functionality và so on.

In this article I will show how khổng lồ upgrade php 5.4 to php 5.5 on CentOS/RHEL 5/6/7 system.

Upgrade PHP 5.4 to lớn 5.5

Follow the steps to lớn upgrade php 5.4 to lớn php 5.5.

1. First we need to kiểm tra the current version of PHP. To kiểm tra the versio of PHP run following command:

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.rpmOn CentOS/RHEL 6

# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpmOn CentOS/RHEL 5

# rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm3. After installing the repository, now remove the old php version. Run the below command to remove the old php và its dependencies packages.

# yum remove php-commonYou will get some output lượt thích below.

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Dependencies Resolved=================================================================================== Package Arch Version Repository Size===================================================================================Removing: php-common x86_64 5.4.39-1.el6.remi
remi 626 kTransaction Summary===================================================================================Remove 14 Package(s)Installed size: 43 M4. 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-mbstring5. Next restart the apache service after installing PHP 5.5.

# /etc/init.d/httpd restart6. Verify the PHP version using below command.

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