Update PHP Version on AWS EC2

To Update PHP version to newer or different version follow below steps:

Step 1: Check Existing PHP Version

$ php -v

Step 2: Update Yum

$ sudo yum update

Step 3: Stop the running web server

$ sudo service httpd stop

Step 4: Remove all existing PHP Packages

$ sudo yum remove php*

Step 5: Remove Old Web Server Installs

$ sudo yum remove httpd*

Step 6: Update Yum Package Repository

$ sudo yum clean all

$ sudo yum upgrade -y

Step 7: Install Apache

sudo yum install httpd

Step 8: Confirm that the amazon-linux-extras package is installed

$ which amazon-linux-extras

if command returns /usr/bin/amazon-linux-extras that means it is installed otherwise type below command to install

$ sudo yum install -y amazon-linux-extras

Step 9: Confirm desired version is available on AWS EC2

$ sudo  amazon-linux-extras | grep php

it will output 

 42  php7.4=latest            enabled      [ =stable ]
  _  php8.0                   available    [ =stable ]

Step 10: Disable Existing Version

$ sudo amazon-linux-extras disable php7.4

Step 11: Enable version you want to install

$ sudo amazon-linux-extras enable php8.0

Step 12: Install PHP Packages

$ sudo yum clean metadata
$ sudo yum install php php-{pear,cgi,common,curl,mbstring,gd,mysqlnd,gettext,bcmath,json,xml,fpm,intl,zip,imap}

Step 13: Install mod_ssl

sudo yum install mod_ssl

Step 14: Restart server

$ sudo httpd restart

Step 15: Check PHP version

$ php -v

If you getting requested url not found on server for all pages except home page. Set AllowOverride to All in httpd.conf file at /etc/httpd/conf 

<Directory "/var/www/html">
AllowOverride All
</Directory>