This tutorial will guide you to upgrade PHP to 7.2 from any past versions like 5.6 or 7.0.<\/p>\n\n\n\n
So you know you already understand the time for 5.6 and 7.0 passed out months ago.<\/p>\n\n\n\n
So let us plan to upgrade PHP to the latest ie 7.2. Which comes with several safety stains. As a mighty upgrade strategy, Always Backup 100% first. So keep everything backup accompanied by databases.<\/p>\n\n\n\n
At Ubuntu, with my particular experience, before starting any advance, always start with 2 commands.<\/p>\n\n\n\n
1) <\/strong>Become Sudo user with the command \u201csudo su\u201d<\/strong> and then<\/p>\n\n\n\n \u00a0\u00a0\u00a0 apt-get update \u00a0\u00a0\u00a0<\/p> \u00a0\u00a0\u00a0 apt-get upgrade<\/p><\/blockquote><\/pre>\n\n\n\n 2)<\/strong> Now time to include \u201cOndrej PPA\u201d<\/strong><\/p>\n\n\n\n sudo apt-get install software-properties-common<\/p> sudo add-apt-repository ppa:ondrej\/php<\/p> apt-get update<\/p><\/blockquote><\/pre>\n\n\n\n 3)<\/strong> Now install PHP and it\u2019s Extensions.<\/p>\n\n\n\n apt-get install php7.2<\/p> apt-get install libapache2-mod-php7.2<\/p> sudo apt-get install php7.2 php7.2-cli php7.2-common<\/p> sudo apt-get install php7.2-json php7.2-opcache<\/p> sudo apt-get install php7.2-mysql<\/p> sudo apt-get install php7.2-bcmath php7.2-xml<\/p> sudo apt-get install php7.2-curl php7.2-imap php7.2-gd<\/p><\/blockquote><\/pre>\n\n\n\n 4)<\/strong> Now time to modify php.ini<\/strong> to add server execution<\/p>\n\n\n\n cd \/etc\/php\/7.2\/apache2<\/p> nano php.ini<\/p> memory_limit ( 40 - 50 % of Memory),<\/p> max_file_uploads (20 - 50),<\/p> post_max_size (40 - 50 % of Memory),<\/p> max_execution_time (3600) ,<\/p> upload_max_filesize ( 40 - 50 % of Memory),<\/p> max_input_time = 1000<\/p><\/blockquote><\/pre>\n\n\n\n 5)<\/strong> Now disable old PHP and enable a new PHP version<\/p>\n\n\n\n a2dismod php5.6 or a2dismod php7.0<\/p>\n\n\n\n a2enmod php7.2<\/p>\n\n\n\n 6)<\/strong> Time to restart Apache<\/p>\n\n\n\n Service apache2 restart<\/p><\/blockquote><\/pre>\n\n\n\n 7) <\/strong>Now type php -v or php \u2013version<\/strong><\/p>\n\n\n\n You should get a message like this<\/p>\n\n\n\n PHP 7.2.5-1+ubuntu18.04.1+deb.sury.org+1 (cli) (built: May 3 2019 10:00:24) ( NTS )<\/p>\n\n\n\n Copyright (c) 1997-2018 The PHP Group Zend Engine v3.3.5, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.5-1+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999- 2018, by Zend Technologies<\/p>\n\n\n\n As you already have seen, you have PHP 7.2, go to the webroot of server ie \/var\/www\/html, Create a file info.php.<\/p>\n\n\n\n Put this content into this file<\/p>\n\n\n\n Now reach to this file via browser-ie https:\/\/mydomain\/info.php<\/p>\n\n\n\n So your command line PHP (PHP-CLI) and PHP on the browser must be the same version. ie php7.2 in our case.<\/p>\n\n\n\n Now if you want to use different PHP for different websites, Go this article.<\/p>\n\n\n\n\n