PHP 5 is no longer supported version!
The world is moving forward and planned cut off of major version of PHP 5 is about to happen in this year. Do not look back and try to convert over all your applications to PHP 7 soon, otherwise you will be vulnerable to potential upcoming bugs.
Find out exact dates of old and new PHP versions, this includes PHP 7.2, 7.3 and even 7.4.
"By the beginning of 2019, PHP will only support version of PHP 7.1 and onwards. This is probably a safe bet to moveover to that version as soon as possible as the deadline just hit on 3rd of Dece..."