Learn about string and integer handling changes in PHP 7
Invalid octal literals ok even with ONLY_PHP7 · Issue #256 · nikic/PHP-Parser · GitHub
What is type of string in php?
Learn about string and integer handling changes in PHP 7
PHP7: Guide and References to all the changes between version 5.x and 7 of PHP | Ma-No Tech News & Analysis, javascript, angular, react, vue, php
Php 7.2 compliance workshop php benelux
The State of PHP Development
What's New in PHP 8.1? Features, Changes, Improvements, and More
Compiler error: "invalid octal digit". This happens for array [8] and [9]. Have changed array name but to no avail. Picture is attached. Help required - Code Composer Studio forum - Code
Literals in C/C++ With Examples - GeeksforGeeks
What's New in PHP 7 | PHP 7 Book
All you need to know about PHP 7.x — Part 2 | by Sandeep Kadam | Medium