php best practices | php9.network

The Myth of Backward Compatibility in Modern PHP

creemdo | January 16, 2026

Abstract representation of legacy PHP code transitioning to modern structured architecture

The Myth of Backward Compatibility in Modern PHP Backward compatibility is often treated as a sacred rule in programming languages, and PHP is no exception. Many developers assume that PHP should run old code forever without complaint. In practice, this expectation has become one of the biggest misconceptions surrounding modern PHP. PHP was originally designed … The Myth of Backward Compatibility in Modern PHP

PHP 9: Why the Next Major Version Matters More Than the Number

creemdo | January 16, 2026

Abstract visualization of PHP server side code representing the evolution of the PHP language

PHP 9: Why the Next Major Version Matters More Than the Number Major version numbers tend to attract attention, but in the PHP ecosystem the real importance of PHP 9 is not the label itself. It represents a continuation of a long transition that started with PHP 7 and accelerated with PHP 8: stricter behavior, … PHP 9: Why the Next Major Version Matters More Than the Number