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![[RFC] Case sensitive PHP](/images/og-default.png)
externals.io0 Hot0 comments18 min read
[RFC] Case sensitive PHP
A PHP internals mailing list thread discussing a proposed RFC to make PHP fully case-sensitive. Currently, PHP treats function names, class names, and method names case-insensitively (e.g., STRLEN() works the same as strlen()). The RFC author Jorg Sowa proposes deprecating case-insensitive behavior in a current PHP version and promoting it to an error in PHP 9.0. Supporters argue it simplifies the engine, removes the need for identifier normalization passes, benefits static analyzers and LSPs, and aligns PHP with most other languages. Opponents question the practical benefit, raise concerns about PHP's own inconsistent built-in naming conventions (DateTime vs PDO vs mysqli), and worry about breaking dynamic method calls. The RFC author acknowledges the core real-world motivation is autoloading portability across case-sensitive and case-insensitive file systems.
Source: https://externals.io/message/131506. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
