Re: [Concept] declare(strict_identifiers=1)

On 26 August 2026 22:24:06 BST, Larry Garfield <larry@garfieldtech.com> wrote: >On Wed, Aug 26, 2026, at 2:42 PM, otzelot2021@outlook.de wrote: > >> The survey answers a different question: if a maintainer adds the declare >> to a file they already have, does it still compile? That is adoption >> friction, not breakage. It is also a calibration check -- a rule that >> rejected a lot of legitimate existing code would be the wrong rule, and I >> wanted to know that before proposing it rather than after. >> >> > Do I understand it correctly that by adding that declare to 168604 you >> > would uncover a single risky identifier? Not that convincing... >> >> That number is the cost, not the benefit, and I should have separated the >> two more clearly. >> >> The single Packagist finding is what would stop compiling: symfony/cache >> declares a class whose entire name is the single byte 0xA9. That is the >> whole measured adoption cost across the 250 most-installed packages. > >If this is so rarely seen in the wild (something that should be verified with more than 250 >packages), why make it an option? Just plan that PHP 9 will enforce UTF-8-or-GTFO rules on >identifiers, Symfony updates one oddball class, and we move on with life. 99.99% of developers >won't notice anything happened. > >--Larry Garfield Is it important enough to have this memory footprint added to each PHP process though? > About 13.7 KiB of generated tables cheers Derick