Morning! I want to ask this question one more time before PHP7 feature freeze: can we the engine case sensitive from PHP>=7.0?
There is a draft for that: https://wiki.php.net/rfc/case-sensitivity (mostly empty), so I decided to ask this question in the internals mail list. Pros: more simple O(1) hash table checks for properties, functions, methods, classes without strtolower normalization on the engine/parser level. Consistency with unicode class names (yes, they are case sensitive, check http://3v4l.org/ia0pc), consistency with exisiting PSR0,4 standards (case sensitive mapping of class names to the file names) >From my experience, all modern PHP framework don't use case-insensitive code, so chance to break anything for them is really low. Cons: on the extension level things aren't so good and can be some BC breaks (like with phpng) Possible ways: 1) Keep PHP engine case-insensitive for PHP7 2) Make PHP engine case-sensitive since PHP7 with possible minor BC breaks in the extensions (this breaks can be easily fixed) 3) Add a compile-time switch, eg. --with-case-sensitivity to the configuration to have an ability to build PHP with sensitivity and make this option enabled by default since next major version (PHP>=8.0). Add deprecation notices in 7.x Thoughts?
